Section 3 (Vehicle Dynamic - 4 Wheel)
WARNING: This page is about a different variant/trim than selected.
- Specifications
- Description And Operation
- Diagnosis And Testing
- Vehicle Dynamic Suspension - 4-Wheel Air Suspension
- Notes
- Special Tools
- Principles of Operation
- Diagnostic Tools
- Air Suspension Service Switch
- Air Compressor
- Air Spring
- Air Lines and Fittings
- Air Suspension Height Sensors
- Compressor Relay
- 4-Wheel Air Suspension (4WAS) Module
- Air Spring Solenoid
- Inspection and Verification
- Clearing DTC C1990 or C1991
- Symptom Chart
- Pinpoint Tests
- Pinpoint Test A: No Communication With The 4WAS (VDM) Module
- Pinpoint Test B: Unable To Enter Self-Test
- Pinpoint Test C: DTC B1317/B1318 - Battery Voltage High/Low
- Pinpoint Test D: DTC C1724 - Air Suspension Height Sensor Power Circuit Failure
- Pinpoint Test E: DTCS C1725/C1726 - Air Suspension Front/Rear Pneumatic Failure
- Pinpoint Test F: DTC C1760 (Rear), C1881 (RF), C1889 (LF) - Air Suspension Height Sensor Signal Circuit Failure
- Pinpoint Test G: DTC C1770 - Air Suspension Vent Solenoid Output Circuit Failure
- Pinpoint Test H: DTC C1790 (LR), C1795 (RR), C1873 (RF), C1877 (LF) - Air Suspension Air Spring Solenoid Output Circuit Failure
- Pinpoint Test I: DTC C1830 - Air Suspension Compressor Relay Circuit Failure
- Pinpoint Test J: DTC C1840 - Air Suspension Service Switch Circuit Failure
- Pinpoint Test K: The Air Compressor Continuously Cycles With The Ignition Switch In The Off Position And No DTC Is Set
- Pinpoint Test L: Air Suspension System Inoperative Without DTCS And Vehicle At Rest
- Pinpoint Test M: Air Suspension System Operates With Air Suspension Service Switch In The Off Position
- Pinpoint Test N: Excessive Air Compressor Noise
- Pinpoint Test O: The Compressor Is Inoperative
- Vehicle Dynamic Suspension - 4-Wheel Air Suspension
- Component Test
- General Procedures
- Removal And Installation