DTC A4-1x ("x" can be 0 thru 9 or A thru F): SRS Unit Connector B Not Properly Installed
NOTE:
- Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components, of the correct part number, and that they were properly installed (see COMPONENT REPLACEMENT/INSPECTION AFTER DEPLOYMENT ).
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures (see PRECAUTIONS AND PROCEDURES ), General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES) ), and 12 Volt Battery Terminal Disconnection and Reconnection (see 12 VOLT BATTERY TERMINAL DISCONNECTION AND RECONNECTION ).
- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software (see SRS UNIT UPDATE ) and retest.
- Clear the DTCs with the HDS (see HOW TO CLEAR DTCS ).
- Turn the ignition switch to ON (II), then wait for 10 seconds.
- Check for DTCs with the HDS (see HOW TO CLEAR DTCS
).
Is DTC A4-1x indicated?
YES -Go to step 4.
NO -Intermittent failure, the system is OK at this time. Go to TROUBLESHOOTING INTERMITTENT FAILURES . If another DTC is indicated, troubleshoot the DTC.
- Turn the ignition switch to LOCK (0).
- Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.
- Check the connection between SRS unit connector B (39P) and the SRS unit.
Is the connection OK?
YES -Go to step 7.
NO -Repair the poor connection, then clear the DTC, and retest. If DTC A4-1x is still present, go to step 7.
- Disconnect SRS unit connector B (39P) from the SRS unit (see step 10 ).
- Check for bent or damaged terminals on the SRS unit.
Are any terminals bent or damaged?
YES -Replace the SRS unit (see SRS UNIT REPLACEMENT ).
NO -Replace the floor wire harness, then clear the DTC.