Engine-Codes - Oldsmobile - C0300 OLDSMOBILE

C0300 OLDSMOBILE Code - Rear Propshaft Speed Sensor

- Code Popularity: 1,962 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the C0300 OLDSMOBILE Code?

  • Faulty Rear Propshaft Speed Sensor
  • Rear Propshaft Speed Sensor harness is open or shorted
  • Rear Propshaft Speed Sensor circuit poor electrical connection

|How to Fix the C0300 OLDSMOBILE 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.

|C0300 OLDSMOBILE code tech notes

There is factory service bulletin for the C0300 code. The factory recommends reprogramming the Transfer Case Control Module (TCCOM) to fix the problem.

|What is the cost to diagnose the C0300 OLDSMOBILE code?

Labor: 1.0

The cost to diagnose the C0300 OLDSMOBILE 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 C0300 OLDSMOBILE code possible symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the C0300 OLDSMOBILE Code Mean?

The rear propshaft speed sensor is a Permanent Magnet (PM) generator. The PM generator produces a pulsing AC voltage. The AC voltage level and number of pulses increases as speed increases. The module converts the pulsating AC voltage to a propshaft RPM which is used for calculations. The propshaft RPM can be displayed with a scan tool.
This DTC detects an open, short to ground, short to voltage or faulty sensor.

Rear Propshaft Speed Sensor

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