DTC 41-1x
DTC 41-1x (41-10 to 41-19, 41-1A to 41-1F): No signal from the Left Front Impact SensorSpecial Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead H 07YAZ-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 41- 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. Check the connections between SRS unit connector A (28P) and the SRS unit, between the engine compartment wire harness 2P connector and the left front impact sensor, and at connector C403.
Are the connections OK?
YES - Go to step 4.
NO - Repair the poor connections and retest. If DTC 41-1x is still present, go to step 4.
4. Disconnect the battery negative cable, and wait for 3 minutes.
5. Disconnect the en9ine compartment wire harness 2P connector (A) from the left front impact sensor.
6. Disconnect SRS unit connector A (28P) from the SRS unit.
7. Check resistance between the No. 15 and No. 27 terminals of SRS unit connector A (28P). There should be an open circuit or at least 1 MOhm.
Is the resistance as specified?
YES - Go to step 8.
NO - Short in the engine compartment wire harness or dashboard wire harness; replace the faulty harness.
8. Check resistance between the No. 15 terminal of SRS unit connector A (28P) and body ground, and between the No. 27 terminal and body ground. There should be an open circuit or at lest 1 MOhm.
Is the resistance as specified?
YES - Go to step 9.
NO - Short to ground in the dashboard wire harness or engine compartment wire harness; replace the faulty harness.
9. Reconnect the battery negative cable.
10. Turn the ignition switch ON (II).
11. Check for voltage between the No. 15 terminal of SRS unit connector A (28P) and body ground, and between the No. 27 terminal and body ground. There should be 1 V or less.
Is the voltage as specified?
YES - Go to step 12.
NO - Short to power in the engine compartment wire harness or the dashboard wire harness; replace the faulty harness.
12. Turn the ignition switch OFF.
13. Connect the SRS inflator simulator (jumper connector) and simulator lead H to the engine compartment wire harness 2P connector (A).
14. Check resistance between the No; 15 and No. 27 terminals of SRS unit connector A (28P). There should be 0 - 1.0 Ohm.
Is the resistance as specified?
YES - Faulty left front impact sensor or SRS unit; replace the left front impact sensor. If the problem is still present, replace the SRS unit.
NO - Poor connection at C403, faulty engine compartment wire harness, or faulty dashboard wire harness. Inspect C403. If it is OK, replace the faulty harness.