DTC Troubleshooting: 12-8x
|DTC 12-8x (12-80 to 12-89, 12-8A to 12-8F):||Short to Power in Driver's Airbag First Inflator (RHD type)|
Special Tools Required
SRS inflator simulator ( 07SAZ-TB4011A)
|1.||Erase the DTC memory.|
|2.||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 12-8x indicated?
YES - Go to 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.
|3.||Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.|
|4.||Disconnect the driver's airbag 2P connector (A) from the cable reel.|
|5.||Connect the SRS inflator simulator (2 W connectors) and simulator lead C to the cable reel.|
|6.||Reconnect the battery negative cable.|
|7.||Erase the DTC memory.|
|8.||Read the DTC.|
Is DTC 12-8x indicated?
YES - Go to 9.
NO - Short to power in the driver's airbag fitst inflator; replace the driver's airbag.n
|9.||Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.|
|10.||Disconnect SRS unit connector A (28P) from the SRS unit. Do not disconnect SRS simulator lead from cable reel 2P connector.|
|11.||Disconnect the SRS inflator simulator from the SRS simulator lead.|
|12.||Reconnect the battery negative cable.|
|13.||Turn the ignition switch ON (II).|
|14.||Check for voltage between each terminal of the SRS simulator lead C and body ground. There should be 0.5 V or less.|
Is the resistance as specified?
YES - Faulty SRS unit; replace the SRS unit.n
NO - Go to 15.
|15.||Turn the ignition switch OFF.|
|16.||Disconnect the cable reel from dashboard wire harness B.|
|17.||Turn the ignition switch ON (II).|
|18.||Check for voltage between each terminal of the SRS simulator lead and body ground. There should be 0.5 V or less.|
Is the voltage as specified?
YES - Replace dashboard wire harness B.n
NO - Replace the cable reel.n