B1389 - Oil Temperature Sensor Circuit Failure

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Oil Temperature Sensor
  • Oil Temperature Sensor harness is open or shorted
  • Oil Temperature Sensor circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B1389 Description

The Powertrain Control Module (PCM) monitors the Oil Temperature Sensor. The PCM sets the OBDII code when the Oil Temperature Sensor is not to factory specifications.
OBDII Code B1389 - Oil Temperature Sensor Circuit Failure - AutoCodes.com

B1389 Information for specific makes

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B1389 Comments

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