ID Missing

ID missing

Checking the function




- Engine running.
Check that all the functions can be activated via the lower switch.

Hint: Where applicable, the LED on the lower switch must be lit when the function is activated.

Are all functions activated?

Yes - Fault-tracing information

No - Checking the component

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Checking the component




- Ignition on.

Note! The switches can be placed in any position in the climate control assembly (without internal order). The position of the switches must be taken into account when fault-tracing with VCT2000.The switch that is furthest to the left in the climate control assembly corresponds to no. 1 in VCT2000. VCT2000 then follows the numbering in order to the switch furthest to the right, which is designated no. 7.

Read off the identities of the switches. Check that the read off identity corresponds to the switch marking for its position in the dashboard environment panel. The switch is defective or missing if the identity does not correspond.







Continue - Verification

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Fault-tracing information
The fault has probably occurred as a result of a defect or intermittent defect or a missing switch. If the fault is intermittent, it has been registered previously but is no longer present.
Intermittent faults can be caused by interference at start up of the control module or may be a different type of fault which occurs on different occasions. The fault is evaluated depending on how it occurs. If the fault recurs, replace the switch.


Continue - Information

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Verification

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








- Ignition off.

Note! Wait at least 1 minute before "Ignition on". This is to allow the climate control module (CCM) to carry out a new diagnostic.

- Reinstall the connectors, components etc.
- Ignition on
- Read off diagnostic trouble codes (DTCs).
The fault is no longer present if the status of the diagnostic trouble code (DTC) has changed to intermittent.





Does the status change?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - Fault Found

VERIFICATION FAILED - Information

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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 - FAULT-TRACING FAILED

No - Attempt New Test

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Attempt New Test - Checking the function

FAULT-TRACING FAILED - No Fault Found

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Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - Fault Found

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FAULT FOUND - Fault Found

Attempt New Test - Checking the function

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