garajizOBD-II code · manufacturer-specific
P1538
AAI Circuit Malfunction
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P1538 mean?
P1538 is defined as “AAI Circuit 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.
- Buick, Cadillac, Chevrolet, Chrysler, GM, GMC, Oldsmobile, Saturn: A/C request Circuit High Voltage
- Volkswagen: Engine Shutoff Solenoid Open Short To Ground
- Citroen, Diğer, Peugeot: Intake Manifold Runner Control (Bank 2) Stuck Open
- Ford, Lincoln, Mercury: Intake Manifold Runner Control Stuck Open
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This page is general information; an exact diagnosis needs measurements and a technician’s check.