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DTC P0600 SERIAL COMMUNICATION LINK

DTC P0600 SERIAL COMMUNICATION LINK

DTC DETECTING CONDITION:


• Immediately at fault recognition

• GENERAL DESCRIPTION


Important

After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .


WIRING DIAGRAM:


CHECK HARNESS BETWEEN ECM AND TCM.

Turn the ignition switch to ON.

Disconnect the connector from ECM.

Disconnect the connector from TCM.

Measure the resistance between ECM and TCM.

Connector & terminal

(B137) No. 18 — (B55) N0. 3:

(B137) No. 26 — (B55) N0. 12:

Is the measured value less than 1 Ω?

Yes


No

Repair the harness or connector.


CHECK HARNESS BETWEEN ECM AND TCM.

Measure the resistance between ECM connector and chassis ground.

Connector & terminal

(B137) No. 18 — Chassis ground:

(B137) No. 26 — Chassis ground:

Is the measured value more than 1 MΩ?

Yes


No

Repair the harness or connector.


CHECK HARNESS BETWEEN ECM AND TCM.

Check the resistance between ECM connectors.

Connector & terminal

(B137) No. 18 — (B137) N0. 26:

Is the measured value more than 1 MΩ?

Yes


No

Repair the harness or connector.


CHECK STATUS OF AT SYSTEM.

Perform AT diagnosis using Vehicle Diagnostic Interface.

Check if DTC 86 is displayed.

Is DTC 86 displayed?

Yes

Check AT system.


No

Replace the ECM.