Step
| Action
| Value(s)
| Yes
| No
|
|
Important: In order to avoid misdiagnosis, check for powertrain control module (PCM)
diagnostic trouble codes (DTCs). Refer to Engine Controls.
|
1
|
- Disconnect the powertrain control module (PCM) connector
C2 (V8 VIN G) or C1 V6 VIN K).
- Connect a 10A fused jumper between the PCM connector circuit 817
and ground.
- Disconnect the instrument cluster.
- Connect a test lamp between the instrument cluster terminal A3
and terminal B8.
- Turn the ignition switch to the RUN position.
Does the test lamp light?
| --
|
Go to Step
2
|
Go to Step 3
|
2
|
- Test circuit 817 for a poor connection at the PCM and the instrument
cluster.
- If the connections are OK, replace the instrument cluster. Refer
to
Instrument Cluster Replacement
.
Is the repair complete?
| --
| System OK
| --
|
3
| Repair the open or poor connection in circuit 817 between
the instrument cluster and the PCM.
Is the repair complete?
| --
| System OK
| --
|
