What does code P1106 mean?

Q: What does code P1106 mean?

Engine Torque Control Signal 2 Circuit Malfunction. P1106 on a Subaru indicates that the engine control module (ECM) has detected an abnormal signal on the engine torque control circuit number 2, which is typically used by the transmission control module (TCM) to request torque reduction during shifts. The ECM monitors the communication line or the signal voltage from the TCM and sets this code when the expected signal is missing, out of range, or implausible.

DTC codes / Subaru codes / P1106

P1106 · SubaruEngine Torque Control Signal 2 Circuit Malfunction

P1106 on a Subaru indicates that the engine control module (ECM) has detected an abnormal signal on the engine torque control circuit number 2, which is typically used by the transmission control module (TCM) to request torque reduction during shifts. The ECM monitors the communication line or the signal voltage from the TCM and sets this code when the expected signal is missing, out of range, or implausible.

SystemPowertrain

Code typeSubaru specific

SeverityMedium

Fix difficultyProfessional

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.