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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1649 ((Rear Air Suspension Control Module (ASCM) - Electrical Diagnostics - 2500 Hd)) >> DTC Troubleshooting >> C1556-12-Ride Height Air Pressure Sensor - Circuit Short To Battery >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY
PRESSURE SENSOR RETURN CIRCUIT OPEN OR HIGH RESISTANCE
AIR SUSPENSION COMPRESSOR ASSEMBLY
AIR SUSPENSION CONTROL MODULE (ASCM)

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

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