Can Communication System Open In One Side Of Can Branch Line

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (BRAKE ACTUATOR)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (BRAKE ACTUATOR BRANCH WIRE)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (ABS AND TRACTION ACTUATOR)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (ABS AND TRACTION ACTUATOR BRANCH WIRE)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (YAW RATE SENSOR)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (YAW RATE SENSOR BRANCH WIRE)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (STEERING ANGLE SENSOR)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (STEERING ANGLE SENSOR BRANCH WIRE)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (POWER STEERING ECU)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (POWER STEERING ECU BRANCH WIRE)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (MAIN BODY ECU)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (MAIN BODY ECU BRANCH WIRE)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (AIR CONDITIONING AMPLIFIER)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (AIR CONDITIONING AMPLIFIER BRANCH WIRE)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (4WD CONTROL ECU)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (4WD CONTROL ECU BRANCH WIRE)

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE)

DESCRIPTION

1. *1: w/ Anti-lock Brake System
   
2. *2: w/ Vehicle Stability Control System
   
3. *3: for 4WD
   
4. *4: for 2WD (w/ Vehicle Stability Control System) and 4WD
   

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. Turn the ignition switch off before measuring the resistance of the main wire and the branch wire.
   
2. After the ignition switch is turned off, check that the key reminder warning system and light reminder buzzer are not in operation.
   
3. Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the ignition switch, any switches or doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
   

HINT:

1. Perform the following inspection for the ECUs (sensors) which are not displayed on the intelligent tester. If a malfunction cannot be identified, perform the following inspections for the ECUs (sensors) connected to the CAN communication system.
   

1. Do not remove the combination meter and ECM, as they are the end parts of the circuit. If removed, CAN communication will not be possible.
   

1. The open circuit confirmation of the combination meter, ECM and main wire is performed in the Check CAN Bus Line procedure of How to Proceed with Troubleshooting. This inspection only has procedures for checking for an open circuit on one side of the CAN branch wire.
   

NOTICE:

For vehicles without an anti-lock brake system, go to "Check for Open in One Side of Branch Wire (ABS and Traction Actuator)".

1. Disconnect the A27 brake actuator (skid control ECU) connector.
   

2. Select "Bus Check" on the intelligent tester display (RAV4_ACA30 RM000001RSW01ZX.html).
   

   Result

   Result	Proceed to
   "ABS/VSC/TRC" not displayed on intelligent tester.	A
   Several ECUs and sensors in addition to "ABS/VSC/TRC" not displayed on intelligent tester.	B

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistance of the main wire and the branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTICE:

   1. w/ Navigation System (for HDD):
      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
      

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A27-6 (CANH) - A27-5 (CANL)	Ignition switch off	54 to 64 Ω

NOTICE:

For vehicles without a vehicle stability control system, go to "Check for Open in One Side of Branch Wire (Steering Angle Sensor)".

1. Disconnect the A67 ABS and traction actuator (skid control ECU) connector.
   

2. Select "Bus Check" on the intelligent tester display (RAV4_ACA30 RM000001RSW01ZX.html).
   

   Result

   Result	Proceed to
   "ABS/VSC/TRC" not displayed on intelligent tester.	A
   Several ECUs and sensors in addition to "ABS/VSC/TRC" not displayed on intelligent tester.	B

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistance of the main wire and the branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTICE:

   1. w/ Navigation System (for HDD):
      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
      

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A67-25 (CANH) - A67-14 (CANL)	Ignition switch off	54 to 64 Ω

NOTICE:

For vehicles without a vehicle stability control system, go to "Check for Open in One Side of Branch Wire (Steering Angle Sensor)".

1. Disconnect the K25 yaw rate sensor connector.
   

2. Select "Bus Check" on the intelligent tester display (RAV4_ACA30 RM000001RSW01ZX.html).
   

   Result

   Result	Proceed to
   "Yaw Rate / Deceleration Sensor" not displayed on intelligent tester.	A
   Several ECUs and sensors in addition to "Yaw Rate / Deceleration Sensor" not displayed on intelligent tester.	B

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistance of the main wire and the branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTICE:

   1. w/ Navigation System (for HDD):
      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
      

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   K25-3 (CANH) - K25-2 (CANL)	Ignition switch off	54 to 64 Ω

NOTICE:

For vehicles without a 2WD with vehicle stability control system and 4WD, go to "Check for Open in One Side of Branch Wire (Power Steering ECU)".

1. Disconnect the E95 steering angle sensor connector.
   

2. Select "Bus Check" on the intelligent tester display (RAV4_ACA30 RM000001RSW01ZX.html).
   

   Result

   Result	Proceed to
   "Steering Angle Sensor" not displayed on intelligent tester.	A
   Several ECUs and sensors in addition to "Steering Angle Sensor" not displayed on intelligent tester.	B

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistance of the main wire and the branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTICE:

   1. w/ Navigation System (for HDD):
      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
      

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   E95-3 (CANH) - E95-2 (CANL)	Ignition switch off	54 to 64 Ω

1. Disconnect the E21 power steering ECU connector.
   

2. Select "Bus Check" on the intelligent tester display (RAV4_ACA30 RM000001RSW01ZX.html).
   

   Result

   Result	Proceed to
   "EPS" not displayed on intelligent tester.	A
   Several ECUs and sensors in addition to "EPS" not displayed on intelligent tester.	B

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistance of the main wire and the branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTICE:

   1. w/ Navigation System (for HDD):
      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
      

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   E21-2 (CANH) - E21-8 (CANL)	Ignition switch off	54 to 64 Ω

1. Disconnect the E20 main body ECU connector.
   

2. Select "Bus Check" on the intelligent tester display (RAV4_ACA30 RM000001RSW01ZX.html).
   

   Result

   Result	Proceed to
   "Main Body" not displayed on intelligent tester.	A
   Several ECUs and sensors in addition to "Main Body" not displayed on intelligent tester.	B

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistance of the main wire and the branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTICE:

   1. w/ Navigation System (for HDD):
      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
      

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   E20-15 (CANH) - E20-16 (CANL)	Ignition switch off	54 to 64 Ω

1. Disconnect the E41*1 or E42*2 air conditioning amplifier connector.
   

   1. *1: for Automatic Air Conditioning System
      
   2. *2: for Manual Air Conditioning System
      

2. Select "Bus Check" on the intelligent tester display (RAV4_ACA30 RM000001RSW01ZX.html).
   

   Result

   Result	Proceed to
   "Air Conditioner" not displayed on intelligent tester.	A
   Several ECUs and sensors in addition to "Air Conditioner" not displayed on intelligent tester.	B

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistance of the main wire and the branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTICE:

   1. w/ Navigation System (for HDD):
      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
      

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

   Standard Resistance:

   for Automatic Air Conditioning System

   Tester Connection	Switch Condition	Specified Condition
   E41-11 (CANH) - E41-12 (CANL)	Ignition switch off	54 to 64 Ω

   for Manual Air Conditioning System

   Tester Connection	Switch Condition	Specified Condition
   E42-8 (CANH) - E42-9 (CANL)	Ignition switch off	54 to 64 Ω

NOTICE:

For vehicles without a 4WD, go to "Check for Open in One Side of Branch Wire (Center Airbag Sensor Assembly)".

1. Disconnect the E67 4WD control ECU connector.
   

2. Select "Bus Check" on the intelligent tester display (RAV4_ACA30 RM000001RSW01ZX.html).
   

   Result

   Result	Proceed to
   "Four Wheel Drive Control" not displayed on intelligent tester.	A
   Several ECUs and sensors in addition to "Four Wheel Drive Control" not displayed on intelligent tester.	B

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistance of the main wire and the branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTICE:

   1. w/ Navigation System (for HDD):
      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
      

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   E67-14 (CANH) - E67-16 (CANL)	Ignition switch off	54 to 64 Ω

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistance of the main wire and the branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTICE:

   1. w/ Navigation System (for HDD):
      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
      

2. Disconnect the E49 center airbag sensor connector.
   

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   E49-13 (CANH) - E49-22 (CANL)	Ignition switch off	54 to 64 Ω