Possible Causes
WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
An incorrect module design level code could be caused by an RCM installed on wrong vehicle, an incorrectly programmed RCM or vehicle ID terminals not connected as expected.
- Check for hard or intermittent DTC
Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). Turn ignition switch to ON 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 C1414 was retrieved during on-demand self-test, fault is hard. Go to next step. If DTC C1414 was not retrieved, fault is intermittent. Go to step 4 .NOTE: For the following test, RCM harness connector C2041, terminals No. 10 and 14 should be open circuited. - Check vehicle identification Pins No. 10 & 14
Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Access RCM. See RESTRAINTS CONTROL MODULE (RCM) under REMOVAL & INSTALLATION. Inspect RCM harness connector C2041, terminals No. 10 and 14 to ensure they are empty (contains no wire) and that no connection would be made when mated to RCM. See Figure . If terminals are empty (contains no wire), go to next step. If terminals are not empty (has wire attached), repair as necessary. See WIRING DIAGRAMS . Go to next step.NOTE: For the following test, RCM harness connector C2041, terminal No 13 should be connected to ignition voltage. - Check vehicle identification pin No. 13
Turn ignition switch to ON position. Measure voltage between ground and RCM harness connector C2041, terminals No. 13 (Orange/Yellow wire, circuit No. 1654). See Figure . Measure voltage between ground and RCM harness connector C2041, terminals No. 2 (Orange/Yellow wire, circuit No. 1654). If voltage is more than 9 volts, repair open in appropriate Orange/Yellow wire. Go to step 4 . If voltage is less than 9 volts, go to next step. - Check for intermittent fault
Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Turn ignition switch to ON position. Perform on-demand self-test. If DTC C1414 was retrieved during on-demand self-test, go to step 2 . If DTC C1414 was not retrieved, check for cause of intermittent fault. Attempt to recreate fault by flexing wire harness and cycling ignition switch frequently. See WIRING DIAGRAMS . Repair any intermittent problems found. Go to next step. - 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 for direction to appropriate test. DO NOT clear any DTCs until all DTCs have been resolved. See DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION table. If no continuous DTCs were retrieved, reactivate air bag system. See ACTIVATING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Perform system operation check. See SYSTEM OPERATION CHECK . Clear all DTCs. See CLEARING FAULT CODES under DIAGNOSTICS.