LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Mirrors >> Driver Door Module (DDM) - Electrical Diagnostics >> DTC Troubleshooting >> B190E-Driver Window Switch Circuit Low >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

Possible Causes 
(Q221) (LHD) MASTER SWITCH LEFT FRONT WINDOW MUX CIRCUIT SHORT TO GROUND
(Q222) (RHD) MASTER SWITCH RIGHT FRONT WINDOW MUX CIRCUIT SHORT TO GROUND
(Q221) (LHD) MASTER SWITCH LEFT FRONT WINDOW MUX CIRCUIT SHORTED TO THE (Q994) DRIVER EXPRESS SWITCH RETURN CIRCUIT
(Q222) (RHD) MASTER SWITCH RIGHT FRONT WINDOW MUX CIRCUIT SHORTED TO THE (Q994) DRIVER EXPRESS SWITCH RETURN CIRCUIT
DRIVER WINDOW/DOOR LOCK SWITCH
DRIVER DOOR MODULE (DDM)