OBD-II code · manufacturer-specific
P1231
Control Sleeve Sensor Malfunction
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P1231 mean?
P1231 is defined as “Control Sleeve Sensor Malfunction”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Volkswagen: Cylinder 7 Injector Circuit Short To Ground
- Citroen, Diğer, Peugeot: Fuel Pump Secondary Circuit Low, High Speed
- Ford, Lincoln, Mercury: High Speed Fuel Pump Relay Activated
- Buick, Cadillac, Chevrolet, Chrysler, GM, GMC, Oldsmobile, Saturn: Injector Circuit Cylinder 4 Intermittent
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This page is general information; an exact diagnosis needs measurements and a technician’s check.