P1647 Subaru Engine Speed Signal Circuit Problem

Tech description

There are seven (7) codes listed on the service manual for the P1647 Subaru code. Try reseting the code first, and if the code comes back, check fuses and the Engine Control Module (ECM) connector.

P1647 Subaru Description

P1647 Subaru – Power Command Signal Circuit Low Input

P1647 Subaru – Power Command Signal Circuit High Input

P1647 Subaru – Engine Torque Signal Circuit Low Input

P1647 Subaru – Engine Torque Signal Circuit High Input

P1647 Subaru – Mode Signal Circuit 1 Low Input

P1647 Subaru – Mode Signal Circuit 1 High Input

P1647 Subaru – Mode Signal Circuit 2 Problem