- Verify Condition
Connect NGS tester to DLC. Perform ON-DEMAND SELF-TEST
. If DTC B1935 is retrieved, go to next step. If DTC B1935 is not retrieved, go to step 4).
NOTE:
In the following step, it may be helpful to inspect clockspring-to-main wiring harness connector for an example of a normal shorting bar.
- Perform On-Demand Self Test
Deactivate SRS. See DISABLING & ACTIVATING AIR BAG SYSTEM
. Connect NGS to DLC. Perform ON-DEMAND SELF-TEST
. If DTC B1935 is retrieved, go to next step. If DTC B1935 is not retrieved, examine shorting bars on passenger-side air bag connector. Replace passenger-side air bag module if shorting bars are normal. Go to step 7).
NOTE:
In the following step, it may be helpful to inspect clockspring-to-main wiring harness connector as an example of a normal shorting bar.
- Check Resistance Circuit 616 To 607
Disconnect Air Bag Simulator (105-R0010) from driver-side air bag connector. Disconnect air bag diagnostic monitor. Set ohmmeter to highest scale (200k/ohms or AUTO). Zero ohmmeter by touching leads together. Record resistance reading. Remove plastic locking wedge from Gray harness connector C276 at air bag diagnostic monitor. Measure resistance between diagnostic monitor harness connector terminal C276-4, circuit 616 (Pink/Black wire) and C276-5, circuit 607 (Light Blue/Orange wire). If resistance reading is infinite, examine shorting bars on air bag diagnostic connector. Replace air bag diagnostic monitor if shorting bars are normal. See DIAGNOSTIC MONITOR
under REMOVAL & INSTALLATION. Reconnect and verify system. Go to step 7). If resistance is not as specified, repair short between circuit 616 (Pink/Black wire) and 607 (Light Blue/Orange wire). Reconnect, verify, and reactivate system. See DISABLING & ACTIVATING AIR BAG SYSTEM
. Go to step 7).
- Check For DTC Service
Deactivate system. See DISABLING & ACTIVATING AIR BAG SYSTEM
. If DTC B1935 has just been repaired, go to step 7). If DTC B1934 has not just been repaired, go to next step.
- Check Shorting Bars
Disconnect air bag diagnostic monitor. Set ohmmeter to lowest scale (200K ohms or AUTO). Zero ohmmeter by touching leads together and record reading. Remove plastic locking wedge from Gray harness side connector at base of steering column. Measure resistance between diagnostic monitor harness connector terminal C276-4, circuit 616 (Pink/Black wire) and C276-5, circuit 607 (Light Blue/Orange wire) while wiggling wires at passenger-side air bag module connector where it mates to harness. Subtract reading found when zeroing ohmmeter. Visually inspect shorting bars at passenger-side air bag and clockspring Gray harness connector for signs of poor operation. If resistance is greater than 0.7 ohm or no wiring problems present, go to next step. If resistance is not as specified or other problems present, service as necessary. Go to step 7).
- Check Circuits 607 and 616
Inspect wiring and connections in circuits 607 (Light Blue/Orange wire) and 616 (Pink/Black wire) for potential intermittent shorts between circuits. Examine harness connection air bag wires for same condition. If problems are noted, repair as necessary and replace passenger-side air bag if wiring is damaged. Go to next step. If no problems are noted, re-examine fault code and look for causes of intermittent high resistance or open in appropriate circuits. Attempt to recreate hard faults by driving vehicle, flexing wiring harnesses, etc. Repair intermittent problems and go to next step.
- Check For Other DTCs
Connect NGS to DLC. If other DTCs are retrieved go to proper DTC test. If no other DTCs are retrieved, reactivate system and clear all DTCs. See DISABLING & ACTIVATING AIR BAG SYSTEM
.