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Home >> Ford >> 2003 >> Explorer AWD V8-4.6L VIN W >> Repair and Diagnosis >> Maintenance >> Wheels and Tires >> Tire Monitoring System >> Testing and Inspection >> Pinpoint Tests >> Test A: No Communication With the TPMS Module/Unable to Enter Self-Test
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Test A: No Communication With the TPMS Module/Unable to Enter Self-Test

Pinpoint Test A: No Communication With The TPMS Module/Unable To Enter Self-Test

A1 - A2:





CAUTION: The Flex Probe Kit must be used for all test connections. Use of standard multimeter probes may damage wiring terminals.

Normal Operation
The TPMS module requires an operating voltage in a range between 10 and 17 volts.
Voltage is supplied by circuit 1002 (BK/PK) (ignition feed) and circuit 3049 (BK/LG) (B+ voltage at all times). Ground is provided through circuit 57 (BK).

Possible Causes
- Power supply circuit 1002 (BK/PK) (ignition feed)
- Power circuit 3049 (BK/LG) (B+ voltage at all times)
- Ground circuit 57 (BK)
- TPMS module
- Scan tool
- Data link connector (DLC) and wiring

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