Test Description
WARNING: This page is about a different car, the 2004 GMC Yukon XL and 2004 GMC Yukon. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number on the diagnostic table
- 2: This step replaces 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 |
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| 1 | Did you perform the Diagnostic System Check - Transfer Case? | Go to Step 2 | Go to Diagnostic System Check - Transfer Case |
| 2 | Replace the transfer case shift control module. Refer to Transfer Case Shift Control Module Replacement . Is the repair complete? |
System OK | - |