Pinpoint Test A: No Communication With The Air Suspension Module
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
The Flex Probe Kit must be used for all test connections. Use of standard multimeter probes may damage wiring terminals.
- A1 CHECK CIRCUIT 298 (VT/OG) FOR AN OPEN
- Key in OFF position.
- Disconnect: Air Suspension Module C2131b.
- Key in ON position.
- Measure the voltage between rear air suspension module C2131b-16, circuit 298 (VT/OG), harness side and ground.
- Is the voltage greater than 10 volts?
Yes : GO to A2.
No : VERIFY CJB fuse 4 (10A) is OK. If OK, REPAIR circuit 298 (VT/OG) for an open. REPEAT the self-test.
- A2 CHECK CIRCUIT 418 (DG/YE) FOR AN OPEN
- Measure the voltage between ground and:
- air suspension module C2131b-1, 418 (DG/YE), harness side.
- air suspension module C2131b-15, 418 (DG/YE), harness side.
- Are the voltages greater than 10 volts?
Yes : GO to A3.
No : VERIFY BJB fuse 5 (10A) is OK. If OK, REPAIR circuit 418 (DG/YE) for an open. REPEAT the self-test.
- Measure the voltage between ground and:
- A3 CHECK CIRCUIT 676 (PK/OG) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between rear air suspension module C2131b-6, circuit 676 (PK/OG), harness side and ground.
- Is the resistance less than 5 ohms?
Yes : REFER to MODULE COMMUNICATIONS NETWORK .
No : REPAIR circuit 676 (PK/OG) for an open. REPEAT the self-test.