Signal Too High - Intermittent Fault

Checking Cable







- Ignition off.
- Disconnect connector from seat belt tensioner,
- Ignition on.

Connect oscilloscope between seat belt tensioner #1 and ground. Measure for an intermittent short-circuit to supply voltage according to Checking wiring and terminals - Intermittent faults

The oscilloscope should now display a spiked pulse with an interval of approximately 500 ms.

If the value deviates it indicates that the cable is short-circuited. Replace the cable harness.

Also measure between seat belt tensioner #2 and ground.

The oscilloscope should not give a reading.

Remedy as necessary.

Checking Wiring and Terminals - Intermittent Faults