DESCRIPTION
The motor rotation angle sensor detects the motor rotation angle and sends this information to the power steering ECU.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1528 |
Motor rotation angle sensor malfunction |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the power steering ECU and steering column assembly have been replaced, perform
the rotation angle sensor initialization and torque sensor zero point calibration
(See page
).
PROCEDURE
|
1. |
CHECK CONNECTOR CONNECTION CONDITION |
(a) Check the installation condition of the motor rotation angle sensor connector.
OK:
Motor rotation angle sensor connector is securely connected to the power steering ECU.
| NG | |
CONNECT CONNECTOR |
|
|
2. |
READ VALUE USING TECHSTREAM (MOTOR ROTATION ANGLE SENSOR) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / EMPS / Data List.
(f) Select the item "Motor Rotation Angle" in the Data List and read the value displayed on the Techstream.
EMPS|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Motor Rotation Angle |
Motor rotation angle/ Min.: 0 deg Max.: 360 deg |
During steering operation, motor rotation angle value changes from 0 to 360° |
The engine is running and steering wheel is being turned. |
OK:
During steering operation, motor rotation angle value changes from 0 to 360°.
| OK | |
REPLACE POWER STEERING ECU |
|
|
3. |
CHECK STEERING COLUMN ASSEMBLY |
|
(a) Disconnect the connector from the motor rotation angle sensor. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
z9-6 (RZSN) - z9-3 (RZG) |
Always |
75.2 to 112.8 Ω |
|
z9-1 (RZV) - z9-3 (RZG) |
Always |
27.6 to 41.4 Ω |
|
z9-5 (RZCS) - z9-3 (RZG) |
Always |
73.2 to 110.8 Ω |
|
*1 |
Front view of wire harness connector (to Motor Rotation Angle Sensor) |
| OK | |
REPLACE POWER STEERING ECU |
| NG | |
REPLACE STEERING COLUMN ASSEMBLY |
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Type A
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2. On
Type B
1. Off
2. On
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Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is stored during the DTC check, inspect the trouble areas listed
for that code. For details of the code, refer to the "See page" below.
1. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) DIAGNOSTI ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE SEAT ADJUSTER COVER CAP LH
(a) Using a screwdriver wrapped with protective tape, disengage the 3
claws and remove the seat adjuster cover cap LH.
Text in Illustration
*1
...