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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Air Bag Restraint Systems) >> Diagnostic Tests >> Test B: RCM Internal Fault (DTC B1342) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2002 Lincoln Navigator and 2002 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

An RCM internal fault could be caused by improperly operating accelerometer, improperly operating accelerometer back-up power supply, internal module circuit fault or microcontroller RAM/ROM/EEPROM failure.

  1. Check for hard or intermittent DTC

    Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). See USING SCAN TOOL  under DIAGNOSTICS. Turn ignition switch to RUN position. Retrieve and record any continuous DTCs. See RETRIEVING FAULT CODES  under DIAGNOSTICS. Perform on-demand self-test. See ON-DEMAND SELF-TEST  under DIAGNOSTICS. If DTC B1342 was retrieved during on-demand self-test, fault is hard. Replace RCM and go to next step. See RESTRAINTS CONTROL MODULE (RCM)  under REMOVAL & INSTALLATION. If DTC B1342 was not retrieved, fault is intermittent. Replace RCM and go to next step.

  2. Check for additional DTCs

    Refer to continuous DTCs recorded in step  1 . If any continuous DTCs were retrieved, go to diagnostic trouble code identification table. See DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION  table. If no continuous DTCs were retrieved, clear all DTCs. See CLEARING FAULT CODES  under DIAGNOSTICS.
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