Pinpoint Test C : B1078:12, B1078:14, B1078:29: Notes
B1078:12, B1078:14, B1078:29
Refer to Convertible Top for schematic and connector information.
Normal Operation and Fault Conditions
The convertible top latch switch is hardwired to the Moveable Roof Control Module A (MRCMA) / Convertible Top Motor 1. The Moveable Roof Control Module A (MRCMA) / Convertible Top Motor 1 sends out a 5 volt reference signal to the Hall-effect switch and receives a voltage signal input back from the switch when the latch is open. When the latch switch or circuit is faulted, the convertible top may close, but does not open. Also, depending on the nature of the fault, the message center may display the TOP NOT SECURE. The convertible top latch switch is part of the convertible roof latch and striker assembly.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1078:12 | Convertible Top Latched Sensor: Circuit Short To Battery | This DTC sets if the convertible top latch switch voltage signal sent to the Moveable Roof Control Module A (MRCMA) / Convertible Top Motor 1 is shorted to battery voltage. |
| B1078:14 | Convertible Top Latched Sensor: Circuit Short To Ground or Open | This DTC sets if the convertible top latch switch voltage signal sent to the Moveable Roof Control Module A (MRCMA) / Convertible Top Motor 1 is shorted to ground or open. |
| B1078:29 | Convertible Top Latched Sensor: Signal Invalid | This DTC sets if the Moveable Roof Control Module A (MRCMA) / Convertible Top Motor 1 receives an implausible signal from the convertible top latch switch. |
Possible Sources
- Wiring, terminals or connectors
- Convertible top latch assembly
- Moveable Roof Control Module A (MRCMA) / Convertible Top Motor 1