Fault-Tracing Information

Fault-tracing

Checking the wiring and terminals








- Ignition off, wait for 15 seconds.
- Disconnect the connector from the front left-hand side impact sensor.
- Disconnect the connector for Supplemental restraint system module (SRS).
Check connectors for damage to pins and connections.
Check the connectors. Check for loose connections. Check for contact resistance. Check for oxidation.
Also check the other connectors and terminals that join the cables between the supplemental restraint system module (SRS) and the collision sensor.
Check the cable. Check for an open-circuit. Check for a short-circuit to supply voltage.
Take readings between:
- Supplemental restraint system module (SRS) terminal #C1:50(#B50) and the connector for the front left side impact sensor terminal #1.
- Supplemental restraint system module (SRS) terminal #C1:49(#B49) and the connector for the front left side impact sensor terminal #2.
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.
- Collision sensor, B-pillar Collision Sensor, B-Pillar
- 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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