P1626 Cadillac 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 Cadillac 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.
Code P1626 Cadillac Description
What are the Possible Causes of the DTC P1626 Cadillac?
- 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 Cadillac?
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 Cadillac 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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Frequently Asked Questions about P1626 Cadillac Code
1. What does the OBDII code P1626 mean on a Cadillac?
P1626 indicates that the Theft Deterrent Fuel Enable Signal was not received by the Powertrain Control Module (PCM), often due to an issue with the vehicle's anti-theft system.
2. What are common symptoms of code P1626 on a Cadillac?
Symptoms may include difficulty starting the engine, the engine cranking but not starting, or security warning lights illuminated on the dashboard.
3. What causes the P1626 code on a Cadillac?
Common causes include a malfunction in the Passlock or PassKey security system, wiring issues, a faulty Body Control Module (BCM), or communication errors between modules.
4. Can a bad ignition switch cause the P1626 code?
Yes, a faulty ignition switch can disrupt the theft deterrent system, leading to the P1626 code.
5. How do I fix the P1626 code on my Cadillac?
Repairs might include inspecting and repairing damaged wiring, replacing a faulty BCM or ignition switch, or reprogramming the theft deterrent system.
6. Can I bypass the theft deterrent system to clear code P1626?
Bypassing the system is not recommended, as it compromises vehicle security and may lead to further issues with the PCM or other components.
7. Is the P1626 code likely to prevent the engine from starting?
Yes, this code often results in the engine cranking but failing to start due to the PCM not receiving the fuel enable signal.
8. How much does it cost to fix code P1626 on a Cadillac?
Repair costs can vary widely but may range from $150 to $500 depending on the specific component that needs attention, such as wiring repair or module replacement.
9. Can a weak battery cause the P1626 code on a Cadillac?
A weak or failing battery can sometimes cause communication errors between modules, potentially triggering the P1626 code.
10. Do I need to reprogram the PCM if I get a P1626 code?
Reprogramming may be necessary if the issue involves the theft deterrent system or module replacement, but it depends on the specific diagnosis.
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