Operation CHARM: Car repair manuals for everyone.

Current Too High. Intermittent Fault






Current too high. Intermittent fault

Checking connectors and wiring




- Check control module connector D for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
- Ignition on.
Connect a voltmeter between control module connector D1 and ground, front lock motor.
Measure for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Remedy as necessary.

Other information:
- To access / replace the control module, see Replacing the control module Service and Repair.
- To connect the breakout box, see Connecting the convertible control unit breakout box Connecting the Breakout Box.









Was a short-circuit found?

Yes - DONE Fault-tracing information

No - Checking component

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Checking component




- Check the relevant motor connector for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
- Ignition on.
Connect a voltmeter between motor 1 and ground.
Measure for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Remedy as necessary.

Other information:
- To access / replace the motor for the front lock, see Replacing motors Service and Repair.









Was a short-circuit found?

Yes - DONE Fault-tracing information

No - Checking wiring

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Checking wiring




- Check that the micro-switch appears normal.
- Ignition on.
- Read off status for the front locking arm micro-switch, rear position.
- Operate the micro-switch manually.
The status should change from activation (micro-switch on) to non activation (micro-switch off).

Other information:
- To access / replace the front locking arm micro-switch, rear position, see Replacing and adjusting micro-switches Replacing and Adjusting Micro-Switches.
- There is a short-circuit to ground if the status is constantly low.
- If the status is constantly high there is an open-circuit or a short-circuit to ground.

Hint: The micro-switch can be activated by hand or using a pointed tool. Be careful.





Does the status change?

Yes - DONE Fault-tracing information

No - Checking component

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Checking component




- Check control module connector C for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
- Ignition on.
Connect a voltmeter between micro-switch 3 and ground.
Activate the micro-switch manually so that it is active throughout the test
Measure for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Replace the micro-switch if a short-circuit is found.
Remedy as necessary.













Other information:
- To access / replace the locking arm micro-switch, rear position, see Replacing and adjusting micro-switches Replacing and Adjusting Micro-Switches.

Hint: The micro-switch can be activated by hand or using a pointed tool. Be careful.

Was a short-circuit found?

Yes - DONE Fault-tracing information

No - Checking for an open-circuit in the micro-switch

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Checking for an open-circuit in the micro-switch




- Check control module connector C and micro-switch connector for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
- Ignition off.
Connect an ohmmeter between micro-switch 3 and 4.
Activate the micro-switch manually so that it is active throughout the test.
Check for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
If an open-circuit is found, replace the front locking arm micro-switch, rear position.
If no fault is found there is probably a fault in the cable between the control module and the micro-switch connector.
Remedy as necessary.













Other information:
- To access / replace the front locking arm micro-switch, rear position, see Replacing and adjusting micro-switches Replacing and Adjusting Micro-Switches.

Hint: The micro-switch can be activated by hand or using a pointed tool. Be careful.

Select Continue when the fault has been remedied.

Continue - DONE Fault-tracing information

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Fault-tracing information




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-TRACING FAILED - DONE

Attempt New Test - Checking connectors and wiring

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