SRS 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)
Special Tools Required

SRS inflator simulator
 07SAZ-TB4011A

SRS simulator lead L
 070AZ-SNA0300
NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures.
  1. Erase the DTC memory.
  1. Turn the ignition switch ON (II), and wait for 10 seconds.
  1. Read the DTC.
Is DTC 43-11 indicated?
YES -
Go to Step 6 .
NO -
Go to Step 4 .
  1. Read the DTC.
Is DTC 43-12 indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If DTC 43-1x except DTC 43-11 and 43-12 is indicated, faulty left side impact sensor (first); replace the left side impact sensor (first).
  1. Read the DTC.
Is DTC 45-11 also indicated?
YES -
Faulty left side impact sensor (first); replace the left side impact sensor (first). ■
NO -
Go to Step 6 .
  1. Turn the ignition switch OFF.
  1. Disconnect the negative cable from the battery, and wait for 3 minutes.
  1. Disconnect both seat belt tensioner 4P connectors and both seat belt buckle tensioner 4P connectors.
  1. Disconnect the floor wire harness 4P connector (A) from the left side impact sensor (first).
  1. Disconnect SRS unit connector B (28P) from the SRS unit.