C1540 RAM - Air Suspension Left Rear Ride Height Level Control

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Left Rear Ride Air Spring Control Valve
  • Faulty Air Suspension Solenoid
  • Air Suspension Solenoid harness is open or shorted
  • Air Suspension Solenoid circuit poor electrical connection
  • Faulty Air Suspension Control Module (ASCM)

Tech notes

C1540-11-LEFT REAR RIDE HEIGHT LEVEL CONTROL - CIRCUIT SHORT TO GROUND
C1540-12-LEFT REAR RIDE HEIGHT LEVEL CONTROL - CIRCUIT SHORT TO BATTERY
C1540-13-LEFT REAR RIDE HEIGHT LEVEL CONTROL - CIRCUIT OPEN
C1540-96-LEFT REAR RIDE HEIGHT LEVEL CONTROL - COMPONENT INTERNAL FAILURE

Possible symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C1540 Ram Description

The Air Suspension Control Module (ASCM) monitors the Left Rear Ride Air Spring Control Valve. The ECM sets the OBDII code when the Air Suspension Control Module (ASCM) detects when the Left Rear Ride Air Spring Control Valve is not to factory specifications while the ignition is in the Run position.
OBDII Code C1540 Ram - Air Suspension Left Rear Ride Height Level Control - AutoCodes.com

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C1540 RAM Comments

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