Circuit Description
The powertrain control module (PCM) performs an internal self-test on the random access memory (RAM) or read/write memory. If this self-test fails, this diagnostic trouble code (DTC) sets.
Conditions for Running the DTC
| • | The ignition voltage is more than 10 volts. |
| • | The ignition is ON for 5 seconds. |
Conditions for Setting the DTC
The internal RAM test fails.
Action Taken When the DTC Sets
| • | The PCM illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. |
| • | The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information in the Freeze Frame and/or Failure Records. |
Conditions for Clearing the MIL/DTC
Replace the PCM. Refer to Powertrain Control Module Replacement/Programming .
Test Description
The number below refers to the step number on the diagnostic table.
Step | Action | Values | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Powertrain On-Board Diagnostic (OBD) System Check? | -- | ||
|
Important:: The replacement PCM must be programmed. Replace the PCM. Refer to Powertrain Control Module Replacement/Programming . Is the action complete? | -- | -- | ||
3 |
Does the scan tool indicate that this test ran and passed? | -- | ||
4 | Select the Capture Info option and the Review Info option using the scan tool. Does the scan tool display any DTCs that you have not diagnosed? | -- | Go to the applicable DTC table | System OK |
