Test Description
WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
- 2: This step has the technician attempt to reprogram the transfer case shift control module.
- 3: This step has the technician replace and reprogram the transfer case shift control module.
DTC C0550
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Transfer Case Control Schematics Connector End View Reference: Transfer Case Control Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Attempt to reprogram the transfer case shift control module. Refer to Control Module References
for replacement, setup, and programming. Does the DTC set after programming? |
Go to Step 3 | System OK |
| 3 | Replace the transfer case shift control module. Refer to Control Module References
for replacement, setup, and programming. Perform the Clutch Reset Procedure. Refer to Transfer Case High/Low Clutch Reset . Did you complete the repair? |
System OK | - |