AutoCodes – Oldsmobile – P0230 Oldsmobile

P0230 Oldsmobile Code - Fuel Pump Relay Control Circuit

Quick Answer

When you turn the ignition switch to the ON position, the Powertrain Control Module (PCM) activates the in-tank fuel pump. Common causes include Faulty Fuel Pump Relay, Fuel Pump Relay harness is open or shorted, Fuel Pump Relay circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0230 Oldsmobile indicates Fuel Pump Relay Control Circuit.
Common causes: Common causes include Faulty Fuel Pump Relay, Fuel Pump Relay harness is open or shorted, Fuel Pump Relay circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,521

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0230 Oldsmobile Description

When you turn the ignition switch to the ON position, the Powertrain Control Module (PCM) activates the in-tank fuel pump. The fuel pump remains on as long as the PCM receives reference pulses from the electronic ignition system. If there are no reference pulses, the PCM turns the fuel pump off after about 2-3 seconds. The PCM controls the fuel pump relay by applying B+ to the control circuit via an internal switch called a driver. The primary function of the driver is to supply a voltage to the fuel pump relay. The driver has a fault line which the PCM monitors. When the PCM commands the fuel pump on, the voltage of the control circuit should be high (near battery voltage). When the PCM commands the control circuit to the fuel pump OFF, the voltage potential of the circuit should be low (near 0 volts). This DTC sets when the PCM detects the fuel pump control circuit is shorted to ground.

OBDII Code P0230 Oldsmobile - Fuel Pump Relay Control Circuit - AutoCodes.com — P0230 Oldsmobile Code - Fuel Pump Relay Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0230 Oldsmobile?

Faulty Fuel Pump Relay
Fuel Pump Relay harness is open or shorted
Fuel Pump Relay circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0230 Oldsmobile?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0230 Oldsmobile code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0230 Oldsmobile code?

Need more information on how to fix the P0230 Oldsmobile code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0230 Oldsmobile code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0230 Oldsmobile Code

1. What are the common symptoms of OBDII code P0230 in an Oldsmobile related to the fuel pump relay control circuit?

One common symptom is the engine stalling or failing to start.

2. What are some possible causes of OBDII code P0230 in an Oldsmobile?

Potential causes include a faulty fuel pump relay, issues with the fuel pump circuit, or wiring problems.

3. How can I diagnose the fuel pump relay control circuit issue causing OBDII code P0230 in my Oldsmobile?

You can use a multimeter to test the relay, check the wiring for any damage, and inspect the fuel pump fuse for continuity.

4. Can a bad fuel pump cause OBDII code P0230 in an Oldsmobile?

Yes, a malfunctioning fuel pump can lead to this code due to issues with the fuel pump relay control circuit.

5. What are some repair tips for addressing OBDII code P0230 in an Oldsmobile?

Ensure the fuel pump relay is functioning correctly, inspect the wiring for any faults, and replace the fuel pump if necessary.

6. Is it safe to continue driving my Oldsmobile with OBDII code P0230 related to the fuel pump relay control circuit?

It is not recommended to drive the vehicle with this code, as it can lead to engine stalling and potential safety hazards.

7. How much does it typically cost to repair OBDII code P0230 in an Oldsmobile related to the fuel pump relay control circuit?

The cost of repairs can vary depending on the exact issue, but it may range from $100 to $500 for parts and labor.

8. Can a DIY enthusiast fix OBDII code P0230 in an Oldsmobile themselves?

If you have some experience with automotive repairs and the necessary tools, you may be able to diagnose and fix the issue yourself.

9. How long does it usually take to repair OBDII code P0230 in an Oldsmobile?

The repair time can vary depending on the exact cause of the issue, but it typically takes a few hours to complete the necessary repairs.

10. Will resetting the OBDII code P0230 in my Oldsmobile make the issue go away?

Resetting the code will clear the warning light temporarily, but it will not fix the underlying problem causing the fuel pump relay control circuit issue.