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Home >> Ford >> 2006 >> E 250 V8-4.6L VIN W >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Pinpoint Tests >> Test C: The Restraint Control Module (RCM) Does Not Respond to the Diagnostic Tool
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Test C: The Restraint Control Module (RCM) Does Not Respond to the Diagnostic Tool

PINPOINT TEST C: THE RESTRAINT CONTROL MODULE (RCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL


C1-C2:






Normal Operation
The RCM communicates with the diagnostic tool through the international standards organization (ISO) 9141 communications network, circuit 70 (LB/WH). Check circuit 70 (LB/WH) between the RCM C310a and the data link connector (DLC) C251. The total resistance value must not be more than 5 ohms. If the resistance is more than 5 ohms there is an open in the ISO 9141 communications network circuit, damage to the DLC C251, damage to the RCM C310a, or a problem in an in-line connector.

Possible Causes
- ISO 9141 circuit 70 (LB/WH) open
- RCM
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