44-1x
SRS DTC Troubleshooting: 44-1x
DTC 44-1x ("x" can be 0 thru 9 or A thru F):
No Signal From the Right Side Impact Sensor (first)
Special Tools Required
- SRS Inflator Simulator 07SAZ-TB4011A
- SRS Simulator Lead L 070AZ-SNAA300
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 Service and Repair.
- 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 DTCs with the HDS.
2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, then wait for 10 seconds.
3. Check for DTCs with the HDS.
Is DTC 44-1x indicated?
YES -
- If DTC 44-11 is indicated, go to step 4.
- If DTC 44-1x except 44-11 is indicated alone, or DTC 44-11 and 46-11 is indicated, faulty right side impact sensor (first); replace the right side impact sensor (first) 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.�
4. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
5. Disconnect the negative cable from the battery, then wait at least 3 minutes.
6. Disconnect the SRS floor wire harness 4P connector from the right side impact sensor (first) Side Impact Sensor (First) Replacement.
7. Disconnect SRS unit connector B (39P) from the SRS unit.
8. Measure the resistance between SRS unit connector B (39P) terminals No. 38 and No. 39. There should be an open circuit or at least 1 MOhms.
Is the resistance as specified?
YES -
Go to step 9.
NO -
Short to another wire in the SRS floor wire harness; replace the SRS floor wire harness, then clear the DTC.�
9. Measure the resistance between body ground and SRS unit connector B (39P) terminals No. 38 and No. 39 individually. There should be an open circuit or at least 1 MOhms.
Is the resistance as specified?
YES -
Go to step 10.
NO -
Short to ground in the SRS floor wire harness; replace the SRS floor wire harness, then clear the DTC.�
10. Reconnect the negative cable to the battery.
11. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
12. Measure the voltage between body ground and SRS unit connector B (39P) terminals No. 38 and No. 39 individually. There should be less than 0.2 V.
Is the voltage as specified?
YES -
Go to step 13.
NO -
Short to power in the SRS floor wire harness; replace the SRS floor wire harness, then clear the DTC.�
13. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
14. Connect the black terminal of SRS simulator lead L (A) to the SRS inflator simulator (jumper connector), and then connect SRS simulator lead L to the SRS floor wire harness 4P connector (B).
15. Measure the resistance between SRS unit connector B (39P) terminals No. 38 and No. 39. There should be less than 1.0 Ohms.
Is the resistance as specified?
YES -
Faulty right side impact sensor (first) or SRS unit; replace the right side impact sensor (first) Side Impact Sensor (First) Replacement, then clear the DTC, and retest. 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.�