Current Too High. Intermittent Fault
Current too high. Intermittent fault
Mechanical check
Carry out mechanical check according to: Replacing and adjusting micro-switches Replacing and Adjusting Micro-Switches
Was the fault found?
Yes - Fault-tracing information
No - Checking connectors and wiring
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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 terminal #D1 and ground, front lock motor.
Check for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Read off the program status of the convertible top. Check the values at the relevant step.
Remedy as necessary.
Other information:
- For the comment sheet, see Diagnostic list for convertible tops Diagnostic List For Convertible Tops
- For other values, see Opening and closing the convertible top Opening and Closing the Convertible Top
- To connect the breakout box, see Connecting the convertible control unit breakout box Connecting the Breakout Box
- To access and replace the control module see Replacing the control module Service and Repair.
Was a short-circuit found?
Yes - Fault-tracing information
No - Checking the component
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Checking the 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 terminal #1 and ground.
Check 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 or replace the motor for the front lock, see Replacing motors Service and Repair.
Was a short-circuit found?
Yes - Fault-tracing information
No - Checking the cable
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Checking the cable
- Check that the micro-switch appears normal
- Ignition on
- Read off the status of the micro-switch for the front locking arm, rear position
- Operate the micro-switch manually.
The status should change from activation (micro-switch on) to non activation (micro-switch off).
Other information:
- 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 - Fault-tracing information
No - Checking the component
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Checking the component
- Check control module connector C. Check for an intermittent short-circuit to supply voltage. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults
- Ignition on.
Connect a voltmeter between micro-switch terminal #1 and ground.
Activate the micro-switch manually so that it is active throughout the test
Check 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:
- 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.
- For other values, see Opening and closing the convertible top Opening and Closing the Convertible Top
- To connect the breakout box, see Connecting the convertible control unit breakout box Connecting the Breakout Box
- To access or replace the control module, see Replacing the control module Service and Repair.
Was a short-circuit found?
Yes - 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 the micro-switch connector. Check for contact resistance and oxidation. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults
- Ignition off.
Connect an ohmmeter between micro-switch terminals #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 micro-switch for the front locking arm, 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:
- 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 the fault found?
Yes - Fault-tracing information
No - No Fault Found
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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 - Mechanical check
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