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Home >> Mazda >> 2004 >> Tribute ES, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 548 (Troubleshooting (Communication Control System)) >> Pinpoint Test 2: The Restraint Control Module (RCM) Does Not Respond To The Diagnostic Tool >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2005 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.

The RCM communicates with the diagnostic tool through the ISO 9141 communications network circuit (LB/W). If circuit (LB/W) becomes open or shorted to ground, communications to that module will not be possible. Check circuit (LB/W) between the RCM 0810-101 and the DLC D-01. Total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms there is an open in the ISO network circuit, damage to the DLC D-01, or damage to the 0810-101.

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