Jeep XJ. Manual — part 555
TEST
ACTION
APPLICABILITY
4
If there are no possible causes remaining, view repair.
All
Repair
Replace the CMTC.
Perform BODY VERIFICATION TEST - VER 1.
100
OVERHEAD CONSOLE
*CMTC INCORRECT TEMP READING —
Continued
Symptom:
*CMTC TRIP ODOMETER INCORRECT OR INOPERATIVE
POSSIBLE CAUSES
PCM COMMUNICATIONS
NO VEHICLE SPEED SENSOR SIGNAL
TRIP ODOMETER INOPERATIVE/WRONG
TEST
ACTION
APPLICABILITY
1
With the DRB III
t select: Body, Electro/Mech Cluster, System Test; then read the
PCM monitor status.
Does the DRBIII
t display PCM ACTIVE ON THE BUS?
All
Yes
→
No
→
Refer to symptom NO RESPONSE FROM POWERTRAIN CON-
TROL MODULE in the Communications category.
Perform BODY VERIFICATION TEST - VER 1.
2
Raise all four wheels off the ground and properly support the vehicle.
Start the engine.
Put the transmission in a forward gear.
With the DRB III
t, read the VSS (Vehicle Speed Signal) status while the driven
wheels are moving forward.
Does the DRB III
t display the approximate wheel speed ?
All
Yes
→
No
→
Refer to the Powertrain symptom list for problems related to
P-0500 NO VEHICLE SPEED SENSOR SIGNAL.
Perform BODY VERIFICATION TEST - VER 1.
3
Verify that the symptom still exists.
Is the symptom present now?
All
Yes
→
If there are no possible causes remaining, replace the CMTC.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Test Complete.
101
OVERHEAD CONSOLE
Symptom:
*ENABLE/DISABLE HORN CHIRP
POSSIBLE CAUSES
ENABLE/DISABLE HORN CHIRP
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Open the driver window and close all doors
Hold the lock button on the RKE transmitter down for 5 seconds.
Continue holding the lock button and press the unlock button.
View repair options
All
Repair
To change back, repeat the procedure again.
102
POWER DOOR LOCKS/RKE
Symptom:
*ILLUMINATED ENTRY INOPERATIVE
POSSIBLE CAUSES
CHECKING D00R LOCKS WITH RKE
COURTESY LAMPS OPERATIONAL
COURTESY LAMP DRIVER CIRCUIT OPEN
RKE MODULE - ILLUMINATED ENTRY INOPERATIVE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Check the operation of the Door Lock/Unlock with the RKE Transmitter.
Do the Power Door Locks operate with the RKE Transmitter?
All
Yes
→
No
→
Refer to symptom list for problems related to the Remote Keyless
Entry Inoperative.
Perform BODY VERIFICATION TEST - VER 1.
2
Operate Courtesy Lamps with the Doors and with the Dash switch.
Do the Courtesy Lamps operate properly?
All
Yes
→
No
→
Refer to Service Information for the related symptom.
Perform BODY VERIFICATION TEST - VER 1.
3
Disconnect the RKE Module harness connector.
Connect a jumper wire between Courtesy Lamps Driver circuit and ground.
Did the Courtesy Lamps illuminate?
All
Yes
→
Replace the Remote Keyless Entry Module
Perform BODY VERIFICATION TEST - VER 1.
No
→
Repair the Courtesy Lamps Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
103
POWER DOOR LOCKS/RKE
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