B144C Code - Inverted Run/Start Power Relay Circuit
Quick Answer
The vehicle theft deterrent subsystem provides the capability to lock or unlock the steering column electrically. Common causes include Faulty Inverted Run/Start Power Relay, Inverted Run/Start Power Relay harness is open or shorted, Inverted Run/Start Power 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
- B144C indicates Inverted Run/Start Power Relay Circuit.
- Common causes
- Common causes include Faulty Inverted Run/Start Power Relay, Inverted Run/Start Power Relay harness is open or shorted, Inverted Run/Start Power 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.
Code B144C Description
What are the Possible Causes of the DTC B144C?
- Faulty Inverted Run/Start Power Relay
- Inverted Run/Start Power Relay harness is open or shorted
- Inverted Run/Start Power Relay circuit poor electrical connection
- Faulty Steering Column Lock Module
How to Fix the DTC B144C?
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.
Code Tech Notes
B144C 06 Inverted Run/Start Power Relay Circuit Low Voltage/Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B144C 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.
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Need Help with the Code?
Get the B144C code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B144C Buick — Inverted Run/Start Power Relay Circuit
- B144C Cadillac — Inverted Run/Start Power Relay Circuit
- B144C Chevrolet — Inverted Run/Start Power Relay Circuit
- B144C GMC — Inverted Run/Start Power Relay Circuit
Frequently Asked Questions about B144C Code
1. What are the common symptoms of OBDII code B144C (Inverted Run/Start Power Relay Circuit)?
The common symptoms of OBDII code B144C include difficulty starting the vehicle, intermittent or no engine cranking, and potential issues with the ignition system.
2. What are the possible causes of OBDII code B144C?
Possible causes of OBDII code B144C include a faulty power relay, damaged wiring or connectors in the circuit, a defective ignition switch, or a problem with the engine control module (ECM).
3. How can I diagnose the Inverted Run/Start Power Relay Circuit issue associated with code B144C?
To diagnose the issue, you can use a diagnostic scanner to read the trouble code, inspect the power relay and related components, check for loose or damaged wiring, and perform continuity tests to identify any faulty components.
4. Can I still drive my vehicle with OBDII code B144C present?
It is not recommended to drive the vehicle with OBDII code B144C present, as it can lead to potential starting issues and may eventually cause the vehicle to stall unexpectedly.
5. How can I repair OBDII code B144C at home?
You can attempt to repair OBDII code B144C at home by checking and replacing the faulty power relay, repairing any damaged wiring, and ensuring all connections are secure. However, if you are unsure, it is best to seek professional assistance.
6. Will resetting the OBDII code B144C make it go away permanently?
Resetting the OBDII code B144C may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to return. It is important to diagnose and repair the root cause of the problem.
7. Can a low battery voltage trigger OBDII code B144C?
Yes, a low battery voltage can potentially trigger OBDII code B144C as it can affect the proper functioning of the power relay and other electrical components in the circuit.
8. Is OBDII code B144C specific to certain vehicle makes and models?
OBDII code B144C (Inverted Run/Start Power Relay Circuit) can occur in various vehicle makes and models that are equipped with an OBDII system. It is important to consult the specific vehicle's service manual for accurate diagnosis and repair information.
9. How much should I expect to pay for professional repair of OBDII code B144C?
The cost of professional repair for OBDII code B144C can vary depending on the labor rates in your area, the extent of the issue, and the price of any replacement parts needed. It is advisable to obtain quotes from different repair shops.
10. Can a DIY enthusiast with basic automotive knowledge fix OBDII code B144C?
A DIY enthusiast with basic automotive knowledge may be able to fix OBDII code B144C by following step-by-step guides, watching tutorials, and using appropriate tools. However, if unsure, it is best to consult a professional mechanic for assistance.
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