Current Too High. Permanent Fault
Current too high. Permanent fault
Mechanical check
Carry out the mechanical check according to Mechanical check Mechanical Check.
Was a fault found?
Yes - Verification
No - Checking the values
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Checking the values
- Ignition on
- Connect the Volvo Scan Tool (ST).
Read off the program status of the convertible top. Check the values at the relevant step.
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.
Are these values correct?
Yes - Checking connectors and wiring
No - Replacing the potentiometer
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Replacing the potentiometer
Replace the potentiometer. See Replacing the potentiometer Replacing the Potentiometer.
Continue - Calibrating the convertible system
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Checking connectors and wiring
- Ignition off
- Check control module connector D. Check for a short-circuit to supply voltage. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
- Ignition on.
Connect a voltmeter in order between:
terminal #D5 motor and ground, convertible top, left-hand side.
#D12 motor and ground, convertible top, right-hand side.
Check for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.
Other information:
- 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 - Verification
No - Checking the engine
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Checking the engine
- Ignition off
- Check the relevant motor connector for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
- Ignition on.
Connect a voltmeter between motor terminal #1 and ground and between terminal #2 and ground. Check for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Replace the motor if there is a short-circuit in the motor.
If no fault is found, there is probably a short-circuit in the cable between the control module and the motor connectors.
Remedy as necessary.
Other information:
- To access and replace the relevant motor, see Replacing motors Service and Repair.
Was a short-circuit found?
Yes - Verification
No - Checking the wiring
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Checking the wiring
- Check that the micro-switch for the tensioner rib appears normal
- Ignition on
- Read off the status of the micro-switch
- Operate the micro-switch manually.
The status should change from activation (micro-switch on) to non activation (micro-switch off).
Remedy as necessary.
Other information:
- To access and replace the micro-switch for the tensioner rib see Replacing and adjusting micro-switches Replacing and Adjusting Micro-Switches
- There is a short-circuit to ground if the status is constantly low
- There is an open-circuit or a short-circuit to voltage if the status is constantly high.
Hint: The micro-switch can be activated by hand or using a pointed tool. Be careful.
Does the status change?
Yes - Verification
No - Checking the component
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Checking the component
- Check the micro-switch connector and control module connector C for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Connect an ohmmeter between micro-switch terminals #1 and #2.
Activate the micro-switch manually so that it is active throughout the test.
Test for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Replace the micro-switch if an open-circuit is found.
Remedy as necessary.
Other information:
- To access or replace the control module see Replacing the control module Service and Repair
- To access and replace the micro-switch for the tensioner rib 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 an open-circuit found?
Yes - Verification
No - Checking the component
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Checking the component
- Check the micro switch connector and control module connector C. Check for a short-circuit to supply voltage. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
- 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 a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Replace the micro-switch if an open-circuit is found.
If no fault is found there is probably a fault in the cable between the control module and the micro-switch connectors.
Remedy as necessary.
Other information:
- To access or replace the control module see Replacing the control module Service and Repair
- To access and replace the micro-switch for the tensioner rib 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 the fault found?
Yes - Verification
No - No Fault Found
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Verification
Verification
Hint: After the repair it is necessary to check that the fault has been rectified.
- Ignition off
- Connect the connectors, install the components, etc.
- Ignition on
- Apply parking brake
- Close the luggage compartment lid
- Speed < 4km/h.
Operate the control switch to move the convertible top.
Move the convertible top to its end positions.
Does the convertible top work?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFICATION FAILED - Fault-tracing information
VERIFIED - FAULT FOUND
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Calibrating the convertible system
It is important that the potentiometer values are calibrated and programmed into the control module if the potentiometer has been replaced. Carry out programming and calibration in VIDA.
Continue - Verification
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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 - Mechanical check
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