Symptom:
P0633-SKIM KEY NOT PROGRAMMED IN PCM
When Monitored and Set Condition:
P0633-SKIM KEY NOT PROGRAMMED IN PCM
When Monitored: Ignition on.
Set Condition: The SKIM Key information has not been programmed into the PCM.
POSSIBLE CAUSES
PROGRAMMING SKIM KEY INTO PCM
VERIFY PCM PROGRAMMING
PCM
TEST ACTION APPLICABILITY
1 Ignition on, engine not running.
With the DRBIIIt, erase DTCs.
Using the DRBIIIt, program the SKIM Key information into the PCM.
Start the engine.
NOTE: If the engine will not start, crank the engine over for 15 seconds.
Crank at least 2 times with the ignition switch returning to the off position
each time.
Allow the engine to reach normal operating temperature.
With the DRBIIIt, read DTCs.
Does the DTC reset?
All
Yes → Go To 2
No → The SKIM KEY information has been succcessfully programmed
into the PCM. Test is complete.
Perform SKIS VERIFICATION.
2 NOTE: The ignition switch must be left in the off position for a minimum of
10 seconds.
Cycle the ignition switch to the off position and then back to run.
Attempt to program the PCM with the applicable information.
Start the vehicle and allow it to reach normal operating temperatures.
With the DRBIIIt, read DTCs.
Does the DTC reset?
All
Yes → Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform SKIS VERIFICATION.
No → The SKIM Key Information has been successfully programmed
into the PCM. Test is complete.
Perform SKIS VERIFICATION.
232
DRIVEABILITY - NGC
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