DESCRIPTION
The torque sensor converts the rotational torque received from the steering wheel into electric signals and sends them to the power steering ECU assembly.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Warning Indicate |
Return-to-normal Condition |
Note |
---|---|---|---|---|---|---|
C1511 |
Torque Sensor1 |
Torque sensor malfunction |
|
EPS warning light: Comes on |
The ECU judges the system has returned to normal or the ignition switch ON again |
- |
C1512 |
Torque Sensor2 |
Torque sensor malfunction |
|
EPS warning light: Comes on |
The ECU judges the system has returned to normal or the ignition switch ON again |
- |
C1513 |
Torque Sensor Deviation Excessive |
Torque sensor malfunction |
|
EPS warning light: Comes on |
The ECU judges the system has returned to normal or the ignition switch ON again |
- |
C1514 |
Torque Sensor Power Supply Voltage |
Torque sensor malfunction |
|
EPS warning light: Comes on |
Ignition switch ON again |
- |
C1517 |
Torque Hold |
Torque sensor malfunction |
|
EPS warning light: Comes on |
Ignition switch ON again |
- |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. |
CHECK CONNECTOR CONNECTION CONDITION |
(a) Check the connection condition of the torque sensor connector.
OK:
Torque sensor connector is securely connected to the power steering ECU assembly.
NG |
CONNECT CONNECTOR |
|
2. |
CHECK POWER STEERING ECU ASSEMBLY (TRQV VOLTAGE) |
(a) Turn the ignition switch to ON. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
z3-7 (TRQV1) - z3-8 (TRQG1) |
Ignition switch ON |
4.5 to 5.5 V |
z3-3 (TRQV2) - z3-2 (TRQG2) |
Ignition switch ON |
4.5 to 5.5 V |
NG |
REPLACE POWER STEERING ECU ASSEMBLY |
|
3. |
CHECK POWER STEERING ECU ASSEMBLY (TRQ1, TRQ2 VOLTAGE) |
(a) Turn the engine running. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
z3-9 (TRQ1) - z3-8 (TRQG1) |
Engine running and steering wheel not being turned (without load) |
2.3 to 2.7 V |
Engine running and steering wheel being turned to the right with vehicle stopped |
2.5 to 3.8 V |
|
Engine running and steering wheel being turned to the left with vehicle stopped |
1.2 to 2.5 V |
|
z3-1 (TRQ2) - z3-2 (TRQG2) |
Engine running and steering wheel not being turned (without load) |
2.3 to 2.7 V |
Engine running and steering wheel being turned to the right with vehicle stopped |
1.2 to 2.5 V |
|
Engine running and steering wheel being turned to the left with vehicle stopped |
2.5 to 3.8 V |
(c) Under each condition, measure the voltage at terminals TRQ1 and TRQ2, and calculate the sum.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
Sum of voltage between z3-9 (TRQ1) and z3-8 (TRQG1) and voltage between z3-1 (TRQ2) and z3-2 (TRQG2) |
Engine running and steering wheel not being turned (without load) |
Between 4.75 V and 5.25 V |
Engine running and steering wheel being turned to the right with vehicle stopped |
||
Engine running and steering wheel being turned to the left with vehicle stopped |
OK |
REPLACE POWER STEERING ECU ASSEMBLY |
NG |
REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY |
Toyota CH-R Service Manual > Navigation System: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
Depending on the parts that are replaced during vehicle inspection or
maintenance, performing initialization, registration or calibration may
be needed. Refer to Precaution for Navigation System.
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Stop the engine. Shift the shift lever to P, and set the parking brake.
Remove the mud, snow or sand from around the front wheels.
Place wood, stones or some other material under the fro ...