Inspection procedure

NOTICE:

• Turn the ignition switch OFF before measuring the resistances of the CAN main wire and the CAN branch wire.

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

• 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 switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

CHECK CAN BUS LINE FOR SHORT TO GND (DLC3 BRANCH WIRE)

Wire Harness Side:

D-CAN J/C Connector lor' "non

DLC3:

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

(a) Turn the ignition switch OFF.

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

(c) Measure the resistance. Result

Tester Connection

Condition

Specified Condition

Proceed to

D15-6 (CANH) -D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D15-14 (CANL) -D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D15-6 (CANH) -D15-4 (CG)

Ignition switch OFF

Below 1 Q

NG

D15-14 (CANL) -D15-4 (CG)

Ignition switch OFF

Below 1 Q

NG

REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 (CAN-H, CAN-L)

CONNECT CONNECTOR

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

l^nextj

CHECK CAN BUS LINE FOR SHORT TO GND (P-CAN J/C SIDE)

Wire Harness Side:

P-CAN J/C Connector mr "non

DLC3:

'CANH

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

(a) Turn the ignition switch OFF.

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

(c) Measure the resistance. Result

Tester Connection

Condition

Specified Condition

Proceed to

D15-6 (CANH) -D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D15-14 (CANL) -D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D15-6 (CANH) -D15-4 (CG)

Ignition switch OFF

Below 1 Q

NG

D15-14 (CANL) -D15-4 (CG)

Ignition switch OFF

Below 1 Q

Go to step 13

CONNECT CONNECTOR

l^nextj

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

CHECK CAN BUS LINE FOR SHORT TO GND (D-CAN J/C - ECM)

Wire Harness Side:

D-CAN J/C Connector

IsT "id"

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

(b) Measure the resistance. Result

Tester Connection

Condition

Specified Condition

Proceed to

D41-4 (EFI) - D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D41-15 (EFI) -D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D41-4 (EFI) - D15-4 (CG)

Ignition switch OFF

Below 1 Q

NG

D41-15 (EFI) -D15-4 (CG)

Ignition switch OFF

Below 1 Q

CHECK CAN BUS LINE FOR SHORT TO GND (D-CAN J/C - BRAKE ACTUATOR (SKID CONTROL ECU))

Wire Harness Side:

D-CAN J/C Connector nor" "non

-ABS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

For vehicles without ABS, go to step 7.

(a) Measure the resistance. HINT:

The resistance must be measured after the D41 D-CAN

J/C connector is disconnected.

Result

Tester Connection

Condition

Specified Condition

Proceed to

D41-1 (ABS) -D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D41-12 (ABS) -D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D41-1 (ABS) -D15-4 (CG)

Ignition switch OFF

Below 1 Q

NG

D41-12 (ABS) -D15-4 (CG)

Ignition switch OFF

Below 1 Q

CHECK CAN BUS LINE FOR SHORT TO GND (D-CAN J/C - AIR CONDITIONING AMPLIFIER)

Wire Harness Side:

D-CAN J/C Connector

1or" "nor

1

2

3

4

5

6

7

8

g

10

11

12

13

14

15

For vehicles without air conditioning or PTC heater, go to step 8.

(a) Measure the resistance. HINT:

The resistance must be measured after the D41 D-CAN

J/C connector is disconnected.

Result

Tester Connection

Condition

Specified Condition

Proceed to

D41-6 (A/C) - D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D41-17 (A/C) -D15-4 (CG)

Ignition switch OFF

1 Q or higher

OK

D41-6 (A/C) - D15-4 (CG)

Ignition switch OFF

Below 1 Q

NG

D41-17 (A/C) -D15-4 (CG)

Ignition switch OFF

Below 1 Q

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