AutoCodes – Oldsmobile – P1626 Oldsmobile

P1626 Oldsmobile Code - Theft Deterrent Fuel Enable Signal Not Received

Quick Answer

The Body Control Module (BCM) produces the theft deterrent fuel enable signal when the ignition is ON and the proper key resistor pellet is sensed. Common causes include Faulty ignition switch, Ignition switch harness is open or shorted, ignition switch 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: P1626 Oldsmobile indicates Theft Deterrent Fuel Enable Signal Not Received.
Common causes: Common causes include Faulty ignition switch, Ignition switch harness is open or shorted, ignition switch 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.

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Code Popularity 3,260

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 Apr 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1626 Oldsmobile Description

The Body Control Module (BCM) produces the theft deterrent fuel enable signal when the ignition is ON and the proper key resistor pellet is sensed. The Powertrain Control Module (PCM) monitors the fuel enable signal during crank. If the proper signal is present on the theft deterrent fuel enable circuit, the PCM enables fuel delivery to allow the engine to start. If the PCM detects that the fuel enables signal is not present or incorrect while the engine is running, DTC P1626 will be set. DTC P1626 can cause a no-start condition or normal operation depending on when the loss of the fuel enable signal was detected. The engine will continue to start and run if the condition that set DTC P1626 occurred after the BCM sensed the proper key resistor pellet and signaled the PCM to continue fuel delivery. The engine will start and immediately stall if the condition that set DTC P1626 occurred before the BCM sensed the proper key resistor pellet. With this condition present, the PCM will inhibit fuel delivery and the BCM will disable the starter.

OBDII Code P1626 Oldsmobile - Theft Deterrent Fuel Enable Signal Not Received - AutoCodes.com — P1626 Oldsmobile Code - Theft Deterrent Fuel Enable Signal Not Received

What does this mean?

What are the Possible Causes of the DTC P1626 Oldsmobile?

Faulty ignition switch
Ignition switch harness is open or shorted
ignition switch circuit poor electrical connection
Incorrect ignition key

How to Fix the DTC P1626 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 P1626 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 P1626 Oldsmobile code?

Need more information on how to fix the P1626 Oldsmobile code? Get Access to Factory Service Manuals

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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 P1626 Oldsmobile Code

1. What are the common symptoms of OBDII code P1626 Oldsmobile?

- Common symptoms include the vehicle not starting, the security light illuminating on the dashboard, and the engine stalling while driving.

2. What does the OBDII code P1626 Oldsmobile indicate?

- This code indicates that the theft deterrent fuel enable signal was not received by the engine control module (ECM).

3. What are the possible causes of OBDII code P1626 Oldsmobile?

- Possible causes include a faulty ignition key, a defective ignition lock cylinder, issues with the theft deterrent system, or a malfunctioning ECM.

4. How can I diagnose the cause of OBDII code P1626 Oldsmobile?

- Diagnosis typically involves checking the ignition key, ignition lock cylinder, and the theft deterrent system for any faults or malfunctions.

5. Can I still drive my vehicle with OBDII code P1626 Oldsmobile?

- It is not recommended to drive your vehicle with this code as it may lead to unexpected stalling or starting issues.

6. How can I repair OBDII code P1626 Oldsmobile?

- Repair may involve reprogramming the ECM, replacing the ignition key or lock cylinder, or addressing issues within the theft deterrent system.

7. Should I reset the OBDII code P1626 Oldsmobile after making repairs?

- Yes, it is recommended to clear the code after making repairs to see if the issue has been resolved. If the code persists, further diagnosis may be necessary.

8. Can a DIY enthusiast fix OBDII code P1626 Oldsmobile?

- While some aspects of diagnosing and repairing this code can be done by a DIY enthusiast, it is recommended to consult a professional for accurate diagnosis and repair.

9. How much does it cost to repair OBDII code P1626 Oldsmobile?

- The cost of repairs can vary depending on the underlying cause of the code and the specific components that need to be replaced. It is advisable to obtain quotes from auto repair shops.

10. How can I prevent OBDII code P1626 Oldsmobile from occurring again?

- Regular maintenance of the ignition system, theft deterrent system, and ECM can help prevent the recurrence of this code.