LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chrysler >> 2007 >> Pacifica Base, 4.0 X >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0645 To P1653 >> P0685-ASD-Main Control Circuit >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

Possible Causes 
INTERMITTENT DTC
FUSED B(+) CIRCUIT OPEN OR HIGH RESISTANCE
(K51) ASD RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
(K51) ASD RELAY CONTROL CIRCUIT SHORTED TO GROUND
(K51) ASD RELAY CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
AUTO SHUTDOWN RELAY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .