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Home >> Isuzu >> 2002 >> Axiom Base, RWD >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Air Bag Restraint Systems >> Diagnostic Tests >> DTC 18: Passenger Deployment Loop Short To Ground >> Diagnostic Procedure

Diagnostic Procedure

  1. If SIR diagnostic system check has been performed, go to next step. If SIR diagnostic system check has not been performed, go to SRS DIAGNOSTIC SYSTEM CHECK .
  2. Turn ignition off. Connect scan tool to Data Link Connector (DLC), located under left side of instrument panel. Turn ignition on. Read passenger SENSE LO on scan tool display. If passenger SENSE LO is less than 1.5 volts, go to next step. If passenger SENSE LO is 1.5 volts or more, go to SDM INTEGRITY CHECK .
  3. Turn ignition off. Disconnect passenger-side air bag Yellow 2-pin connector, located behind glove box assembly. Connect SRS Driver/Passenger Load Tool (J-41433) and appropriate adapter to passenger-side air bag assembly harness connector. Turn ignition on. If DTC 18 is current, go to next step. If DTC 18 is not current, replace passenger-side air bag. See AIR BAG ASSEMBLIES  under REMOVAL & INSTALLATION. Go to step  6.
    NOTE: Use Digital Multimeter (J-39200) and Terminal Adapter Kit (J-35616-A) when performing electrical tests.
  4. Turn ignition off. Disconnect SDM. Disconnect SRS driver/passenger load tool. Measure resistance between SDM harness connector terminals No. 15 (Yellow/Green wire) and 6 (Black wire). See Figure. If resistance is infinite, go to next step. If resistance is less than infinite, replace SRS harness. Go to step  6.
  5. Measure resistance between SDM harness connector terminals No. 16 (Yellow/Red wire) and 6 (Black wire). See Figure. If resistance is infinite, go to SDM INTEGRITY CHECK . If resistance is less than infinite, replace SRS harness and go to next step.
  6. Reconnect all SRS components. Ensure all components are properly mounted. Using scan tool, clear DTC's. Go to SRS DIAGNOSTIC SYSTEM CHECK .
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