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Diagnostic Trouble Code Chart

HINT:

If any DTCs are displayed during the DTC check, inspect the circuit listed for those DTCs. For details of each DTC, refer to the page indicated in the DTC chart.

Power Steering System 

POWER STEERING SYSTEM REFERENCE CHART

DTC Code Detection Item Trouble Area Return-to-normal Condition P/S Warning Light
C1511  Torque Sensor Circuit Malfunction
  1. Steering column assembly (Torque sensor)
  2. Power steering ECU
 Ignition switch on (IG) again ◦
C1512  Torque Sensor Circuit Malfunction
  1. Steering column assembly (Torque sensor)
  2. Power steering ECU
 Ignition switch on (IG) again ◦
C1513  Torque Sensor Circuit Malfunction
  1. Steering column assembly (Torque sensor)
  2. Power steering ECU
 Ignition switch on (IG) again ◦
C1514  Torque Sensor Power Supply Abnormal
  1. Steering column assembly (Torque sensor)
  2. Power steering ECU
 Ignition switch on (IG) again ◦
C1515  Torque Sensor Zero Point Adjustment Undone - After calibrating torque sensor zero point ◦
C1516  Torque Sensor Zero Point Adjustment Incomplete - After calibrating torque sensor zero point normally ◦
C1517  Torque Hold Abnormal
  1. Steering column assembly (Torque sensor)
  2. Power steering ECU
 Ignition switch on (IG) again ◦
C1524  Motor Circuit Malfunction
  1. Steering column assembly (Power steering motor)
  2. Power steering ECU
 Ignition switch on (IG) again ◦
C1531  ECU Malfunction Power steering ECU Ignition switch on (IG) again ◦
C1532  ECU Malfunction Power steering ECU Ignition switch on (IG) again ◦(1)
C1533  ECU Malfunction Power steering ECU Ignition switch on (IG) again ◦
C1534  ECU Malfunction Power steering ECU Ignition switch on (IG) again ◦(1)
C1535  ECU Malfunction Power steering ECU - ◦
C1551  IG Power Supply Voltage Malfunction
  1. ECU-IG No. 1 fuse
  2. IG power source circuit
  3. Power steering ECU
 Ignition switch on (IG) again and after normal confirmation ◦
C1552  PIG Power Supply Voltage Malfunction
  1. EPS fuse
  2. PIG power source circuit
  3. Power steering ECU
 Ignition switch on (IG) again and after normal confirmation ◦
C1553  PIG Power Supply Overvoltage
  1. IG and PIG power source circuit
  2. Power steering ECU
 Ignition switch on (IG) again and after normal confirmation ◦
C1554  Power Supply Relay Failure
  1. EPS fuse
  2. PIG power source circuit
  3. Power steering ECU
 Ignition switch on (IG) again ◦
C1555  Motor Relay Welding Failure Power steering ECU Ignition switch on (IG) again ◦
C1581  Assist Map Number Un-Writing
  1. Power steering ECU
  2. SFI system
  3. CAN communication system
 - ◦
U0100  Lost Communication with ECM / PCM "A"
  1. CAN communication system
  2. ECM
 Ignition switch on (IG) again or after normal confirmation ◦
U0129  Lost Communication with Brake System Control Module
  1. CAN communication system
  2. Skid control ECU
 Ignition switch on (IG) again or after normal confirmation ◦
◦: Warning light comes on
(1) Depending on some detection conditions, there is a case that the warning light does not come on.
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