FixVault
Home › Lexus › 1992 › LS 400 › Repair and Diagnosis › External Pages › Different car › Section 1 (Air Bag Restraint System) › Trouble Shooting › Code 13

Code 13

WARNING: This page is about a different car, the 1994 Lexus LS 400. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: During testing, if codes other than Code 13 are displayed, disregard them.
  1. Disconnect negative battery cable. Wait at least 90 seconds. Remove steering wheel pad. See STEERING WHEEL PAD & SPIRAL CABLE  under REMOVAL & INSTALLATION. Disconnect passenger-side air bag harness connector, accessible through finish plate in glove box. See Figure. Disconnect seat belt pretensioner connectors.
  2. Measure resistance between terminals of spiral cable upper connector (harness side). If resistance is 1000 ohms or more, go to next step. If resistance is less than 1000 ohms, go to step 9).
  3. Connect jumper wire between terminals of spiral cable upper connector, passenger-side air bag connector and both seat belt pretensioner connectors (harness side of each connector). Reconnect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds.
  4. Clear codes. See CLEARING CODES  under SELF-DIAGNOSTIC SYSTEM. Turn ignition switch to LOCK position. Wait at least 20 seconds. Disconnect jumper wire from spiral cable upper connector. Turn ignition switch to ACC or ON position. Wait at least 20 seconds.
  5. Connect jumper wire between terminals Tc and E1 of DLC. See Figure. If Code 13 is not displayed, go to next step. If Code 13 is displayed, replace center air bag sensor.
  6. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect spiral cable upper connector (steering wheel pad). Connect jumper wire between terminals of passenger-side air bag connector and both seat belt pretensioner connectors (harness side of each connector).
  7. Reconnect negative battery cable. Wait at least 2 seconds. Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear codes. See CLEARING CODES  under SELF-DIAGNOSTIC SYSTEM. Turn ignition switch to LOCK position. Wait at least 20 seconds.
  8. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Connect jumper wire between terminals Tc and E1 of DLC. See Figure. If Code 13 is displayed, replace steering wheel pad. If Code 13 is not displayed, check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT  under DIAGNOSIS & TESTING.
  9. Disconnect spiral cable lower connector. Release shorting bar spring (air bag activation prevention mechanism) built into spiral cable upper connector. See RELEASING SHORTING BAR SPRING  under DIAGNOSIS & TESTING. Measure resistance between terminals of spiral cable upper connector (harness side). If resistance is infinite, go to next step. If resistance is not infinite, replace spiral cable.
  10. Disconnect center air bag sensor connector. Release shorting bar spring (air bag activation prevention mechanism) built into center air bag sensor connector. See RELEASING SHORTING BAR SPRING  under DIAGNOSIS & TESTING. Measure resistance between terminals of spiral cable lower connector (harness side). If resistance is infinite, go to next step. If resistance is not infinite, replace harness between center air bag sensor and spiral cable.
  11. Connect center air bag sensor connector. Measure resistance between terminals of spiral cable lower connector (harness side). If resistance is less than 1000 ohms, replace center air bag sensor. If resistance is 1000 ohms or less, check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT  under DIAGNOSIS & TESTING.
About FixVault