P1107 code meaning, causes and symptoms

P1107 means dual alternator lower circuit malfunction / manifold absolute pressure (map) sensor circuit intermittent low voltage.

P1107 code meaning is one of the most common OBD-II searches when a warning light appears on the dashboard.

Drivers searching for P1107 usually want to know what the code means, whether the car is safe to drive and what part may need testing first.

Because P1107 can appear on multiple makes and models, it is important to combine the code meaning with live data, symptoms and any other stored faults.

A proper diagnosis for P1107 should normally include a scan tool check, freeze-frame review and inspection of the components related to dual alternator lower circuit malfunction / manifold absolute pressure (map) sensor circuit intermittent low voltage.

Severity: Low to Medium

Driving advice: Whether you can keep driving depends on how the vehicle is behaving. If there is rough running, loss of power, overheating or stalling, diagnose it as soon as possible.

FAQs

What does P1107 mean?

P1107 means dual alternator lower circuit malfunction / manifold absolute pressure (map) sensor circuit intermittent low voltage.

What can cause P1107?

Causes can include failed components, wiring faults, leaks, pressure issues, bad readings or another upstream fault affecting the same system.

Is P1107 serious?

Severity depends on how the vehicle is behaving and what system is affected. Some codes are minor, while others can affect engine performance, emissions or drivability.