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Fault Code 3



Fault Code 3

Convertible top pot. fault
This fault is entered if the signal input voltage is not within the normal operating range of 0.5 V to 4.4 V three times in succession.

Diagnostic conditions
- Completely open and close convertible top 3 times

Possible cause of fault
- Short circuit to positive, earth or in the wiring between convertible top control unit and potentiometer (convertible top position)
- Potentiometer (convertible top position) faulty
- Convertible top control unit defective

Affected pins
Plug A, pin 12, pin 21 and pin 24

Diagnosis/troubleshooting


Diagnosis/troubleshooting (Part 1):






NOTE:
- The illustration displayed below illustrates the voltage characteristics upon opening the convertible top.
- The voltage characteristics upon closing the convertible top result in a mirror image.





Diagnosis/troubleshooting (Part 2):




Diagnosis/troubleshooting (Part 3):