46-1x

SRS DTC Troubleshooting: 46-1x (x can be 0 thru 9 or A thru F)

DTC 46-1x ("x" can be 0 thru 9 or A thru F):No Signal From the Right Side Impact Sensor (second)

Special Tools Required

- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead L 070AZ-SNAA300
NOTE:

- Before doing this troubleshooting procedure, review SRS Precautions and Procedures, Service and Repair General Troubleshooting Information, Reading and Clearing Diagnostic Trouble Codes and Battery Terminal Disconnection and Reconnection. Procedures

- 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, SRS Unit Update and retest.

1. Clear the DTC with the HDS. Reading and Clearing Diagnostic Trouble Codes

2. Turn the ignition switch to ON (II), then wait for 10 seconds.

3. Check for DTCs with the HDS. Reading and Clearing Diagnostic Trouble Codes

Is DTC 46-11 indicated?
YES - Go to step 5.

NO - Go to step 4.


4. Check for DTCs with the HDS. Reading and Clearing Diagnostic Trouble Codes

Is DTC 46-1x indicated?
YES - Faulty right side impact sensor (second); replace the right side impact sensor (second), Side Impact Sensor (Second) Replacement then clear the DTC.

NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Reading and Clearing Diagnostic Trouble Codes If another DTC is indicated, troubleshoot the DTC.


5. Turn the ignition switch to LOCK (0).

6. Disconnect the negative cable from the battery, then wait at least 3 minutes.

7. Disconnect the SRS floor wire harness 4P connector from the right side impact sensor (first). Side Impact Sensor (First) Replacement

8. Disconnect the SRS floor wire harness 2P connector from the right side impact sensor (second). Side Impact Sensor (Second) Replacement

9. Measure the resistance between SRS floor wire harness 2P connector terminals No. 1 and No. 2. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?
YES - Go to step 10.

NO - Short to another wire in the SRS floor wire harness; replace the SRS floor wire harness, then clear the DTC.






10. Measure the resistance between body ground and SRS floor wire harness 2P connector terminals No. 1 and No. 2, individually. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?
YES - Go to step 11.

NO - Short to ground in the SRS floor wire harness; replace the SRS floor wire harness, then clear the DTC.






11. Reconnect the negative cable to the battery.

12. Turn the ignition switch to ON (II).

13. Measure the voltage between body ground and SRS floor wire harness 2P connector terminals No. 1 and No. 2, individually. There should be less than 0.2 V.

Is the voltage as specified?
YES - Go to step 14.

NO - Short to power in the SRS floor wire harness; replace the SRS floor wire harness, then clear the DTC.






14. Turn the ignition switch to LOCK (0).

15. Connect the SRS inflator simulator (jumper connector) and the black lead (A) of simulator lead L to the SRS floor wire harness 4P connector (B).






16. Measure the resistance between SRS floor wire harness 2P connector terminals No. 1 and No. 2. There should be less than 1.0Ohms.

Is the resistance as specified?
YES - Faulty right side impact sensor (second) or SRS unit; replace the right side impact sensor (second), Side Impact Sensor (Second) Replacement then clear the DTC. If the DTC is still present, replace the SRS unit. SRS Unit Replacement

NO - Open in the SRS floor wire harness; replace the SRS floor wire harness, then clear the DTC.