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Code 53

WARNING: This page is about a different car, the 1995 Toyota Paseo. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: During testing, if codes other than Code 53 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.
  2. Measure resistance between terminals of passenger-side air bag connector. If resistance is less than 1000 ohms, go to step 7). If resistance is 1000 ohms or more, connect a jumper wire between terminals of spiral cable upper connector. See Figure. Connect a jumper wire between terminals of passenger-side air bag connector.
  3. Reconnect negative battery cable. Wait at least 2 seconds. Turn ignition switch to LOCK position. Wait at least 2 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. Disconnect jumper wire from passenger-side air bag connector.
  4. Use Wiring Check Harness (09843-18020) to connect terminals Tc and E1 of DLC. See Figure. If Code 53 is displayed, replace center air bag sensor. If Code 53 is not displayed, turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
  5. Reconnect passenger-side air bag connector. Reconnect negative battery cable. Wait at least 2 seconds. Turn ignition switch to LOCK position. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear codes. See CLEARING CODES  under SELF-DIAGNOSTIC SYSTEM.
  6. Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Use Wiring Check Harness (09843-18020) to connect terminals Tc and E1 of DLC. See Figure. If Code 53 is displayed, replace passenger-side air bag. If Code 53 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT  under DIAGNOSIS & TESTING.
  7. Disconnect center air bag sensor connector. Release shorting bar spring in center air bag sensor connector. See RELEASING SHORTING BAR SPRING  under DIAGNOSIS & TESTING. Measure resistance between terminals of passenger-side air bag connector.
  8. If resistance is less than 1000 ohms, replace harness between center air bag sensor and passenger-side air bag or repair front air bag sensor connector. See WIRE REPAIR . If resistance is 1000 ohms or more, reconnect center air bag sensor connector.
  9. Measure resistance between terminals of passenger-side air bag connector. If resistance is less than 1000 ohms, replace center air bag sensor. If resistance is 1000 ohms or more, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT  under DIAGNOSIS & TESTING.
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