Xantia II - Body Computer (CPH) Diagnosis

diagnosis : body computer (CPH) (with coded key) ELECTRONIC ANTI-THEFT KEY

1 Diagnostic tools

CAUTION : The CPH will not operate during dialogue with the diagnostic instrument.

1.1 ELIT : 4125-T test unit

The tool can be used for

:

• identification of the CPH

• reading the fault codes

• reading of the 15 most recent causes of the alarm going off (CPH2)

• deletion of the 15 most recent causes of the alarm going off (CPH2)

• measuring the parameters

• test the actuators

• initialisation of the keys and remote controls

• initialisation of the ECUs (after replacement)

• initialisation of the body computer with the engine ECU (after replacement of the CPH and the ECU)

• programming of the CPH

1.2 Test connector box : 4109-T

The tool, associated with the electrical harness C 1237 , can be used for reading voltages and resistances.

1.3 PROXIA : 4165-T diagnostic station


:









• consultation of the electrical wiring diagrams


• programming of the CPH (configuration)

PAGE 1 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)

1.4 LEXIA : 4171-T diagnostic station


:









• consultation of the electrical wiring diagrams


• programming of the CPH

2 Fault-finding tables

2.1 Fault list

Fault code 1 :

re-supply to the engine ECU.

Fault code 2 :

no response from the engine ECU.

Fault code 3 :

engine ECU locking problem.

Fault code 4 :

faulty analogue module.

Fault code 5 :

disconnected analogue module.

Fault code 6 :

key not recognised.

Fault code 7 :

non-synchronised remote control.

Fault code 8 :

remote control battery has run out.


Fault code 9 :

faulty remote control.

Fault code 10 :

passenger's door locking button not locking.

Fault code 11 :

driver's door locking button not locking.

Fault code 12 :

deadlocking not possible ;

rear RH door open.

Fault code 13 :

deadlocking not possible ;

rear LH door open.

Fault code 14 :

dialogue with the alarm siren not possible.

2.2 Fault code 1 : re-supply to the engine ECU

The engine ECU resupply control line is short-circuited.

The resupply output enables the CPH to resupply the engine ECU with voltage, ignition off, to send it the locking

order.

The resupply and locking of the engine ECU takes place 10 seconds after opening the driver's door, ignition off.

If opening of the driver's door is not detected :

resupply and locking of the engine ECU will take place 5 minutes after the ignition is switched off.

Location of

components.

ECU connector. Test connector

box no.

Component

terminals.

Test values.

Engine ECU

connection ;

double r

elay or r

esupply

relay (de

pending

on engin

e).

Connected. 7 ( 26 -way

yellow) -

13 ( 15 -way blac

k).

Refer to the

relevant diagram

relating to the

vehicle engine.

Diagnostic

equipment :

Ignition on :


Ignition off ,

Check that the

engine ECU is

correctly

resupplied if the

resupply takes

place via a relay.

Disconnected. Diagnostic

equipment :

Check the

continuity and

insulation of the

control line.

Check the

resupply relay (if

fitted).

2.3 Fault code 2 : no response from the engine ECU

The CPH has not received a response from the engine ECU.

The engine ECU relates its status (locked or unlocked)

:

• each time the ignition is switched on

• each time it receives an order from the CPH (unlocking and locking)

If the engine ECU does not understand or accept the CPH order, it replies with an error message (see fault 3 ).

CAUTION : The engine ECU can only respond if it is correctly supplied .

First and foremost check the ECU supply with the ignition on, and its resupply with the ignition off when locking (


see fault 1 ).

Location of

components.


box no.

Component

terminals.

Test values.

Engine ECU

connection :

engine

ECU to

CPH dial

ogue.


yellow) -

13 ( 15 -way blac

k).

Refer to the

relevant diagram

relating to the

vehicle engine.

Diagnostic

equipment :

With engine

warning lamp on

(with ignition on) :

Without engine

warning lamp or

warning lamp off :

The logical state

of the line can

also be checked ;

Ignition off ,



equipment :

Check the

continuity and

isolation of the

line between the

engine ECU and

the CPH .

N.B. : Depending on the engine, this line can also be used by the injection ECU to control the engine diagnostic

warning lamp in the instrument panel.

CAUTION : The fault may appear if the CPH .

Check the + after ignition information (see chapter 3 ).

2.4 Fault code 3 : engine ECU locking problem

The engine ECU responds to the CPH command with a fault message.

The engine ECU relates its status (locked or unlocked)

:

• each time the ignition is switched on

• each time it receives an order from the CPH (unlocking, locking or initialising)

If the engine ECU does not understand or accept the CPH order, it replies with an error message.

If the fault occurs when trying to unlock on switching on the ignition :

check the compatibility of the CPH/engine ECU/vehicle.

If one of the components comes from another vehicle :

the engine ECU can not recognise the code used by the CPH.

If the fault occurs when initialising the engine ECU :

ensure that the engine ECU is new and is compatible with the transponder anti-theft function.

Location of

components.


box no.

Component

terminals.

Test values.


Engine ECU

connection :

CPH to

engine E

CU dialo

gue.


yellow) -

13 ( 15 -way blac

k).

Refer to the

relevant diagram

relating to the

vehicle engine.

Diagnostic

equipment :

U = U battery

(except when the

CPH is sending

locking and

unlocking orders).

Ignition off ,


equipment :

Check the

continuity and

isolation of the

line between the

engine ECU and

the CPH.

2.5 Fault code 4 : faulty analogue module

The transponder aerial is faulty.

Check that the aerial is the right one for.

Refer to section 4.1.1.

2.6 Fault code 5 :


disconnected analogue module

The CPH has not received a reply from the transponder aerial.

Check that the module is properly connected.

Location of

components.


box no.

Component

terminals.

Test values.

Aerial supply. Connected. 12 - 21 ( 26 -way

yellow).

5 - 1. Diagnostic

equipment :

U = U battery.

Disconnected. 12. 5. Diagnostic

equipment :

Check the

continuity and

isolation of the

line between the

analogue module

and the CPH.

Clock. Connected. 23 - 21 ( 26 -way

yellow).

4 - 1. Diagnostic

equipment :

U • 11,2 V.

On switching off

the ignition, there

will be variations

in the voltage

along the line :


equipment :

Check the

continuity and

isolation of the

line between the

analogue module

and the CPH.

CPH/aerial

dialogue.

Connected. 8 - 21 ( 26 -way

yellow).

3 - 1. Diagnostic

equipment :


U • 10,1 V.

On switching off

the ignition, there

will be variations

in the voltage

along the line :


equipment :

Check the

continuity and

isolation of the

line between the

analogue module

and the CPH.

2.7 Fault code 6 : key not recognised

The electronic component incorporated in the coded key contains 2 types of code

:

• a fixed identification code

• an authentication code which changes each time the ignition is switched on

2.7.1 Invalid identification code

The CPH has not recognised the key identification code

:

• check that the key is the right one for the vehicle

• initialise the keys

2.7.2 Identification code not received

The CPH has not recognised the key identification code.

This code is only used for the key-in-ignition audible warning ,

when switching off ignition.

If the fault is not accompanied by an authentication defect code :


the key is faulty.

CAUTION : This fault occurs systematically on opening the driver's door when there is no key in the ignition

.

Ignore the fault if the key is not in the ignition.

2.7.3 Invalid authentication code

The CPH has not recognised the key authentication code.

The key is faulty or hasn't been initialised.

Initialise the keys.

URGENT : It is necessary to have available both the vehicle access code, recorded on the

customer's confidential card, as well as all the vehicle keys.

The initialisation procedure is interrupted once a faulty key is detected.

Repeat the initialisation procedure without the faulty key.

2.7.4 Authentication code not received

The CPH has not received the key authentication code.

The key is faulty or hasn't been initialised.

2.8 Fault code 7 : non-synchronised remote control

The central locking remote control becomes desynchronised if pressed repeatedly while outside its operational

range.

Resynchronise it.

Resynchronisation procedure

:

• switch on the ignition

• press one of the remote control buttons

2.9 Fault code 8 : remote control battery has run out

The central locking remote control battery is discharged.


The door open warning lamp flashes to signify a fault.

Replace the battery.

2.10 Fault code 9 : faulty remote control

The remote control signal has been disrupted.

Try again to lock/unlock the vehicle to see whether the fault reoccurs.

2.11 Fault code 10 : passenger's door locking button not locking

Fault of having received the confirmation of the locked state of the passenger door :

the CPH has unlocked the doors on the issue of the locking command.

This fault may simply be the result of a locking command received with the door still open.

Location of

components.


box no.

Component

terminals.

Test values.

Locking button

switch .

In the fr

ont pass

enger's

door loc

k (6207).


yellow) -

13 ( 15 -way blac

k).

Diagnostic

equipment :

Locking button

down :

Locking button up

:


equipment :

Locking button

down :


2.12 Fault code 11 : driver's door locking button not locking

Fault of having received the confirmation of the locked state of the passenger door :

the CPH has unlocked the doors on the issue of the locking command.

This fault may simply be the result of a locking command received with the door still open.

Location of

components.


box no.

Component

terminals.

Test values.

Locking button

switch .

In the d

river's d

oor lock

(6202).


yellow) -

13 ( 15 -way blac

k).

Diagnostic

equipment :

Locking button

down :

Locking button up

:


equipment :

Locking button

down :

2.13 Fault code 12 :


deadlocking not possible ; rear RH door open

This fault occurs when a locking command is transmitted but the rear door remains open.

For vehicles equipped with deadlocks, it is therefore not possible to activate the deadlocks.

Location of

components.


box no.

Component

terminals.

Test values.

Rear RH door

open switch .

In the lo

ck.


yellow) -

13 ( 15 -way blac

k).

Diagnostic

equipment :

Door open :

Rear RH door

closed :


equipment :

Door open :

2.14 Fault code 13 : deadlocking not possible ; rear LH door open

This fault occurs when a locking command is transmitted but the rear door remains open.

For vehicles equipped with deadlocks, it is therefore not possible to activate the deadlocks.

Location of

components.


box no.

Component

terminals.

Test values.

Rear LH door

open switch .

In the lo


yellow) -

13 ( 15 -way blac

Diagnostic

equipment :


ck. k).

Door open :

Rear LH door

closed :


equipment :

Door open :

2.15 Fault code 14 : dialogue with the alarm siren not possible

The CPH has been unable to establish a dialogue with the alarm siren.


CAUTION : For a CPH 2 fitted on a vehicle without an alarm, this fault will be systematic.

3 Electrical checks

3.1 Supplies to the CPH

Location of

components.


box no.

Component

terminals.

Test values.

Supply to the

CPH +

permanent.


black).

Fuse F25. Diagnostic

equipment :

U = 12 volts.

Supply to the

CPH + permanent

outputs.

1 - 13 ( 15 -way

black).

Fuse F15. Diagnostic

equipment :


U = 12 volts.

3.2 Ignition on information

Location of

components.


box no.

Component

terminals.

Test values.


black).

Fuse F2. Diagnostic

equipment :

Ignition on :

4 Transponder function

4.1 Testing the components

4.1.1 Transponder analogue module

Location of

components.

ECU connectors. Test connector

box no.

Component

terminals.

Test values.

Transponder

analogue module

(8220) .

Aro

und

the

igni

tion

key

barr

el.


yellow).

5 - 1 ( 6 -way

black).

Diagnostic

equipment :

Check the

component supply

voltage :


equipment :

Check the

continuity and


insulation of the

wires between

terminals 12 and

5 .

Connected. Clock signal :

23 - 21 ( 26 -way

yellow).

4 - 1 ( 6 -way

black).

Diagnostic

equipment :

Driver's door

open :


equipment :

Check the

continuity and

insulation of the

wires between

terminals 23 and

4.

Connected. CPH/aerial

dialogue 8 - 21

( 26 -way yellow).

3 - 1. Diagnostic

equipment :

U đ 10,1 volts.

Driver's door

open :



equipment :

Check the

continuity and

isolation of the

line between the

analogue module

and the CPH.

N.B. : Harness C.1234 for use in VALEO and SIEMENS transponder control units may be used to check

the analogue module :

XANTIA.

4.1.2 Key-in-ignition audible warning

Location of

components.


box no.

Component

terminals.

Test values.

Key-in-ignition

audible warning

(0004).

Connected. Initiate an

actuation

sequence by

means of a

diagnostic tool :

Disconnected. 7 ( 15 -way

black).

26 ( 26 -way

blue).

If not :

Earth terminal 7 :

If not :

Connected. 7 - 13 ( 15 -way 26 - 7 ( 26 -way Diagnostic


black). blue). equipment :

Checking the

audible warning

command signal :

U đ 0 volt ,

U đ U battery ,

U đ 0 volt ,

Initiate an

actuation

sequence by

means of a

diagnostic tool :

4.1.3 Instrument cluster warning lamp

Location of

components.


box no.

Component

terminals.

Test values.

Unlocking

warning lamp

(0004).


actuation

sequence by


means of a

diagnostic tool :


yellow) -

13 ( 15 -way blac

k).

8 ( 26 -way blue). If not :

26. 8. If not :

Check the

continuity and

insulation of the

wires between

terminals 26 and

8.


yellow) -

13 ( 15 -way blac

k).

8 - 7 ( 26 -way

blue).

Diagnostic

equipment :

Checking the

warning lamp

signal.

Ignition on ,

4.1.4 Open driver's door switch


Location of

components.


box no.

Component

terminals.

Test values.

Driver's door

switch (6202) .

In

doo

r's l

ock.


yellow) -

13 ( 15 -way blac

k).

6 - 4 ( 9 -way

brown).

Diagnostic

equipment :

Door open :

Driver's door

closed :


equipment :

Door closed :

4.2 Fault-finding tables

4.2.1 Symptom :

the vehicle will not start

Symptom. Remedy.

1st case. The vehicle can not be

started with any of the keys.

Refer to table 1.

2nd case. The vehicle can not be

started with one of the keys,

but can be started with the

others.

The key is faulty .


4.2.2 Table 1

Checks. Check result. Consequences.

1. Driver's door open .

Switch the ignition on,

then off (leave the ke

y in the ignition).

Ignition off :

the audible warning e

mits an intermittent so

und

The CPH has

recognised the key

identification code .

If not. Proceed to table 2.

2. Switch on the ignition. The warning lamp

lights up (for đ 1

second).

Check the petrol level

or any mechanical

problem.

The warning lamp

blinks at 2,5 Hz ,

the audible warning e

mits a continuous sou

nd

Proceed to check N°

3.

3. Check the continuity

and isolation of lines

CE and CS (*) .

Switch on the ignition

,

check the voltage of li

ne CE.

Brief drop in voltage. Proceed to check N°

4.

If not. Check the supply to

the engine ECU.

4. Enter the access code

(initialisation of the

engine management

ECU).

Access code rejected. Check that the body

computer does not

come from another

vehicle.

Access code accepted

.

Initialisation complete

d or

upted

ue.

Check that the engine

management ECU has

been properly

initialised (in the case

of a new engine ECU)

.

N.B. : CE :

engine ECU's serial input line .

The CE line is located between the engine ECU and terminal 19 of the body computer's yellow 26 -way con


nector (terminal 19 of the test connector box) .

CS :

engine ECU's serial output line .

The CS line is located between the engine ECU and terminal 6 of the body computer's yellow 26 -way conn

ector (terminal 6 of the test connector box).

4.2.3 Checking the initialisation of an engine management ECU

Before carrying out the checks

:

• driver's door open

• ignition off

• diagnostic tool disconnected

The following operations should be carried out

:

• wait 10 seconds

• switch on the ignition :

the warning lamp on the instrument cluster must come on for about one second

• switch off the ignition, then switch it on again :

the warning lamp on the instrument cluster must come on briefly for đ 0,5 seconds

CAUTION : If on each of the 2 occasions the warning lamp comes on briefly, the initialisation has been

unsuccessful.

The engine ECU state can also be checked using the diagnostic tool to read the parameters.

N.B. : This parameter may be affected if an injection ECU warning lamp on the instrument panel is

connected to the dialogue line .

Perform a test with the ignition off if the following message appears :

"no reply".

4.2.4 Table 2

Checks. Check result. Consequences.

1. Driver's door open .

Switch the ignition on,

then off (leave the ke

y in the ignition).

The audible warning is

not activated.


2.

2. Component(s) to be

checked :

key-in-ignition audible

warning.

Component working

correctly.


3.


Faulty component(s). Repair or replace the

faulty unit .


checked :

driver's door switch.

Component working

correctly.


4.


faulty unit .


checked :

transponder analogue

module.

Component working

correctly.


5.


faulty unit .

5. Initialise the keys. Access code rejected. Check that the CPH

has not been

replaced.

Access code accepted

,

initialisation not possi

ble.

Faulty component(s) :

5 Locking/unlocking and deadlocking function


5.1.1 Locking/unlocking button

Location of

components.


box no.

Component

terminals.

Test values.

Locking button .

In t

he

driv

er's

doo


yellow) -

13 ( 15 -way blac

k).

3 ( 9 -way brown)

-

Diagnostic

equipment :


r loc

k (6

202

).

Locking button

down :

Locking button up

:


equipment :

Locking button

down :

Locking button .

In t

he f

ront

pas

sen

ger'

s do

or l

ock

(62

07).


yellow) -

13 ( 15 -way blac

k).

3 ( 9 -way brown)

-

Diagnostic

equipment :

Locking button

down :

Locking button up

:



equipment :

Locking button

down :

5.1.2 Switches for locking/unlocking with a key (vehicle with deadlocking only)

Location of

components.


box no.

Component

terminals.

Test values.

Switch for locking

with a key :

in f

ront

left

lock

(62

02)

.

In t

he f

ront

righ

t loc

k (6

207

).

Connected. Locking :

17 ( 26 -way yello

w) -

13 ( 15 -way blac

k).

9 - 4 ( 9 -way

brown).

Diagnostic

equipment :

Key in locking

position :

At rest :



equipment :

Switch for

unlocking with a

key :

in f

ront

left

lock

(62

02)

.

In t

he f

ront

righ

t loc

k (6

207

).

Connected. Unlocking :

4 ( 26 -way yello

w) -

13 ( 15 -way blac

k).

5 - 4 ( 9 -way

brown).

Diagnostic

equipment :

Key in unlocking

position :

At rest :


equipment :


5.1.3 Locking motors

Location of

components.


box no.

Component

terminals.

Test values.

Locking motors .

Do

ors

(62

02 -

62

07 -

62

12 -

62

17)

.

Tail

gat

e (6

260

) .

Fu

el fil

ler fl

ap.

Connected. Unlocking :

8 - 14 ( 15 -way b

lack).

Front doors : Diagnostic

equipment :

Disconnected. Rear doors : Diagnostic

equipment :

Connected. Locking :

14 - 8 ( 15 -way b

lack).


equipment :



equipment :

Deadlocking

motors .

Do

ors

(62

02 -

62

07 -

62

12 -

62

17).

Connected. Deadlocks :

11 - 8 ( 15 -way b

lack).


equipment :


equipment :

5.2 Fault-finding

Close all the doors.

Check that the locking system is working correctly, using the remote control and each of the front door locks ,

then refer to the corresponding chapter.


5.2.1 Symptom :

locking not possible using the key

Symptom. Remedy.

1st case. The vehicle can be locked by

locking one of the doors.


2nd case. The vehicle can not be locked

from the 2 front doors.

Check :

5.2.2 Symptom :

locking not possible using the remote control

Symptom. Remedy.

1st case. Locking is possible with the

key, but not with the remote

control.

Check :

If not ,

2nd case. Locking not possible. Check :

N.B. : If the battery is discharged, the "door open" warning lamp will flash for 10 seconds at a frequency of

2,5 Hz on switching on the ignition.


5.2.3 Symptom :

immediate locking/unlocking after receiving the command

In this case ,

check

:

• the front door switches .

Refer to section 5.1.1

• the locking buttons .


• the key locking contacts .


• the locking motors .


6 Alarm function (right-hand drive vehicles in Great Britain)


6.1.1 Alarm LED

Location of

components.


box no.

Component

terminals.

Test values.

Alarm LED

(8606).


actuation

sequence by

means of a

diagnostic tool :


black).

2 ( 2 -way). If not :

If not :



black).

2 - 1 ( 2 -way). Diagnostic

equipment :

LED on :

6.1.2 Siren

Location of

components.


box no.

Component

terminals.

Test values.

Siren (8605). Connected. Initiate an

actuation

sequence by

means of a

diagnostic tool :


yellow).

3 ( 4 -way). If not ,

If not :


yellow) -

13 ( 15 -way blac

k).

3 - 4 ( 4 -way). Diagnostic

equipment :


Initiate an

actuation

sequence by

means of a

diagnostic tool :

6.1.3 Door pillar switches

Location of

components.


box no.

Component

terminals.

Test values.

Driver's door

switch (6202) .

Pa

sse

nge

r's d

oor

cont

act

swit

ch (

620

7).


yellow) 3 - 21 ( 26

-way yellow).

6 - 4 ( 9 -way

brown).

Diagnostic

equipment :

Rear right door

contact switch

(6217) .

Re

ar l

eft

doo

r co

ntac

t sw

itch

(62

12).

Disconnected. 2 - 21 ( 26 -way

yellow) 14 - 21

( 26 -way yellow).

1 - 3 ( 5 -way

brown).

Diagnostic

equipment :


6.2 Fault-finding

Symptom :

unprompted triggering.

Using the diagnostic tool ,

refer to the list giving the 15 most recent causes of the alarm going off, and check the component which appear

s the most frequently.

The most recent cause of the alarm going off is displayed first (order 1 ).

7 Initialisation procedure (initialisation)

URGENT : All new CPHs or engine ECUs fitted to a vehicle must be initialised .

Once these components have been initialised, they can never be used on a different vehicle.

CAUTION : To perform all of the initialisation procedures, it is necessary to have the access code which is recorded

on the customer's confidential card.

CAUTION : Only select the initialising procedure which relates to the specific case being dealt with .

Example :

in the event that only the CPH has been replaced, only perform an "initialisation of the CPH" and not an "initialisation

of the CPH + engine ECU".

7.1 Initialisation : keys

The initialisation procedure allows the following operations to take place

:

• addition of new keys

• addition of new remote controls

• replacement of keys

• invalidation of lost keys

N.B. : Depending on the diagnostic tool used :

the procedure may begin with either the initialisation of the keys or the initialisation of the remote controls.

CAUTION : The initialisation procedure deletes all the codes (keys and remote controls) from the body

computer's memory.

Use the diagnostic tool ,

select the menu :


"INITIALISATION OF THE KEYS".

Validate.

Enter the access code recorded on the customer's confidential card.

7.1.1 Initialisation :

transponder codes

Enter the number of keys to be initialised.

Validate.

Switch off the ignition (A).

Remove the key from the ignition.

Validate (PROXIA).

Within 15 seconds

:

• insert the key to be initialised into the ignition

• switch on the ignition

Validate (PROXIA).

A message confirms that the ignition key has been correctly initialised (according to the tool, a message will

show the number of keys already initialised or the number of the key to be initialised).

Validate (PROXIA).

Repeat the procedure with the other keys to be initialised (starting with operation A ).

Procedure completed

:

• 1st case :

press the "ENTER" button to return to the initial menu

• 2nd case :

validate with to initialise the remote controls :

see chapter 7.2

N.B. : Initialisation can take place as many times as necessary.

If the initialisation procedure fails

:

• refer to the list of error messages

• press the "ENTER" button to restart the procedure


List of error messages.

Error message. Remedy.

Invalid access code :

ELIT test unit .

Access code rejected :

PROXIA diagnostic station.

The body computer is locked by a different

access code to the one recorded on the

customer's confidential card .

Check that the CPH has not been replaced.

Key already initialised. The key in the ignition has already been

initialised .

Press key (*) to validate

Initialise a different key.

Code not received or ignition switched +

supply problem .

Ignition switched + interrupted.

Period of 15 seconds not respected ,

start the whole process again

If not

key with defective transponder or with no tra

nsponder

Defective antenna

Faulty body computer.

Code not understood .

Lack of dialogue.

The body computer cannot read the key code

correctly .

If none of the keys can be initialised

check that faulty key or transponder analogu

e module is working correctly

Ignition switched "+" present during the

procedure.

Start the whole process again :

adhere to the diagnostic tool instructions reg

arding the presence or not of ignition switche

d +.

7.1.2 Initialisation :

high frequency remote controls

Enter the number of remote controls to be initialised.

N.B. : For a CPH 0 (without remote control), the number of remote controls remains set at 0.

Validate.

Within 15 seconds (A)

:

• press the remote control locking button

• validate (PROXIA)

A message confirms that the remote control has been correctly initialised, as well as the number of remote

controls already initialised (according to the tool, a message confirms the number of the remote control to

be initialised).


Validate (PROXIA).

Repeat the procedure for the other remote controls to be initialised (starting with operation A ).

Procedure completed :

press the "ENTER" button to return to the initial menu.


:





Remote control already initialised. The remote control code has already been

initialised .

Press the "ENTER" button to restart the proc

edure

Repeat the procedure for the other remote c

ontrols to be initialised.

Remote control code not memorised :

ELIT test unit.

One of the remote control buttons was not

pressed within the required 15 seconds :

start the whole process again

peration A )

If not

battery discharged

Faulty remote control

Faulty body computer.


ELIT test unit.

Start the whole process again :

enter the access code recorded on the custo

mer's confidential card.

7.2 Initialisation : engine management ECU

New engine ECUs must be initialised .

Initialisation enables the new ECU to recognise the vehicle's ADC code.

CAUTION : When replacing the engine ECU, do not switch off the ignition before disconnecting the ECU.


select the menu :

"INITIALISATION OF THE ENGINE ECU".


Validate.


A message confirms that the initialisation procedure has been correctly carried out.

Validate to return to the initial menu.

If the initialisation procedure fails :

refer to the list of error messages.



Initialisation interrupted :

PROXIA test unit.

Problem occurs during the initialisation

procedure .

Restart the ECU initialisation procedure

If the problem reoccurs

check that the engine ECU is new and comp

atible with the immobiliser system.

Transponder initialisation fault. No key code is memorised by the body

computer :

initialise the keys before initialising the engin

e ECU.


ELIT test unit.

The body computer fitted to the vehicle is

locked by an access code which is different

from the one recorded on the customer's

confidential card .

Check that the body computer does not com

e from another vehicle.

ECU already coded or dialogue fault :

ELIT test unit.

The engine ECU does not reply or does not

accept the code 1111 .

Check that the engine ECU is new and does

not come from another vehicle

Check the conformity of the engine ECU

Check the dialogue lines with the CPH.

Coded ECU 1111 , problem with changing

the code :

ELIT test unit.

The new engine ECU accepts the code 1111

, but not the vehicle ADC code .

Check the conformity of the engine ECU.

Locking fault :

ELIT test unit.

The new engine ECU accepts the ADC code

but does not respond to the CPH locking

command .

Check the resupply control.

Unlocking fault :

ELIT test unit.

The new engine ECU accepts the ADC code

but does not respond to the CPH unlocking


command .

Check the resupply control

Check the conformity of the engine ECU.

7.3 Initialisation : body computer (CPH)

This procedure applies when replacing the CPH with a new CPH, the engine ECU remaining the same.


select the menu :

"INITIALISATION OF THE CPH".

Validate.


Enter the vehicle configuration (see chapter 7.5 ).

Validate.

Initialise the keys and the remote controls (see chapter 7.1 ).




:





Transponder initialisation fault. No key code is memorised by the body

computer .

Initialise the keys and the remote controls

Start the whole process again.


ELIT test unit.

The body computer fitted to the vehicle is

locked by an access code which is different

from the one recorded on the customer's

confidential card .

Check that the body computer does not com

e from another vehicle.


7.4 Initialisation : body computer and engine management ECU

This procedure applies when replacing the CPH and engine ECU assembly with a new CPH and engine ECU

assembly.


select the menu :

"INITIALISATION OF THE CPH AND ECU".

Validate.


Enter the vehicle configuration (see chapter 7.5 ).

Validate.

Initialise the keys and the remote controls (see chapter 7.1 ).


The CPH initialises the engine ECU (see chapter 7.2 ).



:



CAUTION : If the initialisation procedure has been interrupted :

the CPH has not been initialised .

The warning lamp on the instrument panel is not activated when the ignition is switched on.

Error message :

this procedure successively follows each of the initialisation procedures described in this chapter .

Refer to the fault message tables corresponding to the current stage.

7.5 Initialisation : configuration of the vehicle

This procedure applies when changing the CPH configuration.

The configuration allows the following functions to be activated or deactivated

:

• alarm LED

• deadlocks



select the menu :

"PROGRAMMING".

Validate.


Validate.

Configuration of the vehicle.

1. Deadlocks .

Alarm .

Pioup.

2. Alarm with deadlocking.

3. Deadlocks .

Without alarm.

4. Without alarm .

Without deadlocking.

5. Alarm .

Without deadlocking.

N.B. : The "Pioup" function warns the driver if one of the doors is open on activating the CPH alarm by briefly

setting off the alarm siren.


Date post:	29-Oct-2014
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Xantia II - Body Computer (CPH) Diagnosis

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