Signal Too High. Intermittent Fault
Signal too high. Intermittent fault
Checking the component
- Ignition on
- Check the potentiometer connector. Check for an intermittent short-circuit to supply voltage. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults. Check for contact resistance and oxidation. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Connect a voltmeter between potentiometer connector 1 and ground.
Check for an intermittent short-circuit to supply voltage. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Connect the voltmeter between potentiometer connector 2 and ground.
Take the same reading as above.
Connect the voltmeter between potentiometer connector 3 and ground.
Take the same reading as above.
Replace the potentiometer if a short-circuit is found.
Remedy as necessary.
Other information:
- To connect the breakout box, see Connecting the convertible control unit breakout box Connecting the Breakout Box
- 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 access or replace the potentiometer for the convertible top, see Replacing the potentiometer Replacing the Potentiometer.
Was a short-circuit found?
Yes - Calibrating the convertible system
No - Checking connectors and wiring
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Checking connectors and wiring
- 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. Check for contact resistance and oxidation. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults
- Ignition on.
Connect a voltmeter between control module connector C5 and ground.
Check for an intermittent short-circuit to supply voltage. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Connect a voltmeter between control module connector C6 and ground.
Take the same reading as above.
Connect a voltmeter between control module connector C7 and ground.
Take the same reading as above.
Remedy as necessary.
Other information
- To connect the breakout box, see Connecting the convertible control unit breakout box Connecting the Breakout Box
- 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 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 components and wiring
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Checking components and wiring
- Ignition off.
Connect an ohmmeter between control module connector C5 and potentiometer connector 1.
Check for an intermittent open-circuit. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Connect an ohmmeter between control module C6 and potentiometer 2.
Take the same reading as above.
Connect an ohmmeter between control module C7 and potentiometer 3.
Take the same reading as above.
Remedy as necessary.
Other information
- To connect the breakout box, see Connecting the convertible control unit breakout box Connecting the Breakout Box
- 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 access or replace the potentiometer for the convertible top, see Replacing the potentiometer Replacing the Potentiometer
- To access and replace the control module see Replacing the control module Service and Repair.
Was an open-circuit found?
Yes - Fault-tracing information
No - Checking the component
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Checking the component
Note! If there is no open-circuit in the potentiometer, the ohmmeter reads 0 - 15 kohms.
- Ignition off.
Connect an ohmmeter between potentiometer 1 (brown cable) and 2 (yellow cable).
Check for an intermittent open-circuit. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Connect an ohmmeter between potentiometer 1 (brown cable) and 3 (red / white cable).
Take the same reading as above.
Try a new potentiometer if an open-circuit is found.
Remedy as necessary.
Other information
- To connect the breakout box, see Connecting the convertible control unit breakout box Connecting the Breakout Box
- 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 access or replace the potentiometer, see Replacing the potentiometer Replacing the Potentiometer.
Select Continue when the fault has been remedied.
Continue - Calibrating the convertible system
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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 - 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 the component
FAULT-TRACING FAILED - DONE
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