For 1990-2009 cars only
Circuit Description
At each power-up, the transfer case shift control module will check the boot loader for a valid calibration. If no calibration is found the DTC will be set, this DTC will be erased upon programming.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0558 Calibration Data Not Performed
Conditions for Running the DTC
| • | The ignition is ON. |
| • | The system voltage is 9-18 volts. |
Conditions for Setting the DTC
Calibration has not been programmed into the transfer case shift control module.
Action Taken When the DTC Sets
| • | The SERVICE 4WD indicator remains illuminated for the remainder of the current ignition cycle. |
| • | The transfer case control switch does not display the current position LED while DTC C0558 is current. |
Conditions for Clearing the DTC
| • | Program the transfer case shift control module. |
| • | Perform the Diagnostic System Check - Vehicle . |
Test Description
The number below refers to the step number on the diagnostic table.
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 | |
Did you complete the repair? | System OK | -- | |
