AutoCodes – Pontiac – P1626 Pontiac

P1626 Pontiac 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 Pontiac 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 2,383

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 Aug 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1626 Pontiac 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 Pontiac - Theft Deterrent Fuel Enable Signal Not Received - AutoCodes.com — P1626 Pontiac Code - Theft Deterrent Fuel Enable Signal Not Received

What does this mean?

What are the Possible Causes of the DTC P1626 Pontiac?

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 Pontiac?

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 Pontiac 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 Pontiac code?

Need more information on how to fix the P1626 Pontiac 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 Pontiac Code

1. What are the common symptoms of OBDII code P1626 in a Pontiac related to the Theft Deterrent Fuel Enable Signal Not Received?

- Common symptoms include the vehicle not starting, the security light staying on or flashing, and the engine stalling shortly after starting.

2. What is the main cause of OBDII code P1626 in a Pontiac?

- The main cause of code P1626 is typically a communication issue between the vehicle's theft deterrent system and the engine control module (ECM).

3. How can I diagnose the issue causing OBDII code P1626 in my Pontiac?

- To diagnose the issue, you may need to check the wiring and connections between the theft deterrent system and the ECM, as well as scan for any other related trouble codes.

4. Can a weak car battery cause OBDII code P1626 to trigger in a Pontiac?

- Yes, a weak car battery can sometimes trigger code P1626 due to insufficient power affecting the communication between the theft deterrent system and the ECM.

5. What are some repair tips for fixing OBDII code P1626 in a Pontiac?

- Repair tips may include checking and repairing any damaged wiring, ensuring all connections are secure, resetting the theft deterrent system, and possibly reprogramming the ECM.

6. Can a DIY enthusiast fix OBDII code P1626 in a Pontiac, or is professional assistance required?

- Depending on the cause of the code, a DIY enthusiast with automotive knowledge may be able to fix P1626 by following repair guides or seeking assistance from online forums.

7. Is it safe to continue driving my Pontiac with OBDII code P1626 present?

- It is not recommended to continue driving the vehicle with code P1626 present, as it may lead to starting issues or engine stalling, potentially leaving you stranded.

8. How long does it typically take to repair OBDII code P1626 in a Pontiac?

- The repair time for code P1626 can vary depending on the cause and complexity of the issue. It may take anywhere from a few hours to a day to diagnose and fix the problem.

9. Are there any preventive measures to avoid OBDII code P1626 from appearing in a Pontiac?

- Keeping the vehicle's electrical system well-maintained, avoiding jump-starts, and ensuring the battery is in good condition can help prevent code P1626 from triggering.

10. Will resetting the ECM clear OBDII code P1626 in a Pontiac?

- Resetting the ECM may temporarily clear the code, but if the underlying issue causing P1626 is not addressed, the code is likely to reappear. It's important to diagnose and fix the root cause.