What does code P1115 mean?

Q: What does code P1115 mean?

Engine Torque Control Cut Signal Circuit High Input. P1115 on a Subaru indicates that the engine control module (ECM) has detected an abnormally high voltage on the engine torque control cut signal circuit, which is used to momentarily reduce engine torque during transmission shifts for smoother operation. The ECM expects a specific voltage range on this circuit and sets the code when the signal exceeds the upper threshold, often due to a wiring fault or a failed component.

DTC codes / Subaru codes / P1115

P1115 · SubaruEngine Torque Control Cut Signal Circuit High Input

P1115 on a Subaru indicates that the engine control module (ECM) has detected an abnormally high voltage on the engine torque control cut signal circuit, which is used to momentarily reduce engine torque during transmission shifts for smoother operation. The ECM expects a specific voltage range on this circuit and sets the code when the signal exceeds the upper threshold, often due to a wiring fault or a failed component.

SystemPowertrain

Code typeSubaru specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

Guidance is general and written for Subaru vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.