P1107: Dual Alternator Lower Circuit Malfunction/ Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage
CriticalPowertrainAir Flow Sensors
What does P1107 mean?
P1107 is a diagnostic trouble code indicating "Dual Alternator Lower Circuit Malfunction/ Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage". The ECU is detecting a voltage reading that is below the expected range in the air flow sensors circuit. This typically points to a wiring short, a faulty sensor, or a grounding issue.
Common causes
- Damaged or corroded wiring harness
- Loose or disconnected electrical connector
- Failed air flow sensors sensor or actuator
- Blown fuse in the related circuit
- Poor ground connection
What should you do?
This is a critical issue. Stop driving as soon as it is safe to do so and have the vehicle inspected immediately. Continuing to drive could cause further damage or pose a safety risk.
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Code P1107 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.