(Air Suspension Control Module (ASCM) - Electrical Diagnostics)

• Diagnostic Code Index
• DTC Troubleshooting
  • C151E-11-Left Front Ride Height Sensor - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C151E-15-Left Front Ride Height Sensor - Circuit Short To Battery Or Open
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C151E-36-Left Front Ride Height Sensor-Signal Frequency Too Low
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C151E-37-Left Front Ride Height Sensor-Signal Frequency Too High
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C151E-76-Left Front Ride Height Sensor - Wrong Mounting Position
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1522-11-Right Front Ride Height Sensor - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1522-15-Right Front Ride Height Sensor - Circuit Short To Battery Or Open
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1522-36-Right Front Ride Height Sensor-Signal Frequency Too Low
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1522-37-Right Front Ride Height Sensor-Signal Frequency Too High
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1522-76-Right Front Ride Height Sensor - Wrong Mounting Position
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1526-11-Left Rear Ride Height Sensor - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1526-15-Left Rear Ride Height Sensor - Circuit Short To Battery Or Open
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1526-36-Left Rear Ride Height Sensor-Signal Frequency Too Low
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1526-37-Left Rear Ride Height Sensor-Signal Frequency Too High
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1526-76-Left Rear Ride Height Sensor - Wrong Mounting Position
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C152A-11-Right Rear Ride Height Sensor - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C152A-15-Right Rear Ride Height Sensor - Circuit Short To Battery Or Open
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C152A-36-Right Rear Ride Height Sensor-Signal Frequency Too Low
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C152A-37-Right Rear Ride Height Sensor-Signal Frequency Too High
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C152A-76-Right Rear Ride Height Sensor - Wrong Mounting Position
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C153A-11-Left Front Ride Height Level Control - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C153A-12-Left Front Ride Height Level Control - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C153A-13-Left Front Ride Height Level Control - Circuit Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C153A-96-Left Front Ride Height Level Control - Component Internal Failure
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C153D-11-Right Front Ride Height Level Control - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C153D-12-Right Front Ride Height Level Control - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C153D-13-Right Front Ride Height Level Control - Circuit Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C153D-96-Right Front Ride Height Level Control - Component Internal Failure
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1540-11-Left Rear Ride Height Level Control - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1540-12-Left Rear Ride Height Level Control - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1540-13-Left Rear Ride Height Level Control - Circuit Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1540-96-Left Rear Ride Height Level Control - Component Internal Failure
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1543-11-Right Rear Ride Height Level Control - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1543-12-Right Rear Ride Height Level Control - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1543-13-Right Rear Ride Height Level Control - Circuit Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1543-96-Right Rear Ride Height Level Control - Component Internal Failure
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1556-12-Ride Height Air Pressure Sensor - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1556-14-Ride Height Air Pressure Sensor - Circuit Short To Ground Or Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1556-96-Ride Height Air Pressure Sensor - Component Internal Failure
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C155E-11-Ride Height Pressure Vent Control - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C155E-12-Ride Height Pressure Vent Control - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C155E-13-Ride Height Pressure Vent Control - Circuit Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C155E-92-Ride Height Pressure Vent Control - Performance Or Incorrect Operation (Overuse DTC)
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C155E-96-Ride Height Pressure Vent Control - Component Internal Failure
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1562-13-Ride Height Air Pump Control - Circuit Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1562-92-Ride Height Air Pump Control - Performance Or Incorrect Operation (Overuse DTC)
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1562-98-Ride Height Air Pump Control - Component Or System Over Temperature (Overuse DTC)
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C1566-92-Left Rear Ride Height Level Performance - Performance Or Incorrect Operation (Overuse DTC)
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1567-92-Right Rear Ride Height Level Performance - Performance Or Incorrect Operation (Overuse DTC)
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1568-92-Left Front Ride Height Level Performance - Performance Or Incorrect Operation (Overuse DTC)
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C1569-92-Right Front Ride Height Level Performance - Performance Or Incorrect Operation (Overuse DTC)
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C156E-00-Ride Height System Calibration Performance
    • When Monitored And Set Conditions
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C159E-11-Air Pump Temperature Sensor - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C159E-15-Air Pump Temperature Sensor - Circuit Short To Battery Or Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C159F-11-Air Suspension Reverse Valve 1 Control - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C159F-12-Air Suspension Reverse Valve 1 Control - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C159F-13-Air Suspension Reverse Valve 1 Control - Circuit Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C159F-92-Air Suspension Reverse Valve 1 Control - Performance Or Incorrect Operation (Overuse DTC)
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C159F-96-Air Suspension Reverse Valve 1 Control - Component Internal Failure
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A0-11-Air Suspension Reverse Valve 2 Control - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A0-12-Air Suspension Reverse Valve 2 Control - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A0-13-Air Suspension Reverse Valve 2 Control - Circuit Open
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A0-92-Air Suspension Reverse Valve 2 Control - Performance Or Incorrect Operation (Overuse DTC)
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A0-96-Air Suspension Reverse Valve 2 Control - Component Internal Failure
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A1-00-Unable To Obtain Desired Ride Height
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A2-00-Ride Height System UNLEVEL
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A3-00-Ride Height System Manually Switch Off
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A7-2A-Air Suspension Up Button - Stuck
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A8-2A-Air Suspension Down Button - Stuck
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15A9-00-Height Sensor Mechanical Performance
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15AA-00-Air Leak During Vent
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15AB-00-Air Leak During Fill
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15AD-92-Ride Height System - Performance Or Incorrect Operation
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15AE-00-Compressor Pressure Line Leak
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15AF-1F-Low Side Driver - Circuit Intermittent
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • C15C0-98-Air Suspension - Component Or System Over Temperature (Overuse DTC)
    • When Monitored And Set Conditions
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C15D9-00-Low Air Mass
    • When Monitored And Set Conditions
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C2110-11-Sensor Supply 1 Voltage - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C2110-12-Sensor Supply 1 Voltage - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C211B-92-Ignition Run/Start Input Circuit Performance - Performance Or Incorrect Operation
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C2125-11-Sensor Supply 2 Voltage - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C2125-12-Sensor Supply 2 Voltage - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C2129-16-Battery Voltage - Circuit Voltage Below Threshold
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C2129-17-Battery Voltage - Circuit Voltage Above Threshold
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C212A-16-System Voltage Low - Circuit Voltage Below Threshold
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C212A-17-System Voltage High - Circuit Voltage Above Threshold
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C212B-11-Sensor Supply 3 Voltage - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C212B-12-Sensor Supply 3 Voltage - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C212C-11-Suspension Valve Power Supply Voltage - Circuit Short To Ground
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C212C-12-Suspension Valve Power Supply Voltage - Circuit Short To Battery
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C2202-00-Original VIN Mismatch / Missing
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C2206-00-Vehicle Configuration Mismatch
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C220C-00-Active Suspension Module Internal
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • C2212-00-Ecu In - Plant Mode
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • U0001-00-Can C Bus
  • U0100-00-Lost Communication With ECM/Pcm
  • U0101-00-Lost Communication With TCM
  • U0102-00-Lost Communication With Transfer Case Control Module / AWD
  • U0121-00-Lost Communication With Anti-Lock Brake System (Abs) Control Module
  • U0127-00-Lost Communication With Tire Pressure Monitor Module
  • U0140-00-Lost Communication With Body Control Module
  • U0155-00-Lost Communication With Cluster-CCN
  • U0159-00-Lost Communication With Parking Assist Control Module (PAM)
  • U0212-00 Lost Communication With Steering Column Control Module
  • U0401-00-Implausible Data Received From ECM/Pcm
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • U0402-00-Implausible Data Received From TCM
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • U0403-00-Implausible Data Received From T-Case
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • U0415-00-Implausible Data Received From Abs
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • U0422-00-Implausible Data Received From Body Control Module
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • U0423-00-Implausible Data Received From Cluster/CCN
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • U0429-00-Implausible Data Received From SCM
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
  • U045A-00-Implausible Data Received From Parking Assist Module
    • Notes
    • When Monitored
    • Possible Causes
    • Diagnostic Test
  • U110A-00-Lost Communication With SCM - Can-C
  • U11B9-00-Lost Communication With RF Hub
  • U1489-00-Implausible Data Received From RF Hub
    • Notes
    • When Monitored
    • Set Condition
    • Possible Causes
    • Diagnostic Test
• Standard Procedure
  • Standard Procedure - ASCM Verification Test
    • ASCM Verification Test
  • ASCM Pre-Diagnostic Troubleshooting Procedure
    • Notes
    • Theory Of Operation
    • Diagnostic Test