EPS CONTROL MODULE INSPECTION


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1.  Attach the tester lead to the underside of the EPS control module connector and inspect the voltage according to the terminal voltage table (reference).

•  If not as specified, replace the steering column component. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [(E)].)


Terminal Voltage Table (Reference)

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—: Not applicable

Terminal

Signal name

Connected to

Measured item

Measured terminal (measurement condition)

Voltage (V)

Inspection item(s)

1A
Battery power supply
Battery
Voltage
Under any condition
B+
•  Wiring harness (1A—battery)
•  Fuse (F19 60A)
1B
Ground
Ground point
Voltage
Under any condition
Approx. 0
•  Ground point
•  Wiring harness (1B—ground point)
2A
CAN_L
Perform DTC inspection
2B
2C
CAN_H
Perform DTC inspection
2D
2E
2F
Ignition power supply
IG1 relay No.2
Voltage
Ignition ON (engine off or on)
B+
•  Wiring harness (2F—IG1 relay No.2—battery)
•  Fuse (F48 7.5A)
Ignition off
1 or less