OBD-II code · manufacturer-specific
P1631
Theft Deterrent Fuel Enable Signal Not Received/ B+ Supply To VCRM A/C Circuit Malfunction
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Low (1/5)
- Can I keep driving?
- Usually safe to drive
What does P1631 mean?
P1631 is defined as “Theft Deterrent Fuel Enable Signal Not Received/ B+ Supply To VCRM A/C Circuit Malfunction”.
You can usually keep driving, but have it checked soon so a small fault doesn’t become a bigger one.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Volkswagen: Accelerator Pedal Position Sensor 1 Signal Too High
- Kia: Alternator T Open Or No Power Output 1.8L
- Mazda: Generator Output Voltage Signal No Output
- Kia: TCU Communication Line Malfunction
- Buick, Cadillac, Chevrolet, GM, GMC, Oldsmobile, Saturn: Theft Deterrent Start Enable Signal Not Correct
- Citroen, Diğer, Peugeot: Theft Deterrent Start Enable Signal Not Correct/ Main Relay Malfunction (Power Hold)
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This page is general information; an exact diagnosis needs measurements and a technician’s check.