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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 71 (5.7L - DTCS P219B To P3400) >> DTC Troubleshooting >> P2AF5 Starter Relay 3 Stuck On (L2+ With DBSM) >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
OPEN FUSE (150A) IN THE FUSE ARRAY
OPEN FUSE 15 (10A) IN THE UNDER HOOD PDC (MAIN BATTERY FUSED B+ SENSE)
POOR CONNECTION AT EITHER BATTERY POSITIVE OR NEGATIVE CABLE ENDS
HIGH RESISTANCE IN EITHER BATTERY POSITIVE CABLE
HIGH RESISTANCE IN EITHER BATTERY GROUND CABLE OR GROUND LOCATION
HIGH RESISTANCE IN EITHER FUSED B+ CIRCUIT TO THE PCM
DUAL BATTERY SWITCH MODULE DBSM CONTROL CIRCUIT SHORTED TO GROUND
DUAL BATTERY SWITCH MODULE (DBSM) STUCK ON (OPEN)
FAULTY MAIN BATTERY
FAULTY AUXILIARY BATTERY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .