Checking The Tachometer

Checking the tachometer

Activating the tachometer








- Ignition on.
Click the VCT2000 symbol to activate the tachometer test function. Check that the gauge is operating correctly. If the tachometer does not react to activation it indicates that the combined instrument panel is faulty. Try a new combined instrument panel.

Other information
- For information about activating the tachometer, see Description of component / function activation Description Of Component / Function Activation
- To access or replace the combined instrument panel, see Driver information module, removing/installing Removal and Replacement





Did the tachometer function?

Yes - No Fault Found

No - Verification

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Verification




Verification

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








- Ignition off.
- Reinstall the connectors, components etc.
- Start the engine.
Check that the tachometer is working. Try increasing the engine speed. Check that the tachometer readings are within their permitted range.

Does the tachometer work? Is the value within its permitted range?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - 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 - Activating the tachometer

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