P1626 GMC Code - Theft Deterrent Fuel Enable Signal Not Received
Quick Answer
The P1626 GMC code indicates that the Theft Deterrent Fuel Enable Signal is not being received by the vehicle's engine control module (ECM). Common causes include Faulty ignition switch, Malfunctioning key fob or key transponder, Wiring issues in the theft deterrent system. 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 GMC indicates Theft Deterrent Fuel Enable Signal Not Received.
- Common causes
- Common causes include Faulty ignition switch, Malfunctioning key fob or key transponder, Wiring issues in the theft deterrent system.
- 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 P1626 GMC Description
The P1626 GMC code indicates that the Theft Deterrent Fuel Enable Signal is not being received by the vehicle's engine control module (ECM). This signal is essential for the ECM to enable the fuel system and allow the vehicle to start and run. When this signal is not received, the ECM will prevent the fuel injectors from operating, effectively immobilizing the vehicle as a theft deterrent measure.
Common Causes of P1626 GMC
- Faulty ignition switch
- Malfunctioning key fob or key transponder
- Wiring issues in the theft deterrent system
- ECM software glitch
- Faulty fuel enable signal generator
Symptoms of P1626 GMC
- Engine cranks but does not start
- Engine starts but immediately stalls
- Security light on the dashboard stays illuminated
- Inability to start the vehicle using the key fob or ignition key
How to Fix P1626 GMC
- Check the ignition switch for proper operation and replace if necessary.
- Test the key fob or key transponder to ensure it is sending the correct signal and replace if needed.
- Inspect the wiring in the theft deterrent system for any damage or corrosion and repair as necessary.
- Perform a software update on the ECM to address any glitches.
- Test the fuel enable signal generator and replace if it is faulty.
Cost to Fix P1626 GMC
The cost of repairing a P1626 GMC code can vary depending on the specific cause of the issue and the labor rates in your area. In general, you can expect to pay anywhere from $100 to $500 for parts and labor. Keep in mind that diagnosis time and labor rates can vary, so it's a good idea to get a few quotes from different auto repair shops to find the best price.
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