Possible Causes

WARNING: This page is about a different car, the 2001 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

Crash data memory full is caused by a crash event which deployed air bags.

Check for hard or intermittent DTC

Ensure ignition is off. 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 DIAGNOSTIC TROUBLE CODES (DTCS) under DIAGNOSTICS. Perform on-demand self-test. See ON-DEMAND SELF-TEST under DIAGNOSTICS. If DTC B1231 was retrieved during on-demand self-test, fault is hard. Replace driver and passenger-side air bag modules. See DRIVER-SIDE AIR BAG MODULE and PASSENGER-SIDE AIR BAG MODULE under REMOVAL & INSTALLATION. Go to next step. If DTC B1231 was not retrieved, fault is intermittent. Go to step 3 .

Check condition of RCM mounting bracket

Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Access and inspect RCM mounting bracket for damage. See RESTRAINTS CONTROL MODULE (RCM) under REMOVAL & INSTALLATION. If RCM mounting bracket is damaged, restore sheet metal to its original shape and structural integrity and replace RCM and mounting bracket. Go to next step. If RCM mounting bracket is not damaged, replace RCM and 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 appropriate test. See DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION table. DO NOT clear any DTCs until all DTCs have been resolved. If no DTCs were retrieved, restore air bag system. Activate air bag system. See ACTIVATING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Prove out system. See PROVE OUT SYSTEM under DIAGNOSTICS. Clear all DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES (DTCS) under DIAGNOSTICS.