P0633-INVALID SKIM KEY
P0633-INVALID SKIM KEY
For a complete wiring diagram, refer to the Wiring Information.
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When Monitored:
With the ignition on.
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Set Condition:
The Powertrain Control Module (PCM) receives and invalid SKIM Key message from the Wireless Control Module (WCM).
Possible Causes |
|---|
| INCORRECT VIN PROGRAMMED IN THE PCM |
| SKIM SECRET KEY CODE NOT PROGRAMMED INTO THE PCM |
| POWERTRAIN CONTROL MODULE |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
| 1. | Turn the ignition on, engine off. |
| 2. | With the scan tool, select View DTCs in the PCM. |
Is the status Active for this DTC?
Yes
- Go To 2
No
- Perform the INTERMITTENT DTC diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
2. CHECK VIN STORED IN THE PCM
| 1. | With the scan tool, read the VIN code stored in the PCM and compare it to the vehicle. |
Does the PCM have the correct VIN stored?
Yes
- Go To 3
No
- Program the correct VIN number into the PCM.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
3. PROGRAMMING SKIM SECRET KEY CODE INTO THE PCM
| 1. | With a scan tool, erase DTCs. |
| 2. | Using the scan tool, program the SKIM secret key information into the PCM. |
| 3. | 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. |
| 4. | Allow the engine to reach normal operating temperature. |
| 5. | With the scan tool, select View DTCs. |
Did the DTC return?
Yes
- Go To 4
No
- The SKIM secret key information has been successfully programmed into the PCM. Test complete.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
| 1. | Look for any chafed, pierced, pinched, or partially broken wires. |
| 2. | Look for broken, bent, pushed out or corroded terminals. |
| 3. | Perform any Technical Service Bulletins that may apply. |
Were any problems found?
Yes
- Repair as necessary.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
No
- Replace the Powertrain Control Module in accordance with the service information.
- Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).