DTC 85

Diagnostic Trouble Code (DTC) 85 Will Be Stored When: an invalid program is detected by the Powertrain Control Module (PCM). Check that all connections are fully inserted in the socket. If OK, reprogram the PCM. If PCM will not reprogram, replace PCM.

Notice: Replacement PCMs must be reprogrammed. It is also necessary to transfer the Knock Sensor (KS) module when replacing the PCM. To prevent possible electrostatic discharge damage to the PCM, do not touch the component leads.