Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Turn the ignition switch OFF before measuring the resistances of the main wire and the 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 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:

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.
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.
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.

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

Disconnect the A19 ABS and traction actuator (skid control ECU) connector.

Select "BUS CHECK" on the intelligent tester display via the CAN VIM (see DIAGNOSIS SYSTEM ).

Result

RESULT CHART

Result	Proceed to
ABS/VSC/TRAC not displayed on intelligent tester.	A
Several ECUs and sensors other than ABS/VSC/TRAC not displayed on intelligent tester.	B

B: Go to step 3

A: Go TO NEXT STEP.

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (ABS AND TRACTION ACTUATOR BRANCH WIRE)
1. Measure the resistance of the wire harness side connector.
  Standard resistance: 54 to 69 Ω
  
  Fig 1: Identifying A19 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE CAN BRANCH WIRE AND CONNECTOR (ABS AND TRACTION ACTUATOR)

OK: REPLACE ABS AND TRACTION ACTUATOR (SKID CONTROL ECU)

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

Disconnect the K6 yaw rate sensor connector.

Select "BUS CHECK" on the intelligent tester display via the CAN VIM (see DIAGNOSIS SYSTEM ).

Result

RESULT CHART

Result	Proceed to
YAW / DECELERAT Sensor not displayed on intelligent tester.	A
Several ECUs and sensors other than YAW / DECELERAT Sensor not displayed on intelligent tester.	B

B: Go to step 5

A: Go TO NEXT STEP.

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (YAW RATE SENSOR BRANCH WIRE)
1. Measure the resistance of the wire harness side connector.
  Standard resistance: 54 to 69 Ω
  
  Fig 2: Identifying K6 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE CAN BRANCH WIRE AND CONNECTOR (YAW RATE SENSOR)

OK: REPLACE YAW RATE SENSOR

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

Disconnect the E18 power steering ECU connector.

Select "BUS CHECK" on the intelligent tester display via the CAN VIM (see DIAGNOSIS SYSTEM ).

Result

RESULT CHART

Result	Proceed to
EPS not displayed on intelligent tester.	A
Several ECUs and sensors other than EPS not displayed on intelligent tester.	B

B: Go to step 7

A: Go TO NEXT STEP.

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (POWER STEERING ECU BRANCH WIRE)
1. Measure the resistance of the wire harness side connector.
  Standard resistance: 54 to 69 Ω
  
  Fig 3: Identifying E18 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE CAN BRANCH WIRE AND CONNECTOR (POWER STEERING ECU)

OK: REPLACE POWER STEERING ECU

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

Disconnect the E17 main body ECU connector.

Select "BUS CHECK" on the intelligent tester display via the CAN VIM (see DIAGNOSIS SYSTEM ).

Result

RESULT CHART

Result	Proceed to
MAIN BODY not displayed on intelligent tester.	A
Several ECUs and sensors other than MAIN BODY not displayed on intelligent tester.	B

B: Go to step 9

A: Go TO NEXT STEP.

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (MAIN BODY ECU BRANCH WIRE)
1. Measure the resistance of the wire harness side connector.
  Standard resistance: 54 to 69 Ω
  
  Fig 4: Identifying E17 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE CAN BRANCH WIRE AND CONNECTOR (MAIN BODY ECU)

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)

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

Disconnect the E37*1 or E36*2 air conditioning amplifier connector.
HINT:
- *1: for Automatic air conditioning system.
- *2: for Manual air conditioning system.

Select "BUS CHECK" on the intelligent tester display via the CAN VIM (see DIAGNOSIS SYSTEM ).

Result

RESULT CHART

Result	Proceed to
A/C not displayed on intelligent tester.	A
Several ECUs and sensors other than A/C not displayed on intelligent tester.	B

B: Go to step 11

A: Go TO NEXT STEP.

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (AIR CONDITIONING AMPLIFIER BRANCH WIRE)
1. Measure the resistance of the wire harness side connector.
  Standard resistance: 54 to 69 Ω
  
  Fig 5: Identifying E37 And E36 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE CAN BRANCH WIRE AND CONNECTOR (AIR CONDITIONING AMPLIFIER)

OK: REPLACE AIR CONDITIONING AMPLIFIER

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

Disconnect the E11 steering angle sensor connector.

Select "BUS CHECK" on the intelligent tester display via the CAN VIM (see DIAGNOSIS SYSTEM ).

Result

RESULT CHART

Result	Proceed to
STEERING SENSOR not displayed on intelligent tester.	A
Several ECUs and sensors other than STEERING SENSOR not displayed on intelligent tester.	B

B: Go to step 13

A: Go TO NEXT STEP.

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (STEERING ANGLE SENSOR BRANCH WIRE)
1. Measure the resistance of the wire harness side connector.
  Standard resistance: 54 to 69 Ω
  
  Fig 6: Identifying E11 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE CAN BRANCH WIRE AND CONNECTOR (STEERING ANGLE SENSOR)

OK: REPLACE STEERING ANGLE SENSOR

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

NOTE: For vehicles without 4WD, go to 15.

Disconnect the E57 4WD control ECU connector.

Select "BUS CHECK" on the intelligent tester display via the CAN VIM (see DIAGNOSIS SYSTEM ).

Result

RESULT CHART

Result	Proceed to
4WD not displayed on intelligent tester.	A
Several ECUs and sensors other than 4WD not displayed on intelligent tester.	B

B: Go to step 15

A: Go TO NEXT STEP.

CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (4WD CONTROL ECU BRANCH WIRE)
1. Measure the resistance of the wire harness side connector.
  Standard resistance: 54 to 69 Ω
  
  Fig 7: Identifying E57 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE CAN BRANCH WIRE AND CONNECTOR (4WD CONTROL ECU)

OK: REPLACE 4WD CONTROL ECU
CHECK FOR OPEN IN ONE SIDE OF BRANCH WIRE (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE)
1. Disconnect the E45 center airbag sensor connector.
2. Measure the resistance of the wire harness side connector.
  Standard resistance: 54 to 69 Ω
  
  Fig 8: Identifying E45 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE CAN BRANCH WIRE AND CONNECTOR (CENTER AIRBAG SENSOR ASSEMBLY)

OK: REPLACE CENTER AIRBAG SENSOR ASSEMBLY