Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead L 070AZ-SNAA300
- 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 , General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES) and 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 CLEAR THE DTC MEMORY ).
- Turn the ignition switch to ON (II), then wait for 10 seconds.
- Check for the DTCs with the HDS (see READING THE DTC
).
Is DTC 45-1x indicated?
YES -
- If DTC 45-11 is indicated, go to step 4.
- If DTC 45-1x except 45-11 is indicated alone, faulty left side impact sensor (second); replace the left side impact sensor (second) (see SIDE IMPACT SENSOR (SECOND) REPLACEMENT ), then clear the DTC.
- If DTC 43-11 and 45-11 are indicated, faulty left side impact sensor (first); replace the left side impact sensor (first) (see SIDE IMPACT SENSOR (FIRST) REPLACEMENT ), then clear the DTC.
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 battery, then wait at least 3 minutes.
- Disconnect the floor wire harness 4P connector from the left side impact sensor (first) (see SIDE IMPACT SENSOR (FIRST) REPLACEMENT ).
- Disconnect the floor wire harness 2P connector (A) from the left side impact sensor (second) (see SIDE IMPACT SENSOR (SECOND) REPLACEMENT ).
- Measure the resistance between floor wire harness 2P connector terminals No. 1 and No. 2.
Is there an open circuit, or at least 1 MΩ ?
YES - Go to step 9.
NO - Short to another wire in the floor wire harness between the left side impact sensor (first) and the left side impact sensor (second); replace the floor wire harness, then clear the DTC.
- Measure the resistance between body ground and floor wire harness 2P connector terminals No. 1 and No. 2, individually.
Is there an open circuit, or at least 1 MΩ ?
YES - Go to step 10.
NO - Short to ground in the floor wire harness between the left side impact sensor (first) and the left side impact sensor (second); replace the floor wire harness, then clear the DTC.
- Reconnect the negative cable to the battery.
- Turn the ignition switch to ON (II).
- Measure the voltage between body ground and floor wire harness 2P connector terminals No. 1 and No. 2, individually.
Is there less than 0.2 V?
YES - Go to step 13.
NO - Short to power in the floor wire harness between the left side impact sensor (first) and the left side impact sensor (second); replace the floor wire harness, then clear the DTC.
- Turn the ignition switch to LOCK (0).
- Connect the black terminals (A) of SRS simulator lead L to the SRS inflator simulator (jumper connector), and then connect SRS simulator lead L to the left side impact sensor (first) 4P connector (B) on the floor wire harness.
- Measure the resistance between left side impact sensor (second) 2P connector on the floor wire harness terminals No. 1 and No. 2.
Is there less than 1.0 Ω ?
YES - Faulty left side impact sensor (second) or SRS unit; replace the left side impact sensor (second) (see SIDE IMPACT SENSOR (SECOND) REPLACEMENT ), then clear the DTC. If the problem is still present, replace the SRS unit (see SRS UNIT REPLACEMENT ). If the DTC is still present; replace the faulty floor wire harness.
NO - Open in the floor wire harness between the left side impact sensor (first) and the left side impact sensor (second); replace the floor wire harness, then clear the DTC.