Circuit Description
PCM performs an internal self-test on its Random Access Memory (RAM) or read/write memory. If this self-test fails, this DTC will set.
Conditions for setting this DTC:
- Ignition voltage greater than 10 volts.
- Ignition on for 5 seconds.
- PCM is powered up.
- PCM detects an internal microprocessor integrity fault or internal RAM test fails.