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SRS DTC Troubleshooting: 43-11

DTC 43-11:
 No Signal From the Left Side Impact Sensor (first)
NOTE:
  1. Turn the ignition switch to ON (II), then wait for 10 seconds.
Is DTC 43-11 indicated?
YES -
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).
Are the connections OK?
YES -
Go to Step 7 .
NO -
Repair the poor connections and retest.
  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 floor wire harness; replace the floor wire harness.■

  1. Measure the resistance between No. 36 terminal of SRS unit connector B (39P) and body ground, and between the No. 37 terminal and body ground. There should be an open circuit or at least 1 MΩ.
Is the resistance as specified?
YES -
Go to Step 11 .
NO -
Short to ground in the floor wire harness; replace the floor wire harness.■
  1. Turn the ignition switch to ON (II).

  1. Measure the voltage between No. 36 terminal of SRS unit connector B (39P) and body ground, and between the No. 37 terminal and body ground. There should be less than 1.0 V.
Is the voltage as specified?
YES -
Go to Step 14 .
NO -
Short to power in the floor wire harness; replace the floor wire harness.■
  1. Turn the ignition switch to LOCK (0).

  1. Measure the resistance between the No. 2 terminal of the floor wire harness 4P connector and the No. 37 terminal of the SRS unit connector B (39P), and between the No. 3 terminal of the floor wire harness 4P connector and the No. 36 terminal of the SRS unit connector B (39P). There should be 0−1.0 Ω.
Is the resistance as specified?
YES -
Go to Step 16 .
NO -
Open in the floor wire harness; replace the floor wire harness.■
  1. Substitute a known-good left side impact sensor (first) and recheck.
  1. Turn the ignition switch to ON (II), then wait for 10 seconds.
Is DTC 43-11 indicated?
YES -
NO -
Faulty left side impact sensor (first); replace the left side impact sensor (first).