DTC P0685 Acura
Powertrain Control Module (PCM) Power Control Circuit Internal Circuit Malfunction
Powertrain Control Module (PCM) Power Control Circuit Internal Circuit Malfunction
Description
When the voltage to the PCM is turned off and the PCM shuts down without the normal shut down procedure, a malfunction in the PGM-FI main relay 1 control circuit is detected. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.
Cause and Solution
Loose terminals at the IGP line connectors
PCM needs to be updated with the latest software
Video Guide
Diagnostic Info
- DTC Code: P0685
- Brand: Acura