Faulty Signal. Intermittent Fault

Faulty signal. Intermittent fault

Checking the wiring








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

Note! Diagnostic trouble code (DTC) SRS-312 or SRS-322 is stored after the measurement is taken. Ignore the DTC which is stored as a result of this reading.

Connect an oscilloscope between seat belt tensioner 1 and ground. Take a reading for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
The oscilloscope should indicate a spiked pulse with a cyclic time of approximately 500 ms and an offset off approximately 2 V.
If the value deviates there is a short-circuit in the cable. Replace the cable harness.
Remedy as necessary.

Other information:
- To access / replace the seat belt tensioner, see Seat belts replacement, rear seat Rear Seat Belts.









Select Continue when the fault has been remedied.

Continue - Fault-tracing information
DONE

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Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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FAULT-TRACING FAILED - DONE

Attempt New Test - Checking the wiring

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