2012 Scion xD Automatic TransFACTORY OEM SERVICE PROCEDURE

Power Steering System

POWER STEERING SYSTEM DTC IDENTIFICATION

DTC Code Description
C1511 Torque Sensor 1 Malfunction
C1512 Torque Sensor Circuit Malfunction
C1513 Torque Sensor Circuit Malfunction
C1514 Torque Sensor Power Source Circuit Malfunction
C1515 Torque Sensor Zero Point Adjustment is not Initialized
C1516 Torque Sensor Zero Point Adjustment Incomplete
C1517 Torque Sensor Hold Malfunction
C1524 Motor Circuit Malfunction
C1531 EPS ECU Circuit Malfunction
C1532 EPS ECU Circuit Malfunction
C1533 EPS ECU Circuit Malfunction
C1534 EPS ECU Circuit Malfunction
C1535 Steering Wheel Location Data Error
C1551 IG Power Source Circuit Malfunction
C1552 PIG Power Source Circuit
C1553 When Resetting Voltage, Vehicle is Being Driven
C1554 EPS Relay Circuit
C1555 EPS Motor Relay Circuit
C1581 Assist Map Un-Writing
U0100 Lost Communication with ECM/PCM "A"
U0129 Lost Communication with Brake System Control Module
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.