DTC 46-1x
DTC 46-1x (46-10 to 46-19, 46-1A to 46-1F): No Signal from the Right Side Impact Sensor (second)Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead H 07YA2-S3AA100
1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.
Does the SRS indicator stay on, and is DTC 46-1x indicated?
YES - Go to step 3.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Diagnostic Strategies If another DTC is indicated, go to the DTC Troubleshooting Index. DTC List - Supplemental Restraint System
3. Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.
4. Check the connection between the floor wire harness 2P connector and the right side impact sensor (second).
Is the connection OK?
YES - Go to step 5.
NO - Repair the poor connections and retest. If the DTC 46-1x is still present, go to step 5.
5. Disconnect the right side curtain airbag 2P connector and floor wire harness.
6. Disconnect the floor wire harness 2P connector (A) from the right aide impact sensor (second).
7. Disconnect SRS unit connector C (28P) from the SRS unit.
8. Check resistance between the No. 19 and No. 20 terminals of SRS unit connector C (28P). There should be an open circuit or at least 1 MOhm.
Is the resistance as specified?
YES - Go to step 9.
NO - Short in the floor wire harness; replace the floor wire harness.
9. Check resistance between the No. 19 terminal of SRS unit connector C (28P) and body ground, and between the No. 20 terminal and body ground. There should be an open circuit or at least 1 MOhm.
Is the resistance as specified?
YES - Go to step 10.
NO - Short to ground in the floor wire harness; replace the floor wire harness.
10. Reconnect the battery negative cable.
11. Turn the ignition switch ON (II).
12. Check for voltage between the No. 19 terminal of SRS unit connector C (28P) and body ground, and between the No. 20 terminal and body ground. There should be 1 V or less.
Is the voltage as specified?
YES - Go to step 13.
NO - Short to power in the floor wire harness; replace the floor wire harness.
13. Turn the ignition switch OFF.
14. Connect the SRS inflator simulator (jumper connector) and simulator lead H to the floor wire harness 2P connector (A).
15. Check resistance between the No. 19 and No. 20 terminals of SRS unit connector C (28P). There should be 1.0 Ohm or less.
Is the resistance as specified?
YES - Faulty right side impact sensor (second) or SRS unit; replace the right side impact sensor (second). If the problem is still present, replace the SRS unit.
NO - Open in the floor wire harness; replace the floor wire harness.