P1602

SYMPTOM
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. Scan Tool Testing and Procedures

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.
Does the DTC reset?
Yes>> Replace and program the Powertrain Control Module per Service Information. Perform (NGC) POWERTRAIN VERIFICATION TEST VER-1. Powertrain Verification Test - Ver 1
No>> The PCM has been successfully programmed. Test is complete. Perform (NGC) POWERTRAIN VERIFICATION TEST VER-1.