EPS CONTROL MODULE INSPECTION


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1.  Remove the driver-side front scuff plate. (See FRONT SCUFF PLATE REMOVAL/INSTALLATION.)

2.  Remove the driver-side front side trim. (See FRONT SIDE TRIM REMOVAL/INSTALLATION.)

3.  Remove the car-navigation unit (with car-navigation system). (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

4.  Remove the switch panel. (See SWITCH PANEL REMOVAL/INSTALLATION.)

5.  Remove the decoration panel. (See DECORATION PANEL REMOVAL/INSTALLATION.)

6.  Remove the shift lever knob (MTX vehicles). (See MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [C66M-R, C66MX-R].) (See MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [D66M-R, D66MX-R]

7.  Remove the selector lever knob (ATX vehicles). (See AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION.)

8.  Remove the front console box. (See FRONT CONSOLE BOX REMOVAL/INSTALLATION.)

9.  Remove the shift panel. (See SHIFT PANEL REMOVAL/INSTALLATION.)

10.  Remove the upper panel. (See UPPER PANEL REMOVAL/INSTALLATION.)

11.  Remove the rear console. (See REAR CONSOLE REMOVAL/INSTALLATION.)

12.  Remove the side wall. (See SIDE WALL REMOVAL/INSTALLATION.)

13.  Remove the front console. (See FRONT CONSOLE REMOVAL/INSTALLATION.)

14.  Disconnect the bonnet release lever from the lower panel. (See BONNET LATCH AND RELEASE LEVER REMOVAL/INSTALLATION.)

15.  Remove the lower panel. (See LOWER PANEL REMOVAL/INSTALLATION.)

16.  Remove the driver-side front heat duct. (See FRONT HEAT DUCT REMOVAL/INSTALLATION.)

17.  Attach the tester lead to the underside of the EPS CM connector and inspect the voltage according to the terminal voltage table (reference).


Terminal Voltage Table (Reference)

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Type A

Terminal

Signal name

Connected to

Measured item

Measured terminal (measurement condition)

Voltage (V)

Inspection item(s)

1A
Ground
Ground point
Voltage
Under any condition
1 or less
•  Wiring harness (1A—ground point)
1B
Battery power supply
Battery
Voltage
Under any condition
B+
•  Wiring harness (1B—battery)
•  Fuse (EPS 60A)
2A
CAN_H
Perform DTC inspection
2B
2C
2D
CAN_L
Perform DTC inspection
2E
2F
2G
2H
Ignition power supply
IG1 relay
Voltage
Ignition ON (engine off or on)
B+
•  Wiring harness (2H—IG1 relay—battery)
•  Fuse (SRS1 7.5A)
Ignition OFF (LOCK)
1 or less

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Type B

Terminal

Signal name

Connected to

Measured item

Measured terminal (measurement condition)

Voltage (V)

Inspection item(s)

1A
Ground
Ground point
Voltage
Under any condition
1 or less
•  Wiring harness (1A—ground point)
1B
Battery power supply
Battery
Voltage
Under any condition
B+
•  Wiring harness (1B—battery)
•  Fuse (EPS 60A)
2A
Ignition power supply
IG1 relay
Voltage
Ignition ON (engine off or on)
B+
•  Wiring harness (2A—IG1 relay—battery)
•  Fuse (SRS1 7.5A)
Ignition OFF (LOCK)
1 or less
2B
CAN_H
Perform DTC inspection
2C
2D
CAN_L
Perform DTC inspection