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Home >> Ford >> 2003 >> Thunderbird V8-3.9L VIN A >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Pinpoint Tests >> Test K
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Test K

PINPOINT TEST K: NO INTERNATIONAL STANDARDS ORGANIZATION (ISO) 9141 NETWORK COMMUNICATION


Test K1-K4:






Test K5-K8:






Normal Operation
The restraint control module (RCM) communicates with the diagnostic tool through the international standards organization (ISO) 9141 communications network. Circuit 4-EE1(GY/RD) receives and transmits data from the data link connector (DLC) to the RCM through in-line C214. The ability to communicate on the ISO 9141 network will be disabled if the circuit is open, shorted to ground or shorted to voltage.

Possible Causes
- circuit 4-EE1 (GY/RD) open or shorted
- RCM C310a
- DLC C251
- RCM
- ABS module