DTC Troubleshooting: 21-1x
|DTC 21-1x (21-10 to 21-19, 21-1A to 21-1F):||Open or Increased Resistance in Left Side Seat Belt Tensioner|
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 21-1x 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 negative cable from the battery, and wait for 3 minutes.|
|4.||Disconnect the floor wire harness 4P connector (A) from the left side seat belt tensioner.|
|5.||Connect the SRS inflator simulator (2 W connectors) and simulator lead K to the floor wire harness.|
|6.||Reconnect the negative cable to the battery.|
|7.||Erase the DTC memory.|
|8.||Read the DTC.|
Is DTC 21-1x indicated?
YES - Go to 9.
NO - Open or increased resistance in the left side seat belt tensioner; replace the left side seat belt.n
|9.||Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.|
|10.||Disconnect the front right side seat belt tensioner connector.|
|11.||Disconnect SRS unit connector B (28P) from the SRS unit.|
|12.||Check resistance between the No. 1 and the No. 2 terminals of SRS unit connector B (28P). There should be 2.0-3.0 W.|
Is the resistance as specified?
NO - Open or increased resistance in the floor wire harness; replace the floor wire harness.n