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DTC B2446-B2447-B2448-B2449

WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure ignition is off. Disconnect right seat belt pretensioner connector. Check terminals for open circuit or pin slide-out. Repair as necessary. Install Reference Resistor (86 12 095) into right seat belt pretensioner harness connector. Disconnect air bag control module wire harness connector. Check air bag control module harness connector terminals No. 15 (Blue-Red wire) and No. 45 (Yellow-Red wire) for open circuit or pin slide-out. Repair as necessary. See Figure. Install air bag control module harness connector to Breakout Box (BOB).
  2. For diagnostic trouble codes B2446 or B2447, go to next step. For diagnostic trouble codes B2448 or B2449, go to step  4.
  3. Measure resistance between BOB test pins No. 15 and 45. If resistance is 2-4 ohms, replace seat belt pretensioner. Go to step  6. If resistance is not 2-4 ohms, repair or replace Blue-Red wire or Yellow-Red wire between air bag control module and seat belt pretensioner. See WIRING DIAGRAMS . Go to step  6.
  4. Measure resistance between ground and BOB test pin No. 15. If resistance is infinite, go to next step. If resistance is not infinite, repair or replace Blue-Red wire between air bag control module and seat belt pretensioner. Go to step  6.
  5. Measure resistance between ground and BOB test pin No. 45. If resistance is finite, replace seat belt pretensioner. Go to next step. If resistance is not infinite, repair or replace Yellow-Red wire between air bag control module and seat belt pretensioner. Go to next step.
  6. Reassemble vehicle. Clear diagnostic codes in all systems. Road test vehicle at various speeds and loads. Verify that no diagnostic trouble codes are present. If no diagnostic trouble codes are present, repairs are complete. If diagnostic trouble codes are present, go to BEFORE REPLACING AIR BAG CONTROL MODULE  under DIAGNOSTICS.
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