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:
Click here
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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 > Seat: Front Power Seat Control System
Parts Location
PARTS LOCATION
ILLUSTRATION
*1
INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
- P/SEAT FUSE
-
-
ILLUSTRATION
*1
LUMBAR SUPPORT ADJUSTER ASSEMBLY LH
*2
FRONT LUMBAR POWER SEAT SWITC ...
Toyota CH-R Service Manual > Exterior Panels / Trim: Wheel Opening Moulding(for Front)
Components
COMPONENTS
ILLUSTRATION
*1
FRONT FENDER MOULDING SUB-ASSEMBLY
-
-
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
...