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Circuit Test E - Code 21, Rear SAFING Impact Sensor Not Mounted To Vehicle Properly

NOTE: Before proceeding, follow air bag service precautions. See SERVICE PRECAUTIONS  . After repairs are performed, recheck AIR BAG warning light for other fault codes. Perform system operation check. See TESTING - SYSTEM OPERATION CHECK  .
  1. INITIAL TEST PROCEDURE  - Deactivate SRS. See COMPLETE SYSTEM DEACTIVATION  under DISABLING & ACTIVATING AIR BAG SYSTEM. Disconnect diagnostic monitor connectors. See Figure . Using an ohmmeter, check resistance between terminal No. 16 (Dark/Blue/White wire) of diagnostic monitor Gray connector and ground. See Figure . If resistance is more than 10 ohms, go to step 2). If resistance is less than 10 ohms, replace diagnostic monitor. When repairs are complete, check AIR BAG warning light for codes with Air Bag Simulator(s) (105-00008) still in place of air bag module(s). See TESTING - SYSTEM OPERATION CHECK  . If system checks okay, reactivate SRS.
  2. CHECK REAR SAFING IMPACT SENSOR CIRCUIT  - Disconnect rear safing impact sensor. See Figure . Check resistance between circuit No. 613 (Dark Blue/White wire) of rear safing impact sensor connector and ground. If resistance is more than 10 ohms, go to step 3). If resistance is less than 10 ohms, locates and repair short to ground in circuit No. 613 (Dark Blue/White wire). Reconnect rear safing and diagnostic monitor connectors. When repairs are complete, check AIR BAG warning light for codes with Air Bag Simulator(s) (105-00008) still in place of air bag module(s). See TESTING - SYSTEM OPERATION CHECK  . If system checks okay, reactivate SRS.
  3. VERIFY INOPERATIVE REAR SAFING IMPACT SENSOR  - Remove rear safing impact sensor from vehicle. Clean rear safing impact sensor mounting bracket and vehicle mounting surfaces. Install rear safing impact sensor. Check resistance between circuit No. 613 (Dark Blue/White wire) of rear safing impact sensor connector and ground. If resistance is less than 10 ohms, reconnect rear safing and diagnostic monitor connectors. When repairs are complete, check AIR BAG warning light for codes with Air Bag Simulator(s) (105-00008) still in place of air bag module(s). See TESTING - SYSTEM OPERATION CHECK  . If system checks okay, reactivate SRS. If resistance is more than 10 ohms, replace rear safing impact sensor. Reconnect rear safing and diagnostic monitor connectors. When repairs are complete, check AIR BAG warning light for codes with Air Bag Simulator(s) (105-00008) still in place of air bag module(s). See TESTING - SYSTEM OPERATION CHECK  . If system checks okay, reactivate SRS.
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