Test A: the Convertible Top Does Not Raise/Lower

PINPOINT TEST A: THE CONVERTIBLE TOP DOES NOT RAISE/LOWER

A1-A2:

A3-A9:

A9-A11:

A12-A16:

A16-A17:

A17-A18:

A18 Continued:

A19-A20:

A20 Continued:

A21-A22:

A23-A24:

A24-A25:

A25-A26:

A26-A27:

A28:

A29-A31:

Normal Operation
The convertible top switch supplies a ground signal for the smart junction box (SJB) on circuits 2038 (LB/OG) when the switch is in the lower position, and 2052 (VT/OG) when the switch is in the raise position. If vehicle speed is less than 5 km/h (3 mph), the SJB grounds the appropriate relay (using either circuit 1174 [WH/RD] or circuit 588 [VT]) to direct voltage through the convertible top motor to raise or lower the convertible top. When the raise or lower relay is operating, the other relay remains in its normal state and supplies the motor/pump ground. When the SJB receives a request to operate the convertible top, the front and rear windows open to the full down position. The SJB monitors the status of the rear windows on circuit 2012 (RD/BK) for the right rear window, and circuit 2014 (YE/LB) for the left rear window. When the SJB receives a full down input for both rear windows, the convertible top operation is enabled. If the SJB does not receive a full down input for both rear windows, the convertible top operation is disabled. Window operation is disabled when the convertible top raise/lower switch is active.

The convertible top motor/pump assembly is equipped with a thermal circuit breaker. The circuit breaker typically resets after 5 minutes depending on the ambient temperature. The thermal circuit breaker cannot be repaired and must be installed as a unit with the motor/pump assembly.

Possible Causes
- Fuse(s)
- Circuit 588 (VT) open, short to ground or short to voltage
- Circuit 902 (YE) open
- Circuit 903 (RD) open
- Circuit 1174 (WH/RD) open, short to ground or short to voltage
- Circuit 1205 (BK) open
- Circuit 2012 (RD/BK) open
- Circuit 2014 (YE/LB) open
- Circuit 2038 (LB/OG) open or short to ground
- Circuit 2052 (VT/OG) open or short to ground
- Convertible top raise relay
- Convertible top lower relay
- Convertible top switch
- Bussed electrical center (BEC)
- SJB
- LH or RH rear window motor