Engine-Codes - Generic - B1389

B1389 Code - Oil Temperature Sensor Circuit Failure

- Code Popularity: 7,133 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

What are the Possible Causes of the Code B1389?

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

How to Fix the B1389 Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the Cost to Diagnose the Code B1389?

Labor: 1.0

The cost to diagnose the B1389 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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What are Code B1389 Possible Symptoms?

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

What Does the B1389 Code Mean?

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.

B1389 Code - Oil Temperature Sensor Circuit Failure

Need more Information on the B1389 Code?

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Code B1389 Information for Specific Makes

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