DTC Troubleshooting: 31-8x
|DTC 31-8x (31-80 to 31-89, 31-8A to 31-8F):||Short to Power in Left Side Airbag Inflator|
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 31-8x 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 floor wire harness 2P connector (A) from the left side airbag.|
|5.||Connect the SRS inflator simulator (2 W connector) and simulator lead E to the floor wire harness.|
|6.||Reconnect the battery negative cable.|
|7.||Erase the DTC memory.|
|8.||Read the DTC.|
Is DTC 31-8x indicated?
YES - Go to 9.
NO - Short to power in the left side airbag inflator; replace the left side airbag.n
|9.||Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.|
|10.||Disconnect both seat belt tensioner 4P connectors.|
|11.||Disconnect SRS unit connector B [or SRS unit connector C] (28P) from the SRS unit.|
[ ]: With side curtain airbags
|12.||Disconnect the SRS inflator simulator from the SRS simulator lead.|
|13.||Reconnect the battery negative cable.|
|14.||Turn the ignition switch ON (II).|
|15.||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 - Faulty SRS unit or poor contact at SRS unit connector B [or SRS unit connector C] (28P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit.n
NO - Short to power in the floor wire harness; replace the floor wire harness.n