Wiring Diagram

INSPECTION PROCEDURE

NOTICE:

• Turn the ignition switch off before measuring the resistance of the CAN main wire and CAN branch wires.

• After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not operating.

• Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If doors need to be opened in order to check connectors, open the doors and leave them open.

HINT:

Operating the ignition switch, any other switches or any triggers related ECU and sensor communication on the CAN, which would cause resistance reading variations.

CHECK DLC3

(a) Turn the ignition switch off.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance

Tester Connection

Condition

Specified Value

Result

E10-6 (CANH) -E101-14 (CANL)

Ignition switch off

108 to 132 n

A

E10-6 (CANH) -E10-14 (CANL)

Ignition switch off

132 n or higher

When the measured value is 132 Q or more and a CAN communication system diagnostic trouble code is output, there may be a fault besides disconnection of the DLC3 branch wire. For that reason, troubleshooting should be performed again from "HOW TO PROCEED WITH TROUBLESHOOTING" (See page CA-8 ) after repairing the trouble area.

REPAIR OR REPLACE DLC3 BRANCH WIRE OR CONNECTOR (CANH, CANL)

CHECK FOR OPEN IN CAN BUS MAIN WIRE (COMBINATION METER MAIN BUS LINE)

(a) Disconnect the CAN main bus wire white connector (E43) from the No. 1 CAN J/C "B" side (without earth terminal).

NOTICE:

• Before disconnecting the connector, make a note of where it is connected.

• Reconnect the connector to its original position.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance

Tester Connection

Condition

Specified Value

E43-1 (CANH) - E43-2 (CANL)

Ignition switch off

108 to 132 Q

Go to step 7

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