Faulty Signal. Intermittent Fault

Faulty signal. Intermittent fault

Mechanical check
Carry out a mechanical check according to Mechanical check Mechanical Check.

Was a fault detected?

Yes - Fault-tracing information

No - Checking motors and wiring

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Checking motors and wiring




- Ignition off
- Check control module connector D for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults
Connect an ohmmeter in order between:
D1 and D7, motor, front lock.
D2 and D8, motor, front lock.
D3 and D9, motor, tension bow, left-hand side.
D4 and D10, motor, tension bow, right-hand side.
D5 and D11, motor, convertible top, left-hand side.
D6 and D12, motor, convertible top, right-hand side.
D13 and D14, motor, rear latch arms.
Check the motors and cables. Check for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Disconnect the relevant motor if an open-circuit is found.
Check the motor connector. Check for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Connect an ohmmeter to the motor between 1 and 2. Check for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Replace the motor if an open-circuit is found.
If there is no open-circuit in the motor the fault is in the cable between the control module and the motor.
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 relevant motor, see Replacing motors Service and Repair
- To access or replace the control module see Replacing the control module Service and Repair.









Was an open-circuit found?

Yes - DONE Fault-tracing information

No - Checking components and wiring

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Checking components and wiring
- Check control module connector D. Check for a short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Connect an ohmmeter in order between:
D1 and ground, motor, front lock.
D7 and ground, motor, front lock.
D2 and ground, motor, front lock.
D8 and ground, motor, front lock.
D3 and ground, motor, tension bow, left-hand side.
D9 and ground, motor, tension bow, left-hand side.
D4 and ground, motor, tension bow, right-hand side.
D10 and ground, motor, tension bow, right-hand side.
D5 and ground, motor, convertible top, left-hand side.
D11 and ground, motor, convertible top, left-hand side.
D6 and ground, motor, convertible top, right-hand side.
D12 and ground, motor, convertible top, right-hand side.
D13 and ground, motor, rear latch arms.
D14 and ground, motor, rear latch arms.
Test for a short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
If a short-circuit is found, check the relevant motor connector for a short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Connect an ohmmeter between 1 and ground and 2 and ground on the relevant motor. Check for a short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Replace the motor if a short-circuit is found.
If there is no short-circuit to ground in the motor, there is probably a fault in the cable between the control module and the motor.
Remedy as necessary.

Other information:
- To access and replace the relevant motor, see Replacing motors Service and Repair.









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 motors and wiring

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