Pinpoint Test A: No Communication With The Air Suspension Module
- A1 CHECK CIRCUITS 1003 (GY/YE) AND 1524 (DB) FOR AN OPEN
- Key in OFF position.
- Disconnect: Air Suspension Module.
- Key in ON position.
- Measure the voltage between the following air suspension module pins, harness side and ground:
| Pin |
Circuit |
| 1 |
1524 (DB) |
| 4 |
1003 (GY/YE) |
| 15 |
1524 (DB) |
- Are the voltages greater than 10 volts?
- Yes
: GO to A2.
- No
: REPAIR the circuit(s) in question. TEST the system for normal operation.
- A2 CHECK CIRCUIT 875 (BK/LB) FOR AN OPEN
- Disconnect: Air Suspension Module C2131a.
- Measure the resistance between the air suspension module C2131a pin 19, circuit 875 (BK/LB), harness side and ground.
Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes
: CHECK the module communication network. REFER to MODULE COMMUNICATIONS NETWORK
.
- No
: REPAIR the circuit. TEST the system for normal operation.