Ca

Wire Harness Side:

Power Steering ECU Connector

nnr

inr

1 .

(I

(a) Disconnect the D31 power steering ECU connector.

Wire Harness Side:

P-CAN J/C Connector lor "nor

C125896E28

(b) Measure the resistance. HINT:

The resistance must be measured after the D42 P-CAN J/C connector is disconnected.

Result

Tester Connection

Condition

Specified Condition

Proceed to

D42-4 (EPS) -D42-15 (EPS)

Ignition switch OFF

1 Q or higher

OK

D42-4 (EPS) -D42-15 (EPS)

Ignition switch OFF

Below 1 Q

NG

REPLACE POWER STEERING ECU

REPLACE POWER STEERING ECU

REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO POWER STEERING ECU (P-CAN J/C -POWER STEERING ECU (CAN-H, CAN-L))

CHECK CAN BUS LINES FOR SHORT CIRCUIT (MAIN BODY ECU BRANCH WIRE)

Wire Harness Side:

Main Body ECU Connector

Main Body Ecu Yaris 2007

C131840E02

(a) Disconnect the D33 main body ECU connector.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment