Toyota TechDoc

CAN COMMUNICATION SYSTEM > Check CAN Bus Lines for Short Circuit (w/ Stop and Start System)

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DESCRIPTION

There may a short circuit in the CAN main wire and/or CAN branch wire when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 54 Ω.

Symptom

Trouble Area

Resistance between terminals 6 (CANH) and 14 (CANL) of DLC3 below 54 Ω

Short in CAN bus wire
ECM
Combination meter assembly (Combination meter ECU)
Steering column assembly (Power steering ECU)
Brake actuator assembly (Skid control ECU)
Spiral cable sub-assembly (Steering sensor)
Yaw rate sensor
Center airbag sensor assembly
Air conditioning amplifier assembly
Certification ECU*1
Main body ECU
Power management control ECU*1
CAN No. 1 junction connector
CAN No. 2 junction connector
CAN No. 3 junction connector*1
Engine stop and start ECU

*1: w/ Entry and Start System

WIRING DIAGRAM

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.

1.CHECK FOR SHORT IN CAN BUS WIRES (DLC3 BRANCH WIRE)

Turn the ignition switch off.

Disconnect the D71 CAN No. 2 junction connector.
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Text in Illustration
*1	Front view of wire harness connector (to CAN No. 2 junction connector)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of DLC3
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D47-6 (CANH) - D47-14 (CANL)
Ignition switch off
1 MΩ or higher

Text in Illustration
*2	Front view of DLC3

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

OK

2.CONNECT CONNECTOR

Reconnect the CAN No. 2 junction connector.

NEXT

3.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C)

Turn the ignition switch off.

Disconnect the A49 CAN No. 1 junction connector.
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 1 junction connector)

Text in Illustration
*1	Front view of wire harness connector (to CAN No. 1 junction connector)

Measure the resistance according to the value in the table below.
Text in Illustration
*2
Front view of DLC3
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D47-6 (CANH) - D47-14 (CANL)
Ignition switch off
108 to 132 Ω
Result
Result
Proceed to
NG
A
OK
B

Text in Illustration
*2	Front view of DLC3

Result
Result	Proceed to
NG	A
OK	B

Go to step 13

A

4.SYSTEM CHECK

Check the vehicle specifications.
Result
Result
Proceed to
w/o Entry and Start System
A
w/ Entry and Start System
B

Result
Result	Proceed to
w/o Entry and Start System	A
w/ Entry and Start System	B

Go to step 15

A

5.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - COMBINATION METER ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-5 (CANH) - D71-16 (CANL)
Ignition switch off
108 to 132 Ω
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Text in Illustration
*1	Front view of wire harness connector (to CAN No. 2 junction connector)

Go to step 28

OK

6.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - ENGINE STOP AND START ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-11 (CANH) - D71-22 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Text in Illustration
*1	Front view of wire harness connector (to CAN No. 2 junction connector)

Go to step 29

OK

7.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - AIR CONDITIONING AMPLIFIER ASSEMBLY)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-6 (CANH) - D71-17 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 34

OK

8.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - MAIN BODY ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-2 (CANH) - D71-13 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 35

OK

9.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - STEERING SENSOR)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-3 (CANH) - D71-14 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 36

OK

10.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - CENTER AIRBAG SENOR ASSEMBLY)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-7 (CANH) - D71-18 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 37

OK

11.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - YAW RATE SENSOR)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-8 (CANH) - D71-19 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 38

OK

12.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - POWER STEERING ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-9 (CANH) - D71-20 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 39

REPLACE CAN NO. 2 JUNCTION CONNECTOR

13.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 J/C - ECM)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the A49 CAN No. 1 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
A49-6 (CANH) - A49-4 (CANL)
Ignition switch off
108 to 132 Ω
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 1 junction connector)

Go to step 26

OK

14.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 J/C - SKID CONTROL ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the A49 CAN No. 1 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
A49-7 (CANH) - A49-3 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 1 junction connector)

Go to step 27

REPLACE CAN NO. 1 JUNCTION CONNECTOR

15.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 3 J/C)

Turn the ignition switch off.

Disconnect the D83 CAN No. 3 junction connector.
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 3 junction connector)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of DLC3
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D47-6 (CANH) - D47-14 (CANL)
Ignition switch off
1 MΩ or higher
Result
Result
Proceed to
NG
A
OK
B

Go to step 24

A

16.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - CERTIFICATION ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-11 (CANH) - D71-22 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 32

OK

17.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - POWER MANAGEMENT ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-10 (CANH) - D71-21 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 33

OK

18.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - AIR CONDITIONING AMPLIFIER ASSEMBLY)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-6 (CANH) - D71-17 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 34

OK

19.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - MAIN BODY ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-2 (CANH) - D71-13 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 35

OK

20.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - STEERING SENSOR)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-3 (CANH) - D71-14 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 36

OK

21.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - CENTER AIRBAG SENOR ASSEMBLY)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-7 (CANH) - D71-18 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 37

OK

22.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - YAW RATE SENSOR)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-8 (CANH) - D71-19 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 38

OK

23.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C - POWER STEERING ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-9 (CANH) - D71-20 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 2 junction connector)

Go to step 39

REPLACE CAN NO. 2 JUNCTION CONNECTOR

24.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 3 J/C - COMBINATION METER ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D83 CAN No. 3 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D83-7 (CANH) - D83-18 (CANL)
Ignition switch off
108 to 132 Ω
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 3 junction connector)

Go to step 30

OK

25.CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 3 J/C - ENGINE STOP AND START ECU)

Measure the resistance according to the value(s) in the table below.
HINT:
The resistance must be measured after the D83 CAN No. 3 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D83-5 (CANH) - D83-16 (CANL)
Ignition switch off
200 Ω or higher
Text in Illustration
*1
Front view of wire harness connector
(to CAN No. 3 junction connector)

Go to step 31

REPLACE CAN NO. 3 JUNCTION CONNECTOR

26.CHECK FOR SHORT IN CAN BUS WIRES (ECM)

Disconnect the A18 ECM connector.
Text in Illustration
*1
Front view of wire harness connector
(to ECM)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 1 junction connector)
HINT:
The resistance must be measured after the A49 CAN No. 1 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
A49-6 (CANH) - A49-4 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE ECM (Click here)

27.CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU)

Disconnect the A16 or A17 brake actuator assembly (skid control ECU) connector.
Text in Illustration
*1
Front view of wire harness connector
(to Brake Actuator Assembly (Skid Control ECU))
*2
for LHD
*3
for RHD

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*4
Front view of wire harness connector
(to CAN No. 1 junction connector)
HINT:
The resistance must be measured after the A49 CAN No. 1 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
A49-7 (CANH) - A49-3 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE BRAKE ACTUATOR ASSEMBLY (Click here)

28.CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER ECU)

Disconnect the D1 combination meter assembly (combination meter ECU) connector.
Text in Illustration
*1
Front view of wire harness connector
(to Combination Meter Assembly (Combination Meter ECU))

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-5 (CANH) - D71-16 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE COMBINATION METER ASSEMBLY (Click here)

29.CHECK FOR SHORT IN CAN BUS WIRES (ENGINE STOP AND START ECU)

Disconnect the D78 Engine stop and start ECU connector.
Text in Illustration
*1
Front view of wire harness connector
(to Engine Stop and Start ECU)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-11 (CANH) - D71-22 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE ENGINE STOP AND START ECU (Click here)

30.CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER ECU)

Disconnect the D1 combination meter assembly (combination meter ECU) connector.
Text in Illustration
*1
Front view of wire harness connector
(to Combination Meter Assembly (Combination Meter ECU))

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 3 junction connector)
HINT:
The resistance must be measured after the D83 CAN No. 3 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D83-7 (CANH) - D83-18 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE COMBINATION METER ASSY (Click here)

31.CHECK FOR SHORT IN CAN BUS WIRES (ENGINE STOP AND START ECU)

Disconnect the D78 Engine stop and start ECU connector.
Text in Illustration
*1
Front view of wire harness connector
(to Engine Stop and Start ECU)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 3 junction connector)
HINT:
The resistance must be measured after the D83 CAN No. 3 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D83-5 (CANH) - D83-16 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE ENGINE STOP AND START ECU (Click here)

32.CHECK FOR SHORT IN CAN BUS WIRES (CERTIFICATION ECU)

Disconnect the D34 certification ECU connector.
Text in Illustration
*1
Front view of wire harness connector
(to Certification ECU)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-11 (CANH) - D71-22 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE CERTIFICATION ECU

33.CHECK FOR SHORT IN CAN BUS WIRES (POWER MANAGEMENT CONTROL ECU)

Disconnect the D38 power management control ECU connector.
Text in Illustration
*1
Front view of wire harness connector
(to Power Management Control ECU)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-10 (CANH) - D71-21 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE POWER MANAGEMENT CONTROL ECU (Click here)

34.CHECK FOR SHORT IN CAN BUS WIRES (AIR CONDITIONING AMPLIFIER ASSEMBLY)

Disconnect the D15 or D16 air conditioning amplifier assembly connector.
Text in Illustration
*1
Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)
*2
for Manual Air Conditioning System
*3
for Automatic Air Conditioning System

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*4
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-6 (CANH) - D71-17 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (Click here)

35.CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU)

Disconnect the D42 main body ECU connector.
Text in Illustration
*1
Front view of wire harness connector
(to Main Body ECU)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-2 (CANH) - D71-13 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE MAIN BODY ECU (Click here)

36.CHECK FOR SHORT IN CAN BUS WIRES (STEERING SENSOR)

Disconnect the D20 spiral cable sub-assembly (steering sensor) connector.
Text in Illustration
*1
Front view of wire harness connector
(to Spiral Cable Sub-assembly (Steering Sensor))

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-3 (CANH) - D71-14 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE SPIRAL CABLE SUB-ASSEMBLY (Click here)

37.CHECK FOR SHORT IN CAN BUS WIRES (CENTER AIRBAG SENSOR ASSEMBLY)

Disconnect the D43 center airbag sensor assembly connector.
Text in Illustration
*1
Front view of wire harness connector
(to Center Airbag Sensor Assembly)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-7 (CANH) - D71-18 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE CENTER AIRBAG SENSOR ASSEMBLY (Click here)

38.CHECK FOR SHORT IN CAN BUS WIRES (YAW RATE SENSOR)

Disconnect the D58 yaw rate sensor connector.
Text in Illustration
*1
Front view of wire harness connector
(to Yaw Rate Sensor)

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-8 (CANH) - D71-19 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE CENTER AIRBAG SENSOR ASSEMBLY (Click here)

39.CHECK FOR SHORT IN CAN BUS WIRES (POWER STEERING ECU)

Disconnect the D51 steering column assembly (power steering ECU) connector.
Text in Illustration
*1
Front view of wire harness connector
(to Steering Column Assembly (Power Steering ECU))

Measure the resistance according to the value(s) in the table below.
Text in Illustration
*2
Front view of wire harness connector
(to CAN No. 2 junction connector)
HINT:
The resistance must be measured after the D71 CAN No. 2 junction connector is disconnected.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
D71-9 (CANH) - D71-20 (CANL)
Ignition switch off
1 MΩ or higher

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L)

REPLACE STEERING COLUMN ASSEMBLY (Click here)

Tester Connection	Switch Condition	Specified Condition
D47-6 (CANH) - D47-14 (CANL)	Ignition switch off	1 MΩ or higher

*1	Front view of wire harness connector (to Brake Actuator Assembly (Skid Control ECU))
*2	for LHD
*3	for RHD

*1	Front view of wire harness connector (to Air Conditioning Amplifier Assembly)
*2	for Manual Air Conditioning System
*3	for Automatic Air Conditioning System