P1602

P1602 PCM NOT PROGRAMMED

WHEN MONITORED
Ignition on and battery voltage greater than 10 volts.

SET CONDITION
The PCM has not been programmed.

POSSIBLE CAUSES
- PCM

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Initial Inspection and Diagnostic Overview

Diagnostic Test

1. PCM PROGRAMMED

Ignition on, engine not running.
With a scan tool, erase DTCs.
With a scan tool program the PCM.
Start the engine.
Allow the engine to reach normal operating temperature.
With a scan tool, read DTCs.

Q: Does the DTC reset?

YES: Replace and program the Powertrain Control Module. Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test
NO: The PCM has been successfully programmed. Test is complete. Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test