Automatic Level Control Compressor Motor Inoperative
Automatic Level Control Compressor Motor Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Suspension Controls Schematics | |||
| 1 | Did you perform the RTD Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Real Time Damping |
| 2 | Is the rear of the vehicle low? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 | Inspect all air tubes and fittings for leaks. Did you find and correct the condition? |
Go to Step 12 | Go to Step 4 |
| 4 |
|
Go to Step 5 | Go to DTC C0655 |
| 5 |
|
Go to Step 6 | Go to Step 7 |
| 6 | Connect a 20A fused jumper wire between the battery positive voltage circuit of the compressor motor relay and the compressor control circuit of the compressor motor relay. Does the compressor motor turn on? |
Go to Step 11 | Go to Step 8 |
| 7 | Test the compressor control circuit of the compressor motor relay for an open, short to ground and high resistance. Refer to Circuit Testing
, and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 12 | Go to Step 8 |
| 8 | Test the positive battery voltage circuit of the compressor motor for an open and high resistance. Refer to Circuit Testing
, and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 12 | Go to Step 9 |
| 9 | Test the ground circuit of the compressor motor for an open and high resistance. Refer to Circuit Testing
, and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 12 | Go to Step 10 |
| 10 | Replace the compressor leveling module. Refer to Automatic Level Control Air Compressor Replacement . Did you complete the replacement? |
Go to Step 12 | - |
| 11 | Replace the compressor motor relay. Did you complete the replacement? |
Go to Step 12 | - |
| 12 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |