General Information
P0605 Internal Control Module Read Only Memory (ROM) Error
General Information
Component Location
General Description
Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure.
DTC Description
If the RAM in the PCM has errors or the CPU software version does not match the main CPU or real checksum does not match with the memory checksum, the PCM sets a P0605 DTC.
DTC Detecting Condition