Sensors (page 5 of 5)

AUTOMATIC GEARBOX - JATCO

44-26

DESCRIPTION AND OPERATION

The fluid temperature sensor can fail in the following ways:

l

Sensor open circuit

l

Short circuit to 12 or 5 volts

l

Short circuit to earth.

The EAT ECU will detect temperature sensor failure when the vehicle speed exceeds 12.5 mph (20 km/h) and the 
temperature sensor provides a reading of less than -30

°

C (-22

°

F). In the event of a fluid temperature sensor signal 

failure any of the following symptoms may be observed:

l

Upshift to 5th gear inoperative

l

Torque reduction request from the EAT ECU to the ECM inoperative.