Powertrain Control Module (PCM) Reset
DescriptionAll OBDII scan tools support the PCM reset.
The PCM reset allows the scan tool to command the PCM to clear all emission-related diagnostic information. When resetting the PCM, a DTC P1000 will be stored in the PCM until all the OBD II system monitors or components have been tested to satisfy a drive cycle, without any other faults occurring.
The following events occur when a PCM reset is performed
- Clears the number of DTCs.
- Clears the DTCs.
- Clears the freeze frame data
- Clears diagnostic monitoring test results.
- Resets status of the OBD II system monitors.
- Sets DTC P1000.
NOTE: This function is performed only after retrieval of continuous DTCs.