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Home >> Jeep >> 2005 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 488 (Powertrain Diagnostic Procedures - Gas) >> Diagnostic Information And Procedures >> DRIVEABILITY - NGC - Diagnostic Tests >> P1602-Pcm Not Programmed >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
P1602-PCM NOT PROGRAMMED DIAGNOSTIC TEST REFERENCE

TEST ACTION APPLICABILITY
1 Ignition on, engine not running.
With the DRBIII®, erase DTCs.
With the DRBIII® flash the PCM per Service Information.
Start the engine.
Allow the engine to reach normal operating temperature.
With the DRBIII®, read DTCs.
Does the DTC reset?
Yes --> Replace and program the Powertrain Control Module per Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1 .
No --> The PCM has been successfully flashed. Test is complete.
Perform POWERTRAIN VERIFICATION TEST VER - 1 .
All