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 |
Switch Failure (B2342)
DESCRIPTION
This DTC is output when the sliding roof ECU (sliding roof drive gear sub-assembly)
detects that the sliding roof switch is stuck for 30 seconds or more.
DTC Code
DTC Detection Condition
Trouble Area
...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Push-button start function data and the Diagnostic Trouble Codes (DTCs) can
be read through the Data Link Connector 3 (DLC3) of the vehicle. When the function
seems to be malfunctioning, use the Techstream to check for ...
TC and CG Terminal Circuit
DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the system to enter self-diagnostic
mode. If a malfunction is present, the MIL will blink.
HINT:
When a particular warning light remains blinking, a ground short in the wiring
of terminal TC ...