Engine Codes BUB, CBRA

Coolant Temperature Sensors, Connector Assignment

Engine coolant temperature sensor (G62)






The engine coolant temperature sensor sits on front left of cylinder head.

- Carefully release and remove 2-pin electrical connector - arrow -.

Terminal assignment of the 2-pin harness connector at engine coolant temperature sensor






1. Wire connection from engine coolant temperature sensor to engine control module

2. Sensor ground


Engine coolant temperature sensor on radiator (G83)






The engine coolant temperature sensor on radiator sits on the bottom left of the radiator.

- Carefully release and remove 2-pin electrical connector - arrow -.

• Ignore - item 1 - and - item 2 -.

2-pin connector assignment on engine coolant temperature sensor on radiator






1. Wiring connection from engine coolant temperature sensor on radiator to engine control module

2. Sensor ground