DESCRIPTION
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Warning Indicate |
Return-to-normal Condition |
Note |
---|---|---|---|---|---|---|
C1521 |
Short in Motor Circuit |
Motor overcurrent |
Power steering ECU assembly |
EPS warning light: Comes on |
Ignition switch ON again |
- |
C1522 |
Power Supply Sensor |
Motor current sensor malfunction |
Power steering ECU assembly |
EPS warning light: Comes on |
Ignition switch ON again |
- |
C1523 |
Current Deviation Excessive |
Excessively large current deviation |
Power steering ECU assembly |
EPS warning light: Comes on |
Ignition switch ON again |
- |
C1528 |
Motor Rotation Angle Sensor |
Motor rotation angle sensor malfunction |
Power steering ECU assembly |
EPS warning light: Comes on |
Ignition switch ON again |
- |
C1531 |
ECU Malfunction |
ECU internal malfunction (CPU malfunction) |
Power steering ECU assembly |
EPS warning light: Comes on |
The ECU judges the system has returned to normal or the ignition switch is turned ON again |
- |
C1532 |
ECU Malfunction |
ECU internal malfunction (Peripheral circuit malfunction) |
Power steering ECU assembly |
EPS warning light: Comes on |
Ignition switch ON again |
- |
C1533 |
Temperature Sensor Circuit is Low or High |
ECU internal malfunction (Substrate temperature sensor malfunction) |
Power steering ECU assembly |
EPS warning light: Comes on |
Ignition switch ON again |
- |
C1534 |
EEPROM |
ECU internal malfunction (EEPROM error) |
Power steering ECU assembly |
EPS warning light: Comes on |
Ignition switch ON again |
- |
C1555 |
Motor Relay Welding Failure |
Motor relay circuit malfunction |
Power steering ECU assembly |
EPS Warning Light: Comes on |
Ignition switch ON again |
- |
CAUTION / NOTICE / HINT
NOTICE:
If the power steering ECU assembly has been replaced, perform assist map writing and torque sensor zero point calibration.
Click here
PROCEDURE
1. |
CHECK FOR DTC |
(a) Clear the DTCs.
Click here
Chassis > EMPS > Clear DTCs(b) Check for DTCs.
Click here
Chassis > EMPS > Trouble Codes
Result |
Proceed to |
---|---|
DTCs other than C1521, C1522, C1523, C1528, C1531, C1532, C1533, C1534 or C1555 are not output. |
A |
DTCs other than C1521, C1522, C1523, C1528, C1531, C1532, C1533, C1534 or C1555 are output. |
B |
A |
REPLACE POWER STEERING ECU ASSEMBLY |
B |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
Toyota CH-R Service Manual > Meter / Gauge System: Meter Illumination does not Dim at Night
DESCRIPTION
In this circuit, the combination meter assembly receives auto dimmer signals
from the main body ECU (multiplex network body ECU) via CAN communication. When
the combination meter assembly receives an auto dimmer signal, it dims the meter
illumination (warning and indicator lights) ...
Toyota CH-R Service Manual > Theft Deterrent System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use this procedure to troubleshoot the theft deterrent system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
...