Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VIZ9
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 08/2016]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART; 2016 MY Sienna [12/2015 - 08/2016]

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

DTC Code

Detection Item

Trouble Area

Normal Return

EPS Warning Light

See page

C1511

Torque Sensor Circuit Malfunction

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1512

Torque Sensor Circuit Malfunction

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1513

Torque Sensor Circuit Malfunction

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1514

Torque Sensor Power Supply Abnormal

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1521

Motor Circuit Malfunction

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1524

Motor Circuit Malfunction

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1528

Motor Rotation Angle Sensor Malfunction

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1531

ECU Malfunction

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1532

ECU Malfunction

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1533

ECU Malfunction

- Steering column assembly

After normal condition

Does not come on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1534

ECU Malfunction

- Steering column assembly

Ignition switch ON again

Does not come on*1

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1541

Vehicle Speed Signal Malfunction

- CAN communication system

- Vehicle stability control system

- Steering column assembly

After normal condition

Comes on

2016 MY Sienna [12/2015 - 08/2016]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1541; Vehicle Speed Signal Malfunction

C1551

IG Power Supply Voltage Malfunction

- IG power source circuit

- Steering column assembly

Ignition switch ON again and after normal confirmation

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1551; IG Power Supply Voltage Malfunction

C1552

PIG Power Supply Voltage Malfunction

- PIG power source circuit

- Steering column assembly

After normal condition

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1552,C1554; PIG Power Supply Voltage Malfunction

C1554

Power Supply Relay Failure

- PIG power source circuit

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1552,C1554; PIG Power Supply Voltage Malfunction

C1555

Motor Relay Welding Failure

- Steering column assembly

Ignition switch ON again

Comes on

2016 - 2020 MY Sienna [12/2015 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1521,C1524,C1528,C1531-C1555; Torque Sensor Circuit Malfunction

C1581

Assist Map Number Un-Writing

- Assist map is not written

- CAN communication system

- SFI system

- Vehicle stability control system

- Steering column assembly

Assist map written

Comes on

2016 MY Sienna [12/2015 - 08/2016]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1581; Assist Map Number Un-Writing

C1582

Assist Map Number Mismatch

- CAN communication system

- Incorrect ECM

- Incorrect brake actuator assembly (Skid control ECU)

- Steering column assembly

After normal condition

Does not come on

2016 MY Sienna [12/2015 - 08/2016]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1582; Assist Map Number Mismatch

U0100

Lost Communication with ECM

- CAN communication system

- ECM

After normal condition

*2

2016 MY Sienna [12/2015 - 08/2016]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: U0100,U0129; Lost Communication with ECM

U0129

Lost Communication with Brake System Control Module

- CAN communication system

- Brake actuator assembly (Skid control ECU)

After normal condition

Comes on

2016 MY Sienna [12/2015 - 08/2016]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: U0100,U0129; Lost Communication with ECM

HINT:

  • *1: The offset is set to the default value and control is continued. In this case, the warning light illuminates.
  • *2: When an error occurs during steering assist, the warning light does not illuminate. For errors that occur before assist (at the time of the decision to start assist), the warning light illuminates.