Engine-Codes - Generic - B1389

B1389 Code - Oil Temperature Sensor Circuit Failure

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

|B1389 code 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)

|How is the B1389 code repair?

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 B1389 code

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.

|What are B1389 code possible symptoms?

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

|What is B1389 code meaning?

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.

|Need more information with the B1389 code?

Need more information on how to fix the B1389 code?
Get Access to Factory Service Manuals

|B1389 code information for specific makes

|Need help with a B1389 code?

Get the B1389 code diagnosed by a professional: Find a repair shop in your area