Jeep XJ. Manual — part 552
Symptom:
*CHIME INOPERATIVE
POSSIBLE CAUSES
INSTRUMENT CLUSTER - CHIME OPERATIVE
TEST
ACTION
APPLICABILITY
1
The Following are chime set conditions: Seat Belt, Ignition Key in w/Dr door open,
Engine Temp, Low Fuel, Overhead reset, Skim programmed.
Turn the ignition on.
Did the chime sound on when actuated, by turning the ignition on?
All
No
→
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform BODY VERIFICATION TEST - VER 1.
Yes
→
Test Complete.
88
INSTRUMENT CLUSTER
Symptom:
*ONE GAUGE NOT OPERATING PROPERLY
POSSIBLE CAUSES
PCM COMMUNICATIONS
NO VEHICLE SPEED SENSOR SIGNAL
PCM - RELATED POWERTRAIN PROBLEMS
PCM - RELATED POWERTRAIN PROBLEMS (ECT SENSOR DTC’S)
PCM - RELATED POWERTRAIN PROBLEMS (FUEL LEVEL UNIT DTC’S)
PCM - RELATED POWERTRAIN PROBLEMS (OIL PRESSURE SENSOR DTC’S)
INSTRUMENT CLUSTER
INSTRUMENT CLUSTER - WILL NOT PASS SELF TEST
TEST
ACTION
APPLICABILITY
1
Ensure the Instrument Cluster is communicating on the bus before proceeding.
Press and hold the trip/reset button on the Instrument Cluster. Turn the Ign. from
the off to the run position, wait until 1111 is displayed on the odometer, then release
the button (this will start the Instrument Cluster self test).
While the Instrument Cluster is performing it’s self test, observe the gauge that is
not operating.
The gauges should reach the following calibration points.
Speedometer: 0, 20, 55, Full
Fuel: Empty, 1/8, 1/4, Full
Volts: 8, Low end of normal, High end of normal, 18
Oil: Low, Low end of normal, High end of normal, High
Temperature: Cold, Low end of normal, High end of normal, Hot
Tachometer: 0, 1000, 3000, 6000
Did the gauge reach the calibration points?
All
Yes
→
No
→
Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
2
With the DRBIII
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.
89
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
3
Stop the self test if it was used in a previous test.
Note: Identify the faulty gauge and perform the indicated test.
Which of the following is the problem?
All
Speedometer Gauge
Oil Pressure Gauge
Refer to Powertrain symptom list for problems related to the Oil
Pressure Sensor.
Perform BODY VERIFICATION TEST - VER 1.
Temperature Gauge
Refer to Powertrain for problems related to the ECT Sensor
(DTC’s).
Perform BODY VERIFICATION TEST - VER 1.
Fuel Level Gauge
Refer to Powertrain for problems related to the FUEL LEVEL
SENDING UNIT (DTC’s).
Perform BODY VERIFICATION TEST - VER 1.
Tachometer Gauge
Refer to symptoms in the Powertrain category (or book).
Perform BODY VERIFICATION TEST - VER 1.
Voltage Gauge
Refer to symptoms in the Powertrain category (or book).
Perform BODY VERIFICATION TEST - VER 1.
4
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 same speed as the Instrument Cluster?
All
Yes
→
Refer to the Powertrain symptom list for problems related to
P-0500 NO VEHICLE SPEED SENSOR SIGNAL.
Perform BODY VERIFICATION TEST - VER 1.
No
→
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform BODY VERIFICATION TEST - VER 1.
90
INSTRUMENT CLUSTER
*ONE GAUGE NOT OPERATING PROPERLY —
Continued
Symptom List:
*CMTC AVERAGE MPH OR FUEL ECONOMY WRONG
*CMTC DISTANCE TO EMPTY INOPERATIVE OR WRONG
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *CMTC AVERAGE MPH OR
FUEL ECONOMY WRONG.
POSSIBLE CAUSES
PCM COMMUNICATIONS
NO VEHICLE SPEED SENSOR SIGNAL
CMTC - AVERAGE MPH/FUEL ECONOMY WRONG
PCM - RELATED POWERTRAIN PROBLEMS (FUEL LEVEL UNIT DTC’S)
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 Fuel Gauge is working accurately.
Is the Fuel Gauge working properly?
All
No
→
Refer to Powertrain for problems related to the FUEL LEVEL
SENDING UNIT (DTC’s).
Perform BODY VERIFICATION TEST - VER 1.
Yes
→
If there are no possible causes remaining, replace the CMTC.
Perform BODY VERIFICATION TEST - VER 1.
91
OVERHEAD CONSOLE
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст