POWER STEERING SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Tech Tips

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
DTC Code Detection Item Trouble Areas Normal Return EPS Warning Light See page
C1511 Torque Sensor1

- Torque sensor (Steering column sub-assembly)

- Power steering ECU assembly

Ignition switch ON again Turns on

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C1512 Torque Sensor2

- Torque sensor (Steering column sub-assembly)

- Power steering ECU assembly

Ignition switch ON again Turns on

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C1513 Torque Sensor Deviation Excessive - Torque sensor (Steering column sub-assembly) Ignition switch ON again Turns on

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C1514 Torque Sensor Power Supply Voltage

- Torque sensor (Steering column sub-assembly)

- Power steering ECU assembly

Ignition switch ON again Turns on

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C1515 Torque Sensor Zero Point Adjustment Undone

- Torque sensor zero point calibration not performing

- Steering column sub-assembly

After calibrating torque sensor zero point Turns on

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C1516 Torque Sensor Zero Point Adjustment Incomplete

- Torque sensor zero point calibration failure

- Steering column sub-assembly

Clear DTC Turns on

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C1517 Torque Hold - Power steering ECU assembly Ignition switch ON again Turns on

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C1524 Motor Circuit Malfunction

- Power steering motor assembly

- Power steering ECU assembly

Ignition switch ON again Turns on

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C1531 ECU Malfunction - Power steering ECU assembly Ignition switch ON again Turns on

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C1532 ECU Malfunction - Power steering ECU assembly Ignition switch ON again Turns on

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C1533 ECU Malfunction - Power steering ECU assembly Ignition switch ON again Turns on

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C1534 ECU Malfunction - Power steering ECU assembly Ignition switch ON again Turns on

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C1535 ECU Malfunction - Power steering ECU assembly - Turns on

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C1551 IG Power Supply Voltage Malfunction

- ECU-IG NO. 1 fuse

- IG power source circuit

- Power steering ECU assembly

Ignition switch ON again or after normal condition Turns on

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C1552 PIG Power Supply Voltage Malfunction

- EPS fuse

- ALT fuse

- PIG power source circuit

- Power steering ECU assembly

Ignition switch ON again or after normal condition Turns on

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C1553 PIG Power Supply Overvoltage

- IG and PIG power source circuits

- Power steering ECU assembly

Ignition switch ON again or after normal condition Turns on

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C1554 Power Supply Relay Failure

- EPS fuse

- ALT fuse

- PIG power source circuit

- Power steering ECU assembly

Ignition switch ON again Turns on

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C1555 Motor Relay Welding Failure

- Power steering motor assembly

- Power steering ECU assembly

Ignition switch ON again Turns on

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C1581 Assist Map Number Un-Writing

- Power steering ECU assembly

- CAN communication system

- ECM

Assist map write Turns on

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C1582 Assist Map Number Mismatch

- CAN communication system

- ECM

- Power steering ECU assembly

Ignition switch ON again Turns on

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U0100 Lost Communication with ECM / PCM "A"

- CAN communication system

- ECM

Ignition switch to ON again and after normal condition Turns on

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U0129 Lost Communication with Brake System Control Module

- CAN communication system

- Brake actuator assembly (Skid control ECU)

Ignition switch ON again or after normal condition Turns on

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