DTC A4-1x: 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 .
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures , General Troubleshooting Information , and 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 , and retest.
- 1. Problem verification:
1. Clear the DTCs with the HDS .
2. Turn the vehicle to the ON mode, then wait for 10 seconds.
3. Check for DTCs with the HDS .
Is DTC A4-1x indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures . If another DTC is indicated, troubleshoot the DTC.
- 2. Connector connection check:
1. Turn the vehicle to the OFF (LOCK) mode.
2. Check the following connector connection.
SRS unit connector B (39P) Is the connector OK?
YES
Go to step 4.
NO
Go to step 3.
- 3. System check:
1. Repair the poor connector connection which was the cause of the problem in step 2.
2. Clear the DTCs with the HDS .
3. Turn the vehicle to the ON mode, then wait for 10 seconds.
4. Check for DTCs with the HDS .
Is DTC A4-1x indicated?
YES
Turn the vehicle to the OFF (LOCK) mode, then go to step 4.
NO
The system is OK at this time.
- 4. SRS unit check:
1. Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.
2. Disconnect the following connector.
SRS unit connector B (39P) 3. Check for bent or damaged terminals on the SRS unit.
Are any terminals bent or damaged?
YES
NO
Replace the floor wire harness, then clear the DTC.