Fault-Tracing Information

Fault-tracing

Checking the wiring and terminals








- Ignition off, wait for 15 seconds.
- Disconnect the connector from the front passenger airbag switch.
- Disconnect the connector for Supplemental restraint system module (SRS).

Hint: Check if other diagnostic trouble codes (DTCs), with the same type of fault, are stored in the supplemental restraint system module (SRS).
The fault is due to a short-circuit to another circuit in the SRS (supplemental restraint system).

Check connectors for damage to pins and connections.
Also check the other connectors and terminals that join the cables between the supplemental restraint system module (SRS) and the switch.

Note! The connector to the components in the other circuit must be disconnected before a reading is taken.

Check the cable for a short-circuit to another circuit. The resistance reading should read infinite resistance.
Take readings between:
- The connector to the front passenger switch terminal #2 and all terminals in the connector to the other component.
- The connector to the front passenger switch terminal #5 and all terminals in the connector to the other component.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Supplemental Restraint System Module (SRS)
- Signal specification Signal Specification, Supplemental Restraint System Module (SRS)
- For further information, see the wiring diagram.
- Wiring harness supplemental restraint system (SRS) Wiring Harness Supplemental Restraint System (SRS)
- Checking wiring and terminals Checking Wiring and Terminals. Permanent Faults

Continue - Powering the SRS system

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Fault-tracing information

Attempt New Test - Checking the wiring and terminals

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Powering the SRS system




Powering the SRS system

Powering the SRS system

Warning! Nobody should be in the passenger compartment when the SRS (supplemental restraint system) is first powered after fault-tracing/repair.

Caution! Ignition off during the entire procedure.








- Reinstall the connectors, components etc.
- If the battery negative lead has been removed: Connect the battery negative lead.
When powering up the SRS-system, other systems and components in the vehicle will also be activated.
Power the SRS (supplemental restraint system) by clicking the VCT2000 symbol.
Performing the service may take up to 15 seconds.





Continue - FAULT FOUND

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FAULT FOUND - Verification

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Verification




Verification

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




- Reinstall the connectors, components etc.
- Switch on the ignition. Wait 10 seconds.
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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VERIFICATION FAILED - Fault-tracing information

VERIFIED - VERIFIED

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