EPS CONTROL MODULE INSPECTION


id061300283200

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

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

3. Attach the tester lead to the underside of the control module connector and inspect the voltage and continuity according to the Terminal Voltage Table (Reference) indicated in the table.

Terminal Voltage Table (Reference)

Terminal

Signal name

Connected to

Measured item

Measured terminal (measured condition)

Voltage (V)

Inspection item (s)

1A
Ignition power supply
Ignition switch
Voltage
Ignition switch is ON
B+
• Wiring harness (1A-Ignition switch)
• Fuse (15 A)
Ignition switch is OFF
1 or less
1B
Torque sensor
(Signal 1)
Torque sensor
Voltage
Steering wheel is not turned
2.48
• Wiring harness (1B-torque sensor C)
• Torque sensor
Steering wheel is turned right
2.48-1.19
(Varying within the range)
Steering wheel is turned left
2.48-3.90
(Varying within the range)
1C
-
-
-
-
-
-
1D
Torque sensor
(Signal 2)
Torque sensor
Voltage
Steering wheel is not turned
2.57
• Wiring harness (1D-torque sensor B)
• Torque sensor
Steering wheel is turned right
2.57-4.02
(Varying within the range)
Steering wheel is turned left
2.57-1.28
(Varying within the range)
1E
Torque sensor
(Power supply)
Torque sensor
Voltage
Under any condition
4.97
• Wiring harness (1E-torque sensor A)
1F
-
-
-
-
-
-
1G
Torque sensor
(Ground)
Ground point
Voltage
Under any condition
1 or less
• Wiring harness (1G-torque sensor D)
1H
-
-
-
-
-
-
1I
-
-
-
-
-
-
1J
-
-
-
-
-
-
1K
CAN-L
-
Inspect under DTC inspection.
-
1L
CAN-H
-
Inspect under DTC inspection.
-
2A
Battery power supply
Battery
Voltage
Under any condition
B+
• Wiring harness (2A-Battery)
• Fuse (60 A)
2B
Ground
Ground point
Voltage
Under any condition
1 or less
• Wiring harness (2B-ground point)
3A
EPS motor (+)
EPS motor
Voltage
Steering wheel is not turned
0.99
• Wiring harness (3A-EPS motor A)
Steering wheel is turned right
0.4
Steering wheel is turned left
7.0
3B
EPS motor (-)
EPS motor
Voltage
Steering wheel is not turned
0.99
• Wiring harness (3B-EPS motor B)
Steering wheel is turned right
7.0
Steering wheel is turned left
0.4