Pinpoint Test A: No Communication With The TPMS Module/Unable To Enter Self-Test
WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. 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 CIRCUITS 1050 (LG/VT) AND 1003 (GY/YE) FOR AN OPEN
- Disconnect: TPMS Module C3183.
- Key in ON position.
- Measure the voltage between TPMS module connector C3183-5, circuit 1050 (LG/VT) harness side and ground and between C3183-3, circuit 1003 (GY/YE) harness side and ground.
- Are the voltages greater than 10 volts?
Yes GO to A2.
No REPAIR circuit 1050 (LG/VT) or circuit 1003 (GY/YE). TEST the system for normal operation.
- A2 CHECK CIRCUIT 1205 (BK) FOR OPEN
- Measure the resistance between TPMS module harness connector C3183-6, circuit 1205 (BK) and ground.
- Is the resistance greater than 5 ohms?
Yes REPAIR circuit 1205 (BK) TEST the system for normal operation.
No CHECK the CAN communication circuits. REFER to MODULE COMMUNICATIONS NETWORK .