Checking the 30 and 15-Supply

Checking the 30 and 15-supply

Checking the 30-supply
Check fuses 11A/4 and 11C/25.
Check the power cable between fuse 11A/4 and fuse 11C/25 for an open-circuit or a short-circuit to ground.

Hint: If the VCT2000 is connected and the green LED lights then fuse 11A/4 is OK.

Remedy as necessary.

Other information:
- Checking wiring and terminals Checking Wiring And Terminals.
- For more information on cable routing, fuses and relays, see the wiring diagram.





Continue - Checking the 30-supply continued

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Checking the 30-supply continued
Check the power cable between fuse 11C/25 and the start switch terminal #30 for an open-circuit or a short-circuit to ground.
Remedy as necessary.

Other information:
- Checking wiring and terminals Checking Wiring And Terminals.
- For more information on cable routing, fuses and relays, see the wiring diagram.









Continue - Checking the 15-supply

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Checking the 15-supply
- Ignition switch position II.
Check that there is contact between start switch terminals #30 and #15.
- Ignition switch position III.
Check that there is contact between start switch terminals #30 and #15.
Check that there is 15-supply from the start switch during the vehicle start attempt. Check the power supply from start switch terminal #15.
If a fault is found during the above fault tracing, replace the start switch.
If no fault is found, check the signal cable between start switch connector #15A and:
- engine control module (ECM) #B37
- central electronic module (CEM) #3B
- relay 2/31, central electronic module (CEM) #2
- Immobilizer antenna unit #1
- supplemental restraint system module (SRS) #28B for open-circuit or short-circuit to ground.
Remedy as necessary.

Other information:
- For connection of breakout box to engine control module (ECM): Connecting the breakout box, B5254T2 Connecting the Test Box.
- For connection of breakout box to central electronic module (CEM): Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM).
- For connection of breakout box to supplemental restraint system module (SRS): Connecting the breakout box Connecting the Breakout Box, Supplemental Restraint System Module (SRS).
- To replace the start switch, see Starter switch, replacing Service and Repair.
- Checking wiring and terminals Checking Wiring And Terminals.
- For more information on cable routing, fuses and relays, see the wiring diagram.









Select "Continue" to continue fault-tracing.

Continue - Verification

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Verification

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








- Reinstall the connectors, components etc.
- Start the engine.

Does the engine start?

Yes - FAULT FOUND

No - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit Fault-Tracing

No - Attempt New Test

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Attempt New Test - Checking the 30-supply

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