| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000ZY3J |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - ] |
| Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART; 2017 - 2020 MY Sienna [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 |
|
|
C1512 |
Torque Sensor Circuit Malfunction |
- Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
C1513 |
Torque Sensor Circuit Malfunction |
- Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
C1514 |
Torque Sensor Power Supply Abnormal |
- Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
C1521 |
Motor Circuit Malfunction |
- Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
C1524 |
Motor Circuit Malfunction |
- Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
C1528 |
Motor Rotation Angle Sensor Malfunction |
- Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
C1531 |
ECU Malfunction |
- Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
C1532 |
ECU Malfunction |
- Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
C1533 |
ECU Malfunction |
- Steering column assembly |
After normal condition |
Does not come on |
|
|
C1534 |
ECU Malfunction |
- Steering column assembly |
Ignition switch ON again |
Does not come on*1 |
|
|
C1541 |
Vehicle Speed Signal Malfunction |
- CAN communication system - Vehicle stability control system - Steering column assembly |
After normal condition |
Comes on |
|
|
C1551 |
IG Power Supply Voltage Malfunction |
- IG power source circuit - Steering column assembly |
Ignition switch ON again and after normal confirmation |
Comes on |
|
|
C1552 |
PIG Power Supply Voltage Malfunction |
- PIG power source circuit - Steering column assembly |
After normal condition |
Comes on |
|
|
C1554 |
Power Supply Relay Failure |
- PIG power source circuit - Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
C1555 |
Motor Relay Welding Failure |
- Steering column assembly |
Ignition switch ON again |
Comes on |
|
|
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 |
|
|
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 |
|
|
U0100 |
Lost Communication with ECM |
- CAN communication system - ECM |
After normal condition |
*2 |
|
|
U0129 |
Lost Communication with Brake System Control Module |
- CAN communication system - Brake actuator assembly (Skid control ECU) |
After normal condition |
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](/t3Portal/stylegraphics/info.gif)
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.
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