Diesel Data: Automotive Repair

Transmission Fluid Temperature Sensor Circuit Malfunction

Fault ID
P071O

Title
Transmission Fluid Temperature Sensor Circuit Malfunction

Background
- When a malfunction of the oil temperature sensor is detected, the transaxle control module outputs a malfunction signal to the engine control module.

Range of Check, Set Conditions
- The fluid temperature sensor failure signal is input to the engine control module.

Effect
No limp-in

Probable causes
- Oil temperature sensor failed.
- Open or shorted oil temperature sensor circuit, or loose connector.
- Engine control module failed.