Test Description
The number below refers to the step number on the diagnostic table.
- 2: This step determines whether the failure is the result of a faulty transfer case shift control module or the IPC.
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Transfer Case Control Schematics Connector End View Reference: Component Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Observe the Service 4WD parameter input/output in the instrument panel cluster (IPC) Scan Tool Data List. Is the Service 4WD indicator commanded ON? |
Go to Step 4 | Go to Step 3 |
| 3 | Replace the transfer case shift control module. Refer to Control Module References
for replacement, setup and programming. Did you complete the repair? |
Go to Step 5 | - |
| 4 | Replace the IPC. Refer to Instrument Cluster Replacement (Left Hand Drive)
or Instrument Cluster Replacement (Right Hand Drive)
. Did you complete the repair? |
Go to Step 5 | - |
| 5 |
|
Go to Step 1 | System OK |