DTC P06B8 (PCM) - Internal Control Module Non-Volatile Random Access Memory (NVRAM) Error
DTC DESCRIPTION P06B8 (PCM) - INTERNAL CONTROL MODULE NON-VOLATILE RANDOM ACCESS MEMORY (NVRAM) ERROR
| Description: This DTC sets when a concern with the ability of the PCM to correctly store permanent DTCs is present. | |||
| Possible Causes: | |||
| Diagnostic Aids:
Check for other DTCs and diagnose those first. Make sure to check for aftermarket performance products. If no other DTCs are present, check for intermittent VPWR and PWRGND circuit concerns at the PCM, or a low voltage battery charging system concern. If an updated calibration is available, update the calibration to the latest level. Clear the DTCs. If an updated calibration is not available, clear the KAM, clear the DTCs, then turn the ignition OFF. Start the engine. Allow the engine to run for ten seconds and then turn the ignition OFF for 10 seconds. Turn the ignition ON and repeat the self-test. If the code is not retrieved again, the system is operating normally and the vehicle can be returned to the customer. If the code is retrieved again, replace the PCM. Refer to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) , Programming the VID Block for a Replacement PCM. |
|||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | Refer to the Description, Possible Causes and Diagnostic Aids for the DTC. | ||