Internal Fault

Internal fault

Replacing the component




- Switch off the ignition. Wait 10 seconds.
- Unplug the 10-pin connector from the occupant weight sensor (OWS).
- Unplug the 3-pin connector from the pressure sensor.
Check the connectors between the pressure sensor and the occupant weight sensor (OWS) for damaged pins and connections.
Remedy as necessary.
Check the leads between pressure sensor and the occupant weight sensor (OWS) for short-circuiting to voltage/ground and open circuit.
Remedy as necessary.

Caution! Avoid touching the contact pin of the occupant weight sensor (OWS). Risk of electrostatic discharge that may cause damage in occupant weight sensor (OWS).

If no malfunction is found: Replace the pressure sensor and the occupant weight sensor (OWS) module. The pressure sensor and occupant weight sensor (OWS) module are included in the occupant weight sensor (OWS) system.

Note! After replacing the pressure sensor and the occupant weight sensor (OWS) module in the occupant weight sensor (OWS) system, calibration of the occupant weight sensor (OWS) must be carried out.

Other information
- To access or replace the occupant weight sensor (OWS) and the connectors, see: Front passenger weight sensor Removal and Replacement
- Calibrating the occupant weight sensor (OWS) Testing and Inspection
- Signal description occupant weight sensor (OWS): Signal specification Signal Specification, Occupant Weight Sensor (OWS)
- For further information about cable routing and terminals, see the wiring diagram

Continue - Verification

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Verification




Verification

Hint: After carrying out the repair check that the fault has been remedied.




- Switch off the ignition. Wait 10 seconds
- Disconnect the battery negative lead
- Reinstall the connectors, components etc.
- Ignition on
- Connect the battery negative lead. Wait 10 seconds.

Warning! There must not be anyone inside the passenger compartment when the battery is connected.

Read diagnostic trouble codes by clicking the VCT2000 symbol.
If the fault is intermittent, the fault has been remedied.





Is the fault intermittent?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information

FAULT-TRACING FAILED - No Fault Found

Attempt New Test - Replacing the component

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