Inspection Procedure

Total OBD & ECU Auto Diagnostics

Total OBD & ECU Auto Diagnostics

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CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM)

Wire Harness Side:

ECM Connector

DLC3:

1

2

3

4

5

6

7

8

g

10

11

12

13

14

15

(a) Disconnect the A21 connector of the ECM.

(b) Measure the resistance. Standard resistance

Tester Connection

Specified Condition

TC (D15-13) - TC (A21-27)

Below 1 Q

(c) Reconnect the ECM connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR (TC of DLC3 - ECM)

CHECK HARNESS AND CONNECTOR (TC of DLC3 - BODY GROUND)

DLC3:

1

2

3

4

5

6

7

8

g

10

11

12

13

14

15

(a) Measure the resistance. Standard resistance

Tester Connection

Specified Condition

TC (D15-13) - Body ground

10 kQ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR (TC CIRCUIT)

CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)

Toyota Yaris Srodek

(a) Measure the resistance. Standard resistance

Tester Connection

Specified Condition

CG (D15-4) - Body ground

Below 1 Q

REPAIR OR REPLACE HARNESS OR CONNECTOR (CG of DLC3 - BODY GROUND)

REPLACE ECM

CRUISE CONTROL MAIN SWITCH COMPONENTS

Toyota Dlc3 Electrical

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