DTC Troubleshooting: 43-1x
DTC 43-1x (‘‘x'' can be 0 thru 9 or A thru F):
No Signal From the Left Side Impact Sensor (first)
NOTE:
  • Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.
  • 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 and retest.
  1. Clear the DTC memory.
  1. Turn the ignition switch to ON (II), then wait for 10 seconds.
  1. Read the DTC.
Is DTC 43-1x indicated?
YES -
  • If DTC 43-11 is indicated, go to Step 4 .
  • If DTC 43-1x except 43-11 is indicated alone or DTC 43-11 and 45-11 are indicated, faulty left side impact sensor (first); replace the left side impact sensor. ■
NO -
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.
  1. Turn the ignition switch to LOCK (0).
  1. Do the battery terminal disconnection procedure , then wait for 3 minutes.
  1. Disconnect the SRS floor wire harness 4P connector from the left side impact sensor (first). ■
  1. Disconnect SRS unit connector B (39P) from the SRS unit.
  1. Connect an SRS short canceller (070AZ-SAA0100) to the No. 36 and the No. 37 terminals of SRS unit connector B (39P).
  1. Measure the resistance between No. 36 and No. 37 terminals of SRS unit connector B (39P). There should be an open circuit or at least 1 MΩ.
Is the resistance as specified?
YES -
Go to Step 10 .
NO -
Short in the SRS floor wire harness; replace the SRS floor wire harness.■