FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

All PRNDL Lights on In Park/Neutral

SYMPTOM:
ALL PRNDL LIGHTS ON IN PARK/NEUTRAL

POSSIBLE CAUSES
- PCI COMMUNICATION FAILURE
- START SIGNAL FROM IGNITION SWITCH "ON"
- WRONG TCM FOR APPLICATION
- WIRING OR CONNECTORS
- FAULTY MANUAL LEVER ASSEMBLY

Repair Instructions:
PCI COMMUNICATION FAILURE
Refer to Body Diagnostics for PCI Communication Failure.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
START SIGNAL FROM IGNITION SWITCH "ON"
Replace the Ignition Switch/Wiring.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
WRONG TCM FOR APPLICATION
Check TCM for correct application. Refer to Symptom List for symptom CHECK SHIFTER SIGNAL.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
WIRING OR CONNECTORS
Repair wiring or connectors.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System
FAULTY MANUAL LEVER ASSEMBLY
Replace Manual Valve Lever.
Perform Transaxle 42LE Verification TEST VER-1A Verification Test VER-1A - Transmission Control System