Imming

TOLH

(a) Turn the ignition switch OFF.

(b) Disconnect the D42 P-CAN J/C connector.

(c) Measure the resistance. Standard resistance

Tester Connection

Condition

Specified Condition

D42-11 (TOLH) - D42-22 (TOLH)

Ignition switch OFF

Go to step 8

CONNECT CONNECTOR

l^nextj

(a) Reconnect the P-CAN J/C connector.

CHECK CAN MAIN WIRE FOR DISCONNECTION (ECM)

Wire Harness Side:

A20 ECM Connector

(a) Turn the ignition switch OFF.

(b) Disconnect the A21 ECM connector.

(c) Measure the resistance. Standard resistance

S

Front View

-CANH

CANL

Tester Connection

Condition

Specified Condition

A21-41 (CANH) - A21-49 (CANL)

Ignition switch OFF

108 to 132 Q

REPLACE ECM

REPLACE ECM

Front View

CONNECT CONNECTOR

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(a) Reconnect the ECM connector.

CHECK CAN MAIN WIRE FOR DISCONNECTION (D-CAN J/C - ECM)

Wire Harness Side:

D-CAN J/C Connector isr "nor

(a) Turn the ignition switch OFF.

(b) Disconnect the D41 D-CAN J/C connector.

(c) Measure the resistance. Standard resistance

Tester Connection

Condition

Specified Condition

D41-4 (EFI) - D41-15 (EFI)

Ignition switch OFF

108 to 132 Q

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (D-CAN J/C - ECM (CAN-H, CAN-L))

CHECK CAN MAIN WIRE FOR DISCONNECTION (D-CAN J/C - P-CAN J/C)

Wire Harness Side:

D-CAN J/C Connector mr "nori

TORH

TORH

(a) Turn the ignition switch OFF.

(b) Disconnect the D41 D-CAN J/C connector.

(c) Measure the resistance. Standard resistance

Tester Connection

Condition

Specified Condition

D42-11 (TORH) - D42-22 (TORH)

Ignition switch OFF

108 to 132 Q

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (D-CAN J/C - P-CAN J/C (CAN-H, CAN-L))

REPLACE D-CAN J/C (JUNCTION CONNECTOR)

8

CONNECT CONNECTOR

(a) Reconnect the P-CAN J/C connector.

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9

CHECK CAN MAIN WIRE FOR DISCONNECTION (POWER STEERING ECU)

Wire Harness Side:

Wire Harness Side:

Power Steering ECU Connector inn firm o

CANH 'CANL

C125897E01

(a) Turn the ignition switch OFF.

(b) Disconnect the D31 power steering ECU connector.

(c) Measure the resistance. Standard resistance

REPLACE POWER STEERING ECU

Tester Connection

Condition

Specified Condition

D31-1 (CANH) - D31-7 (CANL)

Ignition switch OFF

108 to 132 Q

REPLACE POWER STEERING ECU

CONNECT CONNECTOR

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(a) Reconnect the power steering ECU connector.

CHECK CAN MAIN WIRE FOR DISCONNECTION (P-CAN J/C - POWER STEERING ECU)

Ignition Switch Toyota Yaris Wiring

(a) Turn the ignition switch OFF.

(b) Disconnect the D42 P-CAN J/C connector.

(c) Measure the resistance. Standard resistance

Tester Connection

Condition

Specified Condition

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

Ignition switch OFF

108 to 132 Q

NG REPAIR OR REPLACE CAN MAIN WIRE OR

REPLACE P-CAN J/C (JUNCTION CONNECTOR)

Short in CAN Bus Lines

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