Mazda CX-5 Service & Repair Manual: Electric Power Steering (Eps) Motor
Purpose, Function
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The EPS motor is driven by the control current from the EPS CM (control module) and generates assist torque to manual steering mechanism.
Construction
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The EPS motor is installed to the steering column with an integrated EPS CM.
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The EPS motor is a brushless motor which consists of a three-phase star-connected stator, a permanent magnet rotor, and resolver sensor.
Operation
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Current flows from the EPS CM to the stator to rotate the motor axis which is integrated with the rotor.
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A resolver sensor for detecting rotation angle is built into the EPS motor and outputs a motor rotation angle signal to the EPS CM.
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The EPS CM switches the current flowing to each stator based on the rotation angle signal from the resolver sensor.
Fail-safe
|
DTC No. |
Fail-safe function |
|
C200D:1C |
|
|
C200D:64 |
|
|
U2011:19 |
|
|
U2011:1C |
|
|
U2011:62 |
|
|
U2011:72 |
|
|
U2011:92 |
|
Electric Power Steering (Eps) Control Module
Purpose/ Function
The EPS control module (CM) calculates the optimum assist current based on
the steering torque signal from the torque sensor installed to the steering
column and the veh ...
Electric Power Steering System
Outline
A column assist type EPS has been adopted for all models.
EPS provides smooth handling from low to high speeds as a result of the excellent
steering feel provided by the elec ...
Other materials:
Manifold Absolute Pressure (Map) Sensor/Intake Air Temperature (Iat) Sensor
No.2 Removal/Installation
NOTE:
Because the IAT sensor No.2 is integrated in the MAP sensor, replacing the
IAT sensor No.2 includes replacement of the MAP sensor/IAT sensor No.2.
1. Disconnect the negative battery cable..
2. Disconnect the MAP sensor/IAT sensor No.2 connector.
3. Remove the MAP sensor/IA ...
Antenna Feeder No.1 Inspection
With audio system
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. A-pillar trim (RH).
b. Decoration panel.
c. Audio unit.
3. Disconnect antenna feeder No.2.
4. Verify that the continuity between antenna feeder No.1 terminals is as indicated
in the tabl ...
Active Command Modes Inspection [Rear Body Control Module (Rbcm)]
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization
screen of the M-MDS.
a. Select “DataLogger”.
b. Select “Modules”.
c. Select “R_BCM”.
3. Select the simulation items from the PID table.
4. Perform the a ...
