P0633-SKIM SECRET KEY NOT STORED IN PCM
P0633-SKIM SECRET KEY NOT STORED IN PCM
For a complete wiring diagram, refer to the Wiring Information.
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When Monitored:
Ignition on.
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Set Condition:
The Secret Key information has not been programmed into the Powertrain Control Module (PCM). One Trip Fault. Three good trips to turn off the MIL.
Possible Causes |
|---|
| PROGRAMMING SECRET KEY INTO THE PCM |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
PROGRAMMING SECRET KEY INTO THE PCM
| 1. | Ignition on, engine not running. |
| 2. | With the scan tool, erase DTCs. |
| 3. | Using the scan tool, program the Secret Key information into the PCM using the MODULE PROGRAMMING procedure. (Refer to 08 - Electrical/8E - Electronic Control Modules - Standard Procedure) . |
| 4. | 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. |
| 5. | Allow the engine to reach normal operating temperature. |
| 6. | With the scan tool, select View DTCs. |
Does the DTC reset?
Yes
- Replace and program the Powertrain Control Module in accordance with the Service Information. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
- Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)
No
- The Secret Key information has been successfully programmed into the PCM. Test is complete.
- Perform the POWERTRAIN VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure)