DTC Troubleshooting: 45-1x

DTC 45-1x (45-10 to 45-19, 45-1A to 45-1F): No Signal from the Left Side Impact Sensor (second) Special Tools Required SRS inflator simulator 07SAZ-TB4011A SRS simulator lead H 07YAZ-S3A0100 Erase the DTC memory. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off. Does the SRS indicator stay on and is DTC 45-1x indicated?
YES | - | Go to Step 3 .
NO | - | Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC troubleshooting index for troubleshooting details.
Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes. Check the connection between the side curtain airbag subharness 2P connector and the left side impact sensor (second). Is the connection OK?
YES | - | Go to Step 5 .
NO | - | Replace the left side impact sensor (second) and/or the side curtain airbag subharness, as needed. ■
Disconnect the left side curtain airbag 2P connector (A) and side curtain airbag subharness. |

Disconnect the side curtain airbag subharness 2P connector (A) from the left side impact sensor (second). Connect the SRS inflator simulator (jumper connector) and simulator lead H to the side curtain airbag subharness. |

Disconnect SRS unit connector C (16P) from the SRS unit. |

Check resistance between the No. 9 and No. 10 terminals of SRS unit connector C (16P). There should be 1.0 Ω or less. Is the resistance as specified?
YES | - | Faulty left side impact sensor (second) or SRS unit; replace the left side impact sensor (second). If the problem is still present, replace the SRS unit. ■
NO | - | Open or increased resistance in the side curtain airbag subharness; replace the side curtain airbag subharness.■