codigos presentes en d6m 168f04 190f02 298f02 299f13 468f08 722f03

8/10/2019 codigos presentes en d6m 168f04 190f02 298f02 299f13 468f08 722f03

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Shutdown SIS

Previous Screen

Product: TRACK-TYPE TRACTOR

Model: D6M TRACK-TYPE TRACTOR 3WN

Configuration: D6M & D6M LGP Track-Type Tractors 3116 Engine 3WN00001-UP (MACHINE)

Troubleshooting561N, 572R and 572R Series II Pipelayers and D10R, D11R, D5M, D5N, D6M, D6N,D6R, D6R Series II, D7R, D7R Series II and D8R Series II Track-Type TractorsPower Train Electronic Control SystemMedia Number -SENR8367-18 Publication Date -01/01/2012 Date Updated -20/01/2012

i01785884

MID 113 - CID 0168 - FMI 04

SMCS - 1406-038

Conditions Which Generate This Code:

This diagnostic code is recorded when the system voltage is below 21.3 VDC. If the voltagedecreases to a value that is below 18 VDC, the brakes will be applied and the transmission willshift into neutral.

The possible causes of this diagnostic code are listed below:

A charging system component has failed.

The wiring in the machine harness has failed.

The ECM has failed. This is unlikely.

Note: On D5M and D6M machines, check the air inlet heater for a short to +battery.

Test Step 1. CHECK THE BATTERY VOLTAGE.

A. Start the engine and run at high idle for several minutes.

B. Measure the battery voltage at the battery posts.

Expected Result:

Battery voltage should be greater than 21.3 VDC.

Results:

OK - Battery voltage is greater than 21.3 VDC. Battery voltage is correct. Proceed to Test

Step 2.

NOT OK - Battery voltage is not greater than 21.3 VDC.

Pgina 1 de 3D6M & D6M LGP Track-Type Tractors 3116 Engine 3WN00001-UP (MACHINE)...

01/12/2014https://127.0.0.1:446/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/siswe...


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Repair: The charging system is not correct. Check the charging system. See SystemOperation, SENR2947, "Starting and Charging System".

Stop.

Test Step 2. CHECK THE SYSTEM VOLTAGE AT THE ECM.

A. The engine must still be running at high idle.

B. DO NOT DISCONNECT the machine harness from the ECM. At connector "J1" of theECM, prepare to make a voltage measurement by using the 7X-1710 Multimeter Probe.

C. At the machine harness for the ECM, insert the probe into the back of connector "J1".Measure the voltage (VDC) between J1-1 ( 140-BU) and J1-2 ( 202-BK).

Expected Result:

Voltage should be greater than 21.3 VDC.

Results:

OK - Voltage is greater than 21.3 VDC. Battery voltage is correct. Proceed to Test Step 3.

NOT OK - Voltage is not greater than 21.3 VDC.

Repair: The machine harness is not correct. Repair the machine harness or replace themachine harness.

Stop.

Test Step 3. CHECK IF THE DIAGNOSTIC CODE IS STILL ACTIVE.

A. Remove connectors "J1" and "J2" from the ECM. Inspect the contacts and clean the contactsof the harness connectors.

B. Reconnect all harness connectors.

C. Turn the key start switch to the ON position.

D. Enter service mode of the Caterpillar Monitoring System and clear all inactive diagnosticcodes.

E. Operate the machine.

F. Determine if CID 0168 FMI 04 is present.

Expected Result:

CID 0168 FMI 04 is present.

Results:

YES -CID 0168 FMI 04 is present.

Repair: Exit this procedure and perform the diagnostic code procedure again. If the problem persists, the ECM may have failed. Prior to replacing the ECM, always contact




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your dealerships Technical Communicator for possible consultation with Caterpillar. Thisconsultation may greatly reduce repair time. If the cause of the diagnostic code is not found,replace the power train ECM. See the Testing and Adjusting, "Electronic Control Module(ECM) - Replace".

Stop.

NO - CID 0168 FMI 04 is not present.

Repair: The diagnostic code is NOT present. The problem does not exist at this time. Theinitial problem was probably caused by a poor electrical connection or a short at one of theharness connectors that was disconnected and reconnected. Resume normal machineoperation.

Stop.

Copyright 1993 - 2014 Caterpillar Inc.

All Rights Reserved.Private Network For SIS Licensees.

Mon Dec 1 11:08:09 EST 2014




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Shutdown SIS

Previous Screen





i01785990

MID 113 - CID 0190 - FMI 02

SMCS - 1907-038


Illustration 1 g00600204

Schematic of the Engine Speed Sensor

This diagnostic code is for the engine speed sensor.

This diagnostic code is recorded when the ECM reads the signal from the engine speed sensor andthe ECM determines that the signal is erratic, intermittent or incorrect. This is determined when




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the ECM compares the signal from the engine speed sensor to the signal from the torque converter output speed sensor. A diagnostic code is recorded when the signal from the engine speed sensor is below the dropout value and the engine speed is above low idle. This problem prevents theECM from calculating the ratio of the torque converter.

Note: The engine must be running. The engine speed signal must be received from the torqueconverter output speed sensor in order for the ECM to display this diagnostic code as being

present.

Test Step 1. CHECK THE RESISTANCE OF THE SENSOR.

A. Turn the key start switch to the OFF position.

B. Disconnect the machine harness from the speed sensor.

C. Measure the resistance between the two contacts of the connector for the speed sensor.

Expected Result:

The resistance measurement should be between 110 ohms and 200 ohms.

Results:

OK - The resistance measurement is between 110 ohms and 200 ohms. The speed sensor has not failed. Proceed to Test Step 2.

NOT OK - The resistance measurement is not between 110 ohms and 200 ohms.

Repair: The speed sensor has failed. Replace the sensor. Adjust the speed sensor properly

when the sensor is being installed. See Testing and Adjusting, "Speed Sensor - Adjust".Verify that the new sensor corrects the problem.

Stop.

Test Step 2. CHECK THE RETURN CIRCUIT.

A. The machine harness remains disconnected from the sensor.

B. Turn the key start switch to the OFF position.

C. At the machine harness connector for the sensor, measure the resistance between contact 1(G939-PK) and frame ground.

Expected Result:

The resistance should measure 20 ohms or less.

Results:

OK - The resistance measures 20 ohms or less. The return circuit is correct. Proceed to TestStep 3.

NOT OK - The resistance does not measure 20 ohms or less.

Repair: The return circuit (G939-PK) in the machine harness has excessive resistance(open). Repair the machine harness or replace the machine harness.




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Stop.

Test Step 3. CHECK THE SIGNAL CIRCUIT FOR AN OPEN IN THE MACHINEHARNESS.

A. At the machine harness connector for the speed sensor, place a jumper between the twocontacts.

B. Disconnect the machine harness connectors J1 and J2 from the ECM.

C. At the machine harness connectors J1 and J2, measure the resistance from J2-38 (sensor signal) to J1-15 (the return circuit) and to J1-16 (the return circuit).

Expected Result:

There should be less than 5.0 ohms resistance.

Results:

OK - There is less than 5.0 ohms resistance. The signal circuit in the machine harness iscorrect. Proceed to Test Step 4.

NOT OK - There is not less than 5.0 ohms resistance.

Repair: The signal circuit (450-YL) is open in the machine harness. Repair the machineharness or replace the machine harness.

Stop.

Test Step 4. CHECK THE SIGNAL CIRCUIT FOR A SHORT.

A. If a jumper was used in a previous step, remove the jumper.

B. Reconnect the machine harness to the speed sensor.

C. At the harness connector J1 and harness connector J2, measure the resistance between J2-38(450-YL) and all sources of positive voltage and ground. The possible sources of positivevoltage are contacts J1-1, J1-4, J1-6, J1-8, J1-10, J1-11, J1-12, J1-17, J1-18, J1-40, J2-1, J2-2, J2-7, J2-8, J2-13, J2-19, and J2-37. The possible sources of ground are contact J1-2,contact J1-5, contact J1-7, contact J1-15, contact J1-16, contact J2-3, and frame ground.

Expected Result:

Each resistance should be greater than 5000 ohms.

Results:

OK - Each resistance is greater than 5000 ohms. The machine harness is correct. Proceed toTest Step 5.

NOT OK - Each resistance is not greater than 5000 ohms.

Repair: There is a short in the machine harness. The short is between the signal circuit (450-YL) and the circuit that has a low resistance measurement. Repair the machine harness or replace the machine harness.




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Results:

YES - The diagnostic code indicator shows "SERV CODE".

Repair: Replace the speed sensor.

Proceed to Test Step 7.

NO - The diagnostic code indicator does not show "SERV CODE".

Repair: The diagnostic code is NOT present. Adjustment of the speed sensor corrected thefailure.

Stop.


A. Remove connector J1 and connector J2 from the ECM. Inspect the contacts and clean the

contacts of the harness connectors.



D. Enter service mode of the Caterpillar Monitoring System. Put the CID 0190 FMI 02diagnostic code on hold.



Expected Result:


Results:

YES - CID 0190 FMI 02 is present.

Repair: Exit this procedure and perform the diagnostic code procedure again. If the problem persists, the ECM may have failed. Prior to replacing an ECM, always contact your

dealerships Technical Communicator for possible consultation with Caterpillar. Thisconsultation may greatly reduce repair time. See the Testing and Adjusting, "ElectronicControl Module (ECM) - Replace".

Stop.


Repair: The problem does not exist at this time. The new speed sensor corrected the problem. Resume normal machine operation.

Stop.

Mon Dec 1 11:10:01 EST 2014




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All Rights Reserved.

Private Network For SIS Licensees.




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Shutdown SIS

Previous Screen





i01786222

MID 113 - CID 0298 - FMI 02

SMCS - 1435-038-P9



Schematic of the Service Brake Pedal Switch

This diagnostic code is for the service brake pedal switch.

This diagnostic code is recorded when the status of the service brake pedal switch is wrong. Theswitch closes the circuit between the battery and the secondary brake solenoid when the service




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brake pedal is fully pressed. A diagnostic code is recorded when the ECM detects an open circuitand the switch is near the floor.

The possible causes of this diagnostic code are listed below:

The Signal circuit (G731-GY) is open or shorted.

+Battery wire (198-RD) is open.

The switch is not adjusted correctly.

The switch has failed.

The ECM has failed. This is unlikely.

System Response:

The diagnostic code causes the backup circuit for the engagement of the brakes from the service

brake pedal to not function. The indicator for the brake on the Caterpillar Monitoring System willFLASH. The service brake will continue to operate correctly.

Note: A diagnostic code for the service brake pedal position sensor (CID 0468) can affect thestatus of CID 0298 FMI 02. Also, check for a problem with the electrical system (CID 0168).Check for any diagnostic codes for the secondary brake solenoid (CID 0722). Clear CID 0168diagnostic code, CID 0468 diagnostic code or CID 0722 diagnostic code before you proceed.

Note: The status of the service brake pedal switch is updated only when the brake pedal is pressed. In order to correctly determine the status of the switch, turn the keyswitch to the ON position while the brake pedal is released. Then, press the brake pedal completely. Use this same

procedure in order to clear the diagnostic code after repairs have been made.

Test Step 1. CHECK THE BATTERY VOLTAGE FOR THE SWITCH.

A. Turn the key start switch to the ON position.

B. Disconnect the machine harness from the connector of the switch.

C. At the machine harness, measure the voltage between contact 1 and frame ground.

Expected Result:

The voltage should be greater than 22 VDC.

Results:

OK - The voltage is greater than 22 VDC. Proceed to Test Step 2.

NOT OK - The voltage is not greater than 22 VDC.

Repair: There is an open circuit or there is a short circuit. Check the fuse for the dumpvalve. Check for an open circuit or short circuit in wire 198-RD from the fuse for the dumpvalve to the switch. Repair the cause of the open circuit or the short circuit.

Stop.

Test Step 2. CHECK THE SIGNAL CIRCUIT FOR A SHORT TO GROUND.




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A. The machine harness remains disconnected from the switch.

B. Turn the key start switch to the OFF position.

C. Disconnect the machine harness from the secondary brake solenoid.

D. Disconnect the machine harness connectors J1 and J2 from the ECM.

E. At machine harness connector J1 and J2, measure the resistance from contact J1-8 (solenoidsignal) to all possible sources of ground. The possible ground sources are contact J1-2,contact J1-5, contact J1-7, contact J1-15, contact J1-16, contact J2-3 and frame ground.

Expected Result:


Results:

OK - Each resistance is greater than 5000 ohms. The machine harness is not shorted toground. Proceed to Test Step 3.

NOT OK - Each resistance is not greater than 5000 ohms.

Repair: There is a short in the machine harness. The short is between the signal circuit for the solenoid J1-8 (G731-GY) and a ground source. The possible ground sources are contactJ1-2 (202-BK), contact J1-5 ( 202-BK), contact J1-7 (975-WH), contact J1-15 (G939-PK),contact J1-16 (G939-PK), contact J2-3 (975-WH) and frame ground. Repair the machineharness or replace the machine harness.

Stop.Test Step 3. CHECK THE SIGNAL CIRCUIT FOR AN OPEN.

A. The machine harness remains disconnected from the switch.

B. At the machine harness connector for the switch, place a jumper from contact 2 (G731-GY)to frame ground.

C. At machine harness connector J1, measure the resistance from contact J1-8 (solenoid signal)to frame ground.

Expected Result:

There should be less than 5.0 ohms of resistance.

Results:

OK - There is less than 5.0 ohms of resistance. Proceed to Test Step 4.

NOT OK - There is not less than 5.0 ohms of resistance.

Repair: There is an open circuit in the machine harness. The open is in wire G731-GY of

the machine harness. Repair the machine harness or replace the machine harness.

Stop.




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Test Step 4. CHECK THE OPERATION OF THE SWITCH.

Note: The state of the switch should change within a certain range of motion of the service brake pedal position sensor. Component Data Display Mode is used in order to compare the state of theswitch to the position of the sensor. When the Component Data Display Mode is entered and CID0468 (brake pedal sensor) is selected, the duty cycle of the sensor and the state of the switch areshown at the same time.

A. If a jumper was used in a previous step, remove the jumper.



D. Enter component data display mode and select CID 0468. The left side of the display showsthe state of the switch ("O" or "C"). The right side of the display shows the duty cycle of thesensor ("000" to "100"). Such as "O 018", the switch is open and the sensor has a duty cycleof 18%.

E. While the brake pedal is fully released, record the value for the duty cycle of the sensor.

F. Slowly depress the pedal until the state of the switch changes from "O" to "C". Record thevalue of the duty cycle of the sensor.

Note: If the display does not change from "O" to "C", the switch is too far out of adjustmentor the switch has failed. Manually adjust the switch in order to change the state of the switchwhen the pedal is fully pressed. The state of the switch does not change when the switch ismanually adjusted. The switch has failed. Replace the switch.

G. With values that were recorded in the previous steps, calculate the difference of the values.The sign of the calculated value is not important.

Expected Result:

The calculated value must be within specifications. The value should be in the range that is listed below:

For the D5M, D6M, D6R, and D7R, the value should be 15 to 21.

For the D8R, the value should be 18 to 20.

For the D10R and D11R, the value should be 14 to 16.

Results:

OK - The value is within the specified range. Proceed to Test Step 5.

NOT OK - The value is not within the specified range.

Repair: Adjust the trip point of the switch through the hole in the front of the pedal housinguntil the state of the switch changes within the specified range.

Stop.





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A. Clean the contacts of the harness connectors.






Expected Result:


Results:

YES - CID 0298 FMI 02 is present.

Repair: Exit this procedure and perform the diagnostic code procedure again. If the problem persists, the ECM may have failed. Prior to replacing an ECM, always contact your dealerships Technical Communicator for possible consultation with Caterpillar. Thisconsultation may greatly reduce repair time. See the Testing and Adjusting, "ElectronicControl Module (ECM) - Replace".

Stop.


Repair: The problem does not exist at this time. The initial problem was probably caused by a poor electrical connection or a short at one of the harness connectors that wasdisconnected and reconnected. Resume normal machine operation.

Stop.




Mon Dec 1 11:11:37 EST 2014




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Shutdown SIS

Previous Screen





i01371203

MID 113 - CID 0299 - FMI 13

SMCS - 5737-038-T3



Schematic of the Position Sensor (Direction Selector)

This diagnostic code is for the Position Sensor (Direction Selector).

This diagnostic code is recorded when the ECM determines that the position sensor for thedirection of the transmission is out of calibration.




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Test Step 1. PERFORM THE CALIBRATIONS.

A. Proceed to Testing and Adjusting, "Calibrations". Perform the calibration for theTransmission Lever Position Sensor (Submode 22).

Expected Result:

Once sensor calibrations have been performed, this diagnostic code will disappear.

Results:

OK - The diagnostic code disappeared. Resume normal machine operation. Stop.

NOT OK - The diagnostic code did not disappear.

Repair: The calibrations were not performed correctly. Perform the calibrations again.

Stop.




Mon Dec 1 11:12:01 EST 2014




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Shutdown SIS

Previous Screen





i04315249

MID 113 - CID 0468 - FMI 08

SMCS - 4809-038-P9



Schematic of the Position Sensor of the Service Brake Pedal




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Schematic of the Position Sensor of the Service Brake Pedal for D6R Series II, D7R Series II and D8R Series IImachines

This diagnostic code is recorded when the ECM reads the duty cycle of the sensor as being out of range.

The position sensor is a PWM sensor that operates at a frequency of approximately 5 kHz. Thesensor has an operating duty cycle of 3.5% to 94%.

The possible causes of this condition are listed below:

The signal circuit is shorted to the +battery circuit or shorted to ground intermittently.

The signal circuit is open intermittently or the sensor is disconnected.

The sensor may have failed.

The ECM may have failed. This is unlikely.

Note: This diagnostic code is usually an intermittent condition. The diagnostic code may be activeor the diagnostic code may not be active.

Note: This procedure can cause new diagnostic codes to be recorded. Ignore these createddiagnostic codes. When the procedure is completed, clear the created diagnostic codes.

Test Step 1. CHECK FOR POWER AT THE SENSOR.

A. Do not disconnect the harness connector from the sensor.

B. At the back of the harness connector for the sensor, insert a 7X-1710 Multimeter Probealong contact A (wire 140-BU) for the voltage supply.

C. Turn the key start switch and the disconnect switch to the ON position.




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D. Measure the voltage from contact A (wire 140-BU) to contact B (wire G939-PK).For D6R Series II, D7R Series II and D8R Series II, measure the voltage from contact A(wire 140-BU) to contact B (wire 202-BK).

Expected Result:

The voltage is between 9 to 32 VDC.

Results:

OK - The voltage is between 9 to 32 VDC. Proceed to Test Step 3.

NOT OK - The voltage is not between 9 to 32 VDC. The circuit is open.

Repair: Repair the machine harness or replace the machine harness.

STOP

Test Step 2. CHECK THE SIGNAL CIRCUIT OF THE SENSOR.

A. Turn the key start switch and the disconnect switch to the OFF position.

B. At the harness connector for the sensor, remove the 7X-1710 Multimeter Probe from contactA and insert the probe along the signal wire (contact C).

C. At the back of the harness connector for the sensor, insert the 7X-1710 Multimeter Probealong the ground wire (contact B).

D. Turn the disconnect switch and the key start switch to the ON position.

E. Monitor the signal of the sensor with the 146-4080 Digital Multimeter .

F. Without disconnecting the sensor or the hardware that is associated with the sensor from themachine, take the sensor through the full operating range of the sensor.

Expected Result:

The signal of the sensor responds in the manner that is described at the beginning of this procedure.

Results:

OK - The signal of the sensor responds correctly. The sensor is operating correctly. Proceedto Test Step 3.

NOT OK - The signal of the sensor does not respond correctly. The sensor is NOToperating correctly.

Repair: Replace the sensor.

STOP

Test Step 3. CHECK THE SIGNAL CIRCUIT AT THE ECM.A. Turn the key start switch and the disconnect switch to the OFF position.




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B. Insert the 7X-1710 Multimeter Probes into the back of the ECM connector along J2-18(wire F790-BR) and J1-16 (wire G939-PK).For D6R Series II, D7R Series II and D8R Series II, insert the probes along J2-18 (wireF790-BR) and J1-2 (wire 202-BK).

C. Turn the disconnect switch and the key start switch to the ON position.

D. Monitor the signal of the sensor with the 146-4080 Digital Multimeter .

E. Without disconnecting the sensor or the hardware that is associated with the sensor from themachine, take the sensor through the full operating range of the sensor.

Expected Result:

The signal of the sensor responds in the manner that is described at the beginning of this procedure.

Results:

OK - The signal of the sensor responds correctly. The sensor is operating correctly. Proceedto Test Step 4.

NOT OK - The signal of the sensor does not respond correctly. The harness has failed.


STOP

Test Step 4. CHECK THE SIGNAL CIRCUIT FOR A SHORT IN THE HARNESS.

A. The key start switch and the disconnect switch remain in the OFF position.

B. Disconnect the machine harness connectors from the sensor and the ECM.

C. Measure the resistance between contact J2-18 (wire F790-BR) and all contacts that are usedin the machine harness connectors for the ECM.

Expected Result:

The resistance is greater than 5000 ohms.

Results:

OK - The resistance is greater than 5000 ohms. The circuit is correct. Proceed to Test Step5.

NOT OK - The resistance is less than 5 ohms. The signal circuit is shorted to another circuitin the harness.


STOP

Test Step 5. CHECK IF THE DIAGNOSTIC CODE REMAINS.

A. Inspect the harness connectors and clean the contacts of the machine harness connectors.




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Shutdown SIS

Previous Screen





i01786417

MID 113 - CID 0722 - FMI 03

SMCS - 5479-038-BRK



Schematic of the Secondary Brake Solenoid

This diagnostic code is recorded when the voltage of the solenoid circuit is above normal. The brakes will not disengage and the machine will not move.




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Note: Ensure that CID 0722 FMI 03 is on hold and that the fault present indicator shows "SERVCODE". In order to correctly determine the status of the fault present indicator, turn the keyswitchON while the brake pedal is completely released. Completely depress the pedal and release the

pedal again. The fault present indicator will only show "SERV CODE" for CID 0722 FMI 03when the pedal is released. This will happen only after the pedal has been cycled completely sincethe last powerup. Use the same procedure in order to clear the diagnostic code after repairs have

been made.Test Step 1. CHECK THE SIGNAL CIRCUIT OF THE SOLENOID FOR SHORT TO+BATTERY.

A. Turn the key start switch to the OFF position.

B. Ensure that the service brake pedal is NOT depressed near the floor.

C. Disconnect the machine harness from the solenoid.

D. Disconnect the machine harness connectors J1 and J2 from the ECM.

E. At machine harness connector J1 and J2, measure the resistance from the J1-8 (solenoidsignal) to all possible sources of +battery. The possible sources of positive voltage arecontacts J1-1, J1-4, J1-6, J1-10, J1-11, J1-12, J1-17, J1-18, J1-40, J2-1, J2-2, J2-7, J2-8, J2-13, J2-19, and J2-37.

Expected Result:


Results:

OK - The machine harness is correct. Proceed to test step 2.

NOT OK - There is a short in the machine harness.

Repair: The short is between wire G731-GY(solenoid signal) and the circuit with the lowresistance measurement. Repair the machine harness or replace the machine harness.

Stop.

Test Step 2. CHECK THE OPERATION OF THE SERVICE BRAKE SWITCH.

Note: The state of the service brake switch should change within a certain range of motion of theservice brake pedal. Component Data Display Mode is used in order to compare the state of theswitch to the position of the sensor. When you are in the Component Data Display Mode and CID0468 is selected, the duty cycle of the sensor and the state of the switch are shown at the sametime.

A. Reconnect all harness connectors.

B. Turn the key start switch to the ON position.

C. Enter the component data display mode and select CID 0468. The left side of the displayshows the state of the switch ("O" or "C"). The right side of the display shows the dutycycle of the sensor ("000" to "100"). For example, a display of "O 018" indicates that theswitch is open and the sensor has a duty cycle of 18%.




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D. Record the value of the duty cycle for the sensor while the brake pedal is fully released.

E. Slowly depress the pedal until the state of the switch changes from "O" to "C". Record thevalue of the duty cycle of the sensor.

Note: If the display does not change from "O" to "C", the switch is too far out of adjustmentor the switch is faulty. Adjust the switch manually in order to change the state of the switchwhen the pedal is fully depressed. Continue with this procedure. If the state of the switchdoes not change, the switch is faulty. Replace the switch.

F. Calculate the difference between the values that were recorded in step "2.d" and step "2.e".The result of the calculation is called the differential value. The sign of the value that iscalculated is of no importance.

Expected Result:

The difference in the value of step "2.f" must be within specifications. The differential value isdescribed in the following list:

For the D5M, D6M, D6R and D7R the differential value is 15 to 21.

For the D10R and D11R the differential value is 14 to 16.

Results:

OK - Proceed to test step 3.

NOT OK - The differential value does not fall within the specified range.

Repair: Adjust the trip point for the switch through the hole in the front of the pedalhousing. Adjust the switch until the state of the switch changes within the specified range.

Stop.

Test Step 3. DETERMINE IF THE DIAGNOSTIC CODE IS STILL ACTIVE.

A. Inspect the contacts and clean the contacts of the harness connectors.




E. Operate the machine. Be sure to use full range of the brake pedal during operation.

F. Stop the machine and release the service brake pedal.

G. Determine if the diagnostic code is present.

Expected Result:

The diagnostic code is present. "SERV CODE" is showing.

Results:




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YES - The problem has not been corrected. The ECM has failed.

Repair: Exit this procedure and perform the diagnostic code procedure again. If the problem persists, the ECM may have failed. Prior to replacing an ECM, always contact your dealerships Technical Communicator for possible consultation with Caterpillar. Thisconsultation may greatly reduce repair time. See the Testing and Adjusting, "ElectronicControl Module (ECM) - Replace".

Stop.

NO - The diagnostic code is NOT present. The problem does not exist at this time. Theinitial problem was probably caused by a poor electrical connection or a short at one of theharness connectors that was disconnected and reconnected. Resume normal machineoperation. Stop.




Mon Dec 1 11:13:37 EST 2014


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codigos presentes en d6m 168f04 190f02 298f02 299f13 468f08 722f03

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