CAN COMMUNICATION SYSTEM TERMINALS OF ECU
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work (Click here).
Turn the ignition switch off before measuring the resistances between CAN main bus lines and between CAN branch wires.
Turn the ignition switch off before inspecting CAN bus lines for a ground short.
Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
This section describes the standard values for all CAN related components.
Operating the ignition switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.
Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.
JUNCTION CONNECTOR
NO. 1 CAN JUNCTION CONNECTOR
Table 1. Text in Illustration *a
Rear view of wire harness connector
(to No. 1 CAN Junction Connector)
*b
for Main Body ECU (Instrument Panel Junction Block Assembly)
*c
for Brake Actuator Assembly (Skid Control ECU)
*d
for No. 2 CAN Junction Connector
*e
for ECM
-
-
No. 1 CAN Junction Connector
Wiring Color
Connect to
A50-7 (CANH)
P
Main body ECU (instrument panel junction block assembly)
A50-18 (CANL)
W
A50-8 (CANH)
R
Brake actuator assembly (skid control ECU)
A50-19 (CANL)
W
A50-9 (CANH)
B
No. 2 CAN junction connector
A50-20 (CANL)
W
A50-10 (CANH)
Y
ECM
A50-21 (CANL)
W
NO. 2 CAN JUNCTION CONNECTOR
Table 2. Text in Illustration *a
Front view of wire harness connector
(to No. 2 CAN Junction Connector)
*b
for Pre-collision City Sensor (w/ Pre-collision System)
*c
for No. 3 CAN Junction Connector
*d
for No. 1 CAN Junction Connector
No. 2 CAN Junction Connector
Wiring Color
Connect to
Q13-1 (CANH)
R
Pre-collision city sensor*
Q13-7 (CANL)
W
Q13-2 (CANH)
SB
No. 3 CAN junction connector
Q13-8 (CANL)
W
Q13-3 (CANH)
B
No. 1 CAN junction connector
Q13-9 (CANL)
W
*: w/ Pre-collision System
NO. 3 CAN JUNCTION CONNECTOR
w/ Entry and Start System:
Table 3. Text in Illustration *a
Rear view of wire harness connector
(to No. 3 CAN Junction Connector)
*b
for Power Management Control ECU
*c
for Certification ECU (Smart Key ECU Assembly)
*d
for Power Steering ECU Assembly
*e
for No. 2 CAN Junction Connector
*f
for Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)
*g
for Yaw Rate Sensor
*h
for Network Gateway ECU
*i
for Engine Stop and Start ECU (w/ Stop and Start System)
for Air Conditioning Amplifier Assembly (for 1ZR-FAE, 2ZR-FAE)
*j
for Combination Meter Assembly
*k
for Airbag Sensor Assembly
-
-
No. 3 CAN Junction Connector
Wiring Color
Connect to
H88-1 (CANH)
G
Power management control ECU
H88-12 (CANL)
W
H88-2 (CANH)
SB
Certification ECU (smart key ECU assembly)
H88-13 (CANL)
W
H88-3 (CANH)
SB
Power steering ECU assembly
H88-14 (CANL)
W
H88-4 (CANH)
SB
No. 2 CAN junction connector
H88-15 (CANL)
W
H88-5 (CANH)
BR
Spiral with sensor cable sub-assembly (steering angle sensor)
H88-16 (CANL)
W
H88-6 (CANH)
L
Yaw rate sensor
H88-17 (CANL)
W
H88-7 (CANH)
LG
Network gateway ECU
H88-18 (CANL)
W
H88-8 (CANH)
R*1
V*2
Engine stop and start ECU*1
Air conditioning amplifier assembly*2
H88-19 (CANL)
W
H88-9 (CANH)
SB
Combination meter assembly
H88-20 (CANL)
W
H88-11 (CANH)
Y
Airbag sensor assembly
H88-22 (CANL)
W
*1: w/ Stop and Start System
*2: for 1ZR-FAE, 2ZR-FAE
w/o Entry and Start System:
Table 4. Text in Illustration *a
Rear view of wire harness connector
(to No. 3 CAN Junction Connector)
*b
for Air Conditioning Amplifier Assembly
*c
for Power Steering ECU Assembly
*d
for No. 2 CAN Junction Connector
*e
for Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)
*f
for Yaw Rate Sensor
*g
for Network Gateway ECU
*h
for Engine Stop and Start ECU (w/ Stop and Start System)
*i
for Combination Meter Assembly
*j
for Airbag Sensor Assembly
No. 3 CAN Junction Connector
Wiring Color
Connect to
H88-2 (CANH)
V
Air conditioning amplifier assembly
H88-13 (CANL)
W
H88-3 (CANH)
SB
Power steering ECU assembly
H88-14 (CANL)
W
H88-4 (CANH)
SB
No. 2 CAN junction connector
H88-15 (CANL)
W
H88-5 (CANH)
BR
Spiral with sensor cable sub-assembly (steering angle sensor)
H88-16 (CANL)
W
H88-6 (CANH)
L
Yaw rate sensor
H88-17 (CANL)
W
H88-7 (CANH)
LG
Network gateway ECU
H88-18 (CANL)
W
H88-8 (CANH)
R
Engine stop and start ECU*
H88-19 (CANL)
W
H88-9 (CANH)
SB
Combination meter assembly
H88-20 (CANL)
W
H88-11 (CANH)
Y
Airbag sensor assembly
H88-22 (CANL)
W
*: w/ Stop and Start System
NO. 4 CAN JUNCTION CONNECTOR (for Radio and Display Type)
Table 5. Text in Illustration *a
Front view of wire harness connector
(to No. 4 CAN Junction Connector)
*b
for Radio and Display Receiver Assembly
*c
for Network Gateway ECU
*d
for Network Gateway ECU
No. 4 CAN Junction Connector
Wiring Color
Connect to
H134-1 (CANH)
SB
Radio and display receiver assembly
H134-7 (CANL)
W
H134-2 (CANH)
G
Network gateway ECU
H134-8 (CANL)
W
H134-3 (CANH)
BR
Network gateway ECU
H134-9 (CANL)
W
NO. 5 CAN JUNCTION CONNECTOR (for 1WW [w/ Entry and Start System])
Table 6. Text in Illustration *a
Rear view of wire harness connector
(to No. 5 CAN Junction Connector)
*b
for ECM
*c
for Power Management Control ECU
*d
for Air Conditioning Amplifier Assembly
No. 5 CAN Junction Connector
Wiring Color
Connect to
H126-5 (CANH)
R
ECM
H126-16 (CANL)
W
H126-6 (CANH)
G
Power management control ECU
H126-17 (CANL)
W
H126-7 (CANH)
V
Air conditioning amplifier assembly
H126-18 (CANL)
W
CHECK DLC3
Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and the CAN branch wire.
CAUTION:Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Note:After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (Click here).
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Click here).
-
Measure the resistance according to the value(s) in the table below.
Table 7. Text in Illustration *a
Front view of DLC3
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H16-6 (CANH) - H16-14 (CANL)
LG - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 66 Ω
H16-6 (CANH) - H16-4 (CG)
LG - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H16-14 (CANL) - H16-4 (CG)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H16-6 (CANH) - H16-16 (BAT)
LG - G
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H16-14 (CANL) - H16-16 (BAT)
W - G
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
CHECK NETWORK GATEWAY ECU
Table 8. Text in Illustration *A
Bus 2
*B
Bus 3
*C
V Bus
-
-
*a
Component without harness connected
(Network Gateway ECU)
-
-
-
Disconnect the network gateway ECU connector.
Table 9. Text in Illustration *A
Bus 2
*B
Bus 3
*C
V Bus
*a
Front view of wire harness connector
(to Network Gateway ECU)
Measure the resistance according to the value(s) in the table below.
Table 10. Bus 2 Terminal No. (Symbol)
Wiring Color
Switch Condition
Specified Condition
H131-18 (CA4H) - H131-17 (CA4L)
LG - W
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H131-18 (CA4H) - H131-10 (GND)
LG - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H131-17 (CA4L) - H131-10 (GND)
W - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H131-18 (CA4H) - H131-1 (BATT)
LG - R
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H131-17 (CA4L) - H131-1 (BATT)
W - R
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
Table 11. Bus 3 Terminal No. (Symbol)
Wiring Color
Switch Condition
Specified Condition
H131-6 (CA3H) - H131-21 (CA3L)
G - W
Cable disconnected from negative (-) battery terminal
108 to 132 Ω
H131-6 (CA3H) - H131-10 (GND)
G - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H131-21 (CA3L) - H131-10 (GND)
W - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H131-6 (CA3H) - H131-1 (BATT)
G - R
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H131-21 (CA3L) - H131-1 (BATT)
W - R
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
Table 12. Bus 3 Terminal No. (Symbol)
Wiring Color
Switch Condition
Specified Condition
H131-19 (CAYH) - H131-20 (CAYL)
BR - W
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H131-19 (CAYH) - H131-10 (GND)
BR - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H131-20 (CAYL) - H131-10 (GND)
W - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H131-19 (CAYH) - H131-1 (BATT)
BR - R
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H131-20 (CAYL) - H131-1 (BATT)
W - R
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
Table 13. V Bus Terminal No. (Symbol)
Wiring Color
Switch Condition
Specified Condition
H131-14 (CA6H) - H131-10 (GND)
LG - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H131-5 (CA6L) - H131-10 (GND)
W - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H131-14 (CA6H) - H131-1 (BATT)
LG - R
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H131-5 (CA6L) - H131-1 (BATT)
W - R
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK PRE-COLLISION CITY SENSOR (w/ Pre-collision System)
-
Disconnect the pre-collision city sensor connector.
Table 14. Text in Illustration *a
Front view of wire harness connector
(to Pre-collision City Sensor)
*b
Front view of DLC3
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Switch Condition
Specified Condition
Q12-5 (CA1P) - Q12-11 (CA1N)
R - W
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
Q12-5 (CA1P) - Q12-10 (GND)
R - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
Q12-11 (CA1N) - Q12-10 (GND)
W - W-B
Cable disconnected from negative (-) battery terminal
200 Ω or higher
Q12-5 (CA1P) - H16-16 (BAT)
R - G
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
Q12-11 (CA1N) - H16-16 (BAT)
W - G
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK ECM (for 1ZR-FAE, 2ZR-FAE)
Disconnect the A76 and C111 ECM connectors.
Table 15. Text in Illustration *a
Front view of wire harness connector
(to ECM)
-
-
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
A76-13 (CANH) - A76-26 (CANL)
Y - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
108 to 132 Ω
A76-13 (CANH) - C111-59 (E1)
Y - BR
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A76-26 (CANL) - C111-59 (E1)
W - BR
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A76-13 (CANH) - A76-1 (BATT)
Y - P
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
A76-26 (CANL) - A76-1 (BATT)
W - P
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
CHECK ECM (for 1WW)
Table 16. Text in Illustration *A
Bus 2
*B
Sub Bus 12
-
Disconnect the A76 ECM connector.
Table 17. Text in Illustration *A
Bus 2
*B
Sub Bus 12
*a
Front view of wire harness connector
(to ECM)
Measure the resistance according to the value(s) in the table below.
Table 18. Bus 2 Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
A76-26 (CANH) - A76-25 (CANL)
Y - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
108 to 132 Ω
A76-26 (CANH) - A76-4 (E1)
Y - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A76-25 (CANL) - A76-4 (E1)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A76-26 (CANH) - A76-15 (BATT)
Y - B
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
A76-25 (CANL) - A76-15 (BATT)
W - B
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
Table 19. Sub Bus 12 Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
A76-13 (CANP) - A76-12 (CANN)
R - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
108 to 132 Ω
A76-13 (CANP) - A76-4 (E1)
R - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A76-12 (CANN) - A76-4 (E1)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A76-13 (CANP) - A76-15 (BATT)
R - B
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
A76-12 (CANN) - A76-15 (BATT)
W - B
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK POWER MANAGEMENT CONTROL ECU (w/ Entry and Start System)
Table 20. Text in Illustration *A
Bus 2
*B
Sub Bus 12
-
Disconnect the H71 power management control ECU connector.
Table 21. Text in Illustration *A
Bus 2
*B
Sub Bus 12
*a
Rear view of wire harness connector
(to Power Management Control ECU)
Measure the resistance according to the value(s) in the table below.
Table 22. Bus 2 Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H71-14 (CA1H) - H71-13 (CA1L)
G - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H71-14 (CA1H) - H71-6 (GND)
G - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H71-13 (CA1L) - H71-6 (GND)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H71-14 (CA1H) - H71-1 (AM22)
G - L
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H71-13 (CA1L) - H71-1 (AM22)
W - L
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
Table 23. Sub Bus 12 Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H71-12 (CA3P) - H71-11 (CA3N)
G - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
108 to 132 Ω
H71-12 (CA3P) - H71-6 (GND)
G - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H71-11 (CA3N) - H71-6 (GND)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H71-12 (CA3P) - H71-1 (AM22)
G - L
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H71-11 (CA3N) - H71-1 (AM22)
W - L
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK POWER MANAGEMENT CONTROL ECU (for 1WW [w/o Entry and Start System])
-
Disconnect the H72 power management control ECU connector.
Table 24. Text in Illustration *a
Rear view of wire harness connector
(to Power Management Control ECU)
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H72-4 (CA3P) - H72-3 (CA3N)
R - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
108 to 132 Ω
H72-4 (CA3P) - H72-12 (GND)
R - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H72-3 (CA3N) - H72-12 (GND)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H72-4 (CA3P) - H72-8 (AM21)
R - B
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H72-3 (CA3N) - H72-8 (AM21)
W - B
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
Table 25. Text in Illustration *1
Vehicle Rear Side
*2
Vehicle Front Side
Disconnect the H81, DH and DE main body ECU (instrument panel junction block assembly) connectors.
Table 26. Text in Illustration *a
Front view of wire harness connector
to Main Body ECU (Instrument Panel Junction Block Assembly)
-
-
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H81-15 (CANH) - H81-16 (CANL)
P - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H81-15 (CANH) - DE-28 (GND1)
P - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H81-16 (CANL) - DE-28 (GND1)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H81-15 (CANH) - DH-12 (BECU)
P - B
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H81-16 (CANL) - DH-12 (BECU)
W - B
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
CHECK BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)
Table 27. Text in Illustration *A
for CVT
*B
for Manual Transaxle
-
Disconnect the A78*1 or A79*2 brake actuator assembly (skid control ECU) connector.
Table 28. Text in Illustration *A
for CVT
*B
for Manual Transaxle
*a
Front view of wire harness connector
(to Brake Actuator Assembly [Skid Control ECU])
*1: for CVT
*2: for Manual Transaxle
Measure the resistance according to the value(s) in the table below.
Table 29. for CVT Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
A78-26 (CANH) - A78-14 (CANL)
R - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
A78-26 (CANH) - A78-38 (GND1)
R - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A78-14 (CANL) - A78-38 (GND1)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A78-26 (CANH) - A78-1 (+BM)
R - L
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
A78-14 (CANL) - A78-1 (+BM)
W - L
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
Table 30. for Manual Transaxle Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
A79-2 (CANH) - A79-16 (CANL)
R - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
A79-2 (CANH) - A79-14 (GND1)
R - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A79-16 (CANL) - A79-14 (GND1)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
A79-2 (CANH) - A79-15 (+BM)
R - L
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
A79-16 (CANL) - A79-15 (+BM)
W - L
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (for Automatic Air Conditioning System)
-
Disconnect the H46 air conditioning amplifier assembly connector.
Table 31. Text in Illustration *a
Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H46-11 (CANH) - H46-12 (CANL)
V - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H46-11 (CANH) - H46-14 (GND)
V - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H46-12 (CANL) - H46-14 (GND)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H46-11 (CANH) - H46-21 (B)
V - W
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H46-12 (CANL) - H46-21 (B)
W - W
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (for Manual Air Conditioning System or w/o Air Conditioning System)
-
Disconnect the H118 air conditioning amplifier assembly connector.
Table 32. Text in Illustration *a
Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)
*b
Front view of DLC3
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H118-8 (CANH) - H118-9 (CANL)
V - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H118-8 (CANH) - H118-23 (GND)
V - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H118-9 (CANL) - H118-23 (GND)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H118-8 (CANH) - H16-16 (BAT)
V - G
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H118-9 (CANL) - H16-16 (BAT)
W - G
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK COMBINATION METER ASSEMBLY
-
Disconnect the H62 combination meter assembly connector.
Table 33. Text in Illustration *a
Front view of wire harness connector
(to Combination Meter Assembly)
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H62-22 (CANH) - H62-23 (CANL)
SB - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
108 to 132 Ω
H62-22 (CANH) - H62-21 (ET)
SB - BR
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H62-23 (CANL) - H62-21 (ET)
W - BR
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H62-22 (CANH) - H62-40 (B)
SB - W
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H62-23 (CANL) - H62-40 (B)
W - W
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK AIRBAG SENSOR ASSEMBLY
-
Disconnect the H19 airbag sensor assembly connector (Click here).
Table 34. Text in Illustration *a
Rear view of wire harness connector
(to Airbag Sensor Assembly)
*b
Front view of DLC3
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H19-13 (CANH) - H19-22 (CANL)
Y - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H19-13 (CANH) - H19-25 (E1)
Y - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H19-22 (CANL) - H19-25 (E1)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H19-13 (CANH) - H16-16 (BAT)
Y - G
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H19-22 (CANL) - H16-16 (BAT)
W - G
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY (STEERING ANGLE SENSOR)
-
Disconnect the H128 spiral with sensor cable sub-assembly (steering angle sensor) connector.
Table 35. Text in Illustration *a
Rear view of wire harness connector
(to Spiral with Sensor Cable Sub-assembly [Steering Angle Sensor])
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H128-4 (CANH) - H128-3 (CANL)
BR - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H128-4 (CANH) - H128-2 (ESS)
BR - BR
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H128-3 (CANL) - H128-2 (ESS)
W - BR
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H128-4 (CANH) - H128-6 (BAT)
BR - W
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H128-3 (CANL) - H128-6 (BAT)
W - W
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK YAW RATE SENSOR
-
Disconnect the H68 yaw rate sensor connector.
Table 36. Text in Illustration *a
Front view of wire harness connector
(to Yaw Rate Sensor)
*b
Front view of DLC3
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H68-2 (CANH) - H68-3 (CANL)
L - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H68-2 (CANH) - H68-4 (GNDA)
L - BR
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H68-3 (CANL) - H68-4 (GNDA)
W - BR
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H68-2 (CANH) - H16-16 (BAT)
L - G
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H68-3 (CANL) - H16-16 (BAT)
W - G
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK POWER STEERING ECU ASSEMBLY
-
Disconnect the H49 power steering ECU assembly connector.
Table 37. Text in Illustration *a
Front view of wire harness connector
(to Power Steering ECU Assembly)
*b
Front view of DLC3
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H49-2 (CANH) - H49-8 (CANL)
SB - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H49-2 (CANH) - H16-4 (CG)
SB - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H49-8 (CANL) - H16-4 (CG)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H49-2 (CANH) - H16-16 (BAT)
SB - G
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H49-8 (CANL) - H16-16 (BAT)
W - G
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry and Start System)
-
Disconnect the H51 certification ECU (smart key ECU assembly) connector.
Table 38. Text in Illustration *a
Rear view of wire harness connector
(to Certification ECU [Smart Key ECU Assembly])
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H51-9 (CANH) - H51-10 (CANL)
SB - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H51-9 (CANH) - H51-15 (E)
SB - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H51-10 (CANL) - H51-15 (E)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H51-9 (CANH) - H51-17 (CUTB)
SB - W
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H51-10 (CANL) - H51-17 (CUTB)
W - W
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (for Radio and Display Type)
-
Disconnect the H105 and H107 radio and display receiver assembly connectors.
Table 39. Text in Illustration *a
Front view of wire harness connector
(to Radio and Display Receiver Assembly)
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H105-9 (CANH) - H105-10 (CANL)
SB - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H105-9 (CANH) - H107-7 (GND1)
SB - BR
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H105-10 (CANL) - H107-7 (GND1)
W - BR
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H105-9 (CANH) - H107-4 (+B1)
SB - SB
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H105-10 (CANL) - H107-4 (+B1)
W - SB
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-
CHECK ENGINE STOP AND START ECU (w/ Stop and Start System)
-
Disconnect the A73 and H121 engine stop and start ECU connectors.
Table 40. Text in Illustration *a
Rear view of wire harness connector
(to Engine Stop and Start ECU)
Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
H121-15 (CANH) - H121-16 (CANL)
R - W
HIGH-level CAN bus line - LOW-level CAN bus line
Cable disconnected from negative (-) battery terminal
54 to 69 Ω
H121-15 (CANH) - A73-8 (GND)
R - W-B
HIGH-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H121-16 (CANL) - A73-8 (GND)
W - W-B
LOW-level CAN bus line - Ground
Cable disconnected from negative (-) battery terminal
200 Ω or higher
H121-15 (CANH) - A73-7 (BIN)
R - L
HIGH-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
H121-16 (CANL) - A73-7 (BIN)
W - L
LOW-level CAN bus line - Battery positive (+)
Cable disconnected from negative (-) battery terminal
6 kΩ or higher
-