Inspection Procedure: Procedure
- CHECK CAN MS BUS WIRE
- Turn the ignition switch off.TEXT IN ILLUSTRATION
*a Component with harness connected
(to Main Body ECU) - Measure the resistance according to the value(s) in the table below.
Result
Tester Connection Switch Condition Result Proceed to E51-11 (CANP) - E51-12 (CANN) Ignition switch off 54 to 69 Ω A E51-11 (CANP) - E51-12 (CANN) Ignition switch off 70 Ω or higher B E51-11 (CANP) - E51-12 (CANN) Ignition switch off Less than 54 Ω C
C → See step 9
B → See step 5
A: Go to next step
- Turn the ignition switch off.
- CHECK FOR SHORT TO +B IN CAN MS BUS WIRE
- Measure the resistance according to the value(s) in the table below.TEXT IN ILLUSTRATION
*1 DLC3 *a Component with harness connected
(to Main Body ECU)Standard Resistance
Tester Connection Condition Specified Condition E51-11 (CANP) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher E51-12 (CANN) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher
NG → See step 15
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- CHECK FOR SHORT TO GND IN CAN MS BUS WIRE
- Measure the resistance according to the value(s) in the table below.TEXT IN ILLUSTRATION
*1 DLC3 *a Component with harness connected
(to Main Body ECU)Standard Resistance
Tester Connection Switch Condition Specified Condition E51-11 (CANP) - E11-4 (CG) Ignition switch off 200 Ω or higher E51-12 (CANN) - E11-4 (CG) Ignition switch off 200 Ω or higher
NG → See step 20
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- CHECK FOR OPEN IN CAN MS BUS WIRE (CAN MS BUS BRANCH WIRE)
- Check for open in the certification ECU MS bus branch wire. Refer to DTC U0327: Software Incompatibility with Vehicle Security Control Module .
NG → REPAIR OR REPLACE CAN MS BUS BRANCH WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - CERTIFICATION ECU)
OK → REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
- CHECK FOR OPEN IN CAN MS BUS MAIN WIRE (COMBINATION METER MAIN WIRE)
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to CAN No. 3 Junction Connector) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition E72-2 (CANH) - E72-7 (CANL) Ignition switch off 108 to 132 Ω
NG → See step 8
OK: Go to next step
- Disconnect the CAN No. 3 junction connector.
- CHECK FOR OPEN IN CAN MS BUS MAIN WIRE (MAIN BODY ECU MAIN WIRE)
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to CAN No. 3 Junction Connector) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition E72-3 (CANH) - E72-8 (CANL) Ignition switch off 108 to 132 Ω
NG → See step 7
OK → REPLACE CAN NO. 3 JUNCTION CONNECTOR
- Disconnect the CAN No. 3 junction connector.
- CHECK FOR OPEN IN CAN BUS MAIN WIRE (MAIN BODY ECU - CAN NO. 3 JUNCTION CONNECTOR)
- Reconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Main Body ECU) - Disconnect the main body ECU connector from the main body ECU.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition E51-11 (CANP) - E51-12 (CANN) Ignition switch off 108 to 132 Ω
NG → REPAIR OR REPLACE CAN MS BUS MAIN WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU)
OK → REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
- Reconnect the CAN No. 3 junction connector.
- CHECK FOR OPEN IN CAN MS BUS MAIN WIRE (COMBINATION METER - CAN NO. 3 JUNCTION CONNECTOR)
- Reconnect the CAN No. 3 junction connector.
- Disconnect the combination meter connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Combination Meter) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition E46-13 (TX-) - E46-14 (TX1-) Ignition switch off 108 to 132 Ω
NG → REPAIR OR REPLACE CAN MS BUS MAIN WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - COMBINATION METER)
OK → See step 25
- CHECK FOR SHORT IN CAN MS BUS WIRES (MAIN BODY ECU MAIN WIRE)
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to CAN No. 3 Junction Connector) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition E72-3 (CANH) - E72-8 (CANL) Ignition switch off 108 to 132 Ω
NG → See step 13
OK: Go to next step
- Disconnect the CAN No. 3 junction connector.
- CHECK FOR SHORT IN CAN MS BUS WIRES (COMBINATION METER MAIN WIRE)
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to CAN No. 3 Junction Connector) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition E72-2 (CANH) - E72-7 (CANL) Ignition switch off 108 to 132 Ω
NG → See step 14
OK: Go to next step
- Disconnect the CAN No. 3 junction connector.
- CHECK FOR SHORT IN CAN MS BUS WIRES (CAN NO. 3 JUNCTION CONNECTOR - CERTIFICATION ECU)
- Disconnect the certification ECU connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Certification ECU) - Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to CAN No. 3 Junction Connector) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition E72-1 (CANH) - E72-6 (CANL) Ignition switch off 1 MΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - CERTIFICATION ECU)
OK: Go to next step
- Disconnect the certification ECU connector.
- CHECK FOR SHORT IN CAN MS BUS WIRES (CAN No. 3 JUNCTION CONNECTOR)
- Reconnect the CAN No. 3 junction connector.
- Measure the resistance according to the value(s) in the table below.TEXT IN ILLUSTRATION
*a Front view of wire harness connector
(to Certification ECU)NOTE:The resistance must be measured after the main body ECU, combination meter and No. 3 junction connectors are reconnected.
Standard Resistance
Tester Connection Switch Condition Specified Condition E36-27 (CANH) - E36-28 (CANL) Ignition switch off 54 Ω or higher
NG → REPLACE CAN NO. 3 JUNCTION CONNECTOR
OK → REPLACE CERTIFICATION ECU
- CHECK FOR SHORT IN CAN BUS MAIN WIRE (MAIN BODY ECU - CAN NO. 3 JUNCTION CONNECTOR)
- Disconnect the main body ECU connector from the main body ECU.
- Reconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Main Body ECU) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition E51-11 (CANP) - E51-12 (CANN) Ignition switch off 108 to 132 Ω
NG → REPAIR OR REPLACE CAN MS BUS MAIN WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU)
OK → REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
- CHECK FOR SHORT IN CAN MS BUS WIRES (COMBINATION METER - CAN NO. 3 JUNCTION CONNECTOR)
- Disconnect the combination meter connector.
- Reconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Combination Meter) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition E46-13 (TX-) - E46-14 (TX1-) Ignition switch off 108 to 132 Ω
NG → REPAIR OR REPLACE CAN MS BUS MAIN WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - COMBINATION METER)
OK → See step 25
- CHECK FOR SHORT TO +B IN CAN MS BUS WIRE (MAIN BODY ECU MAIN WIRE)
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a 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
*1 DLC3 Standard Resistance
Tester Connection Condition Specified Condition E72-3 (CANH) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher E72-8 (CANL) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher
NG → See step 18
OK: Go to next step
- Disconnect the CAN No. 3 junction connector.
- CHECK FOR SHORT TO +B IN CAN MS BUS WIRE (COMBINATION METER MAIN WIRE)
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a 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
*1 DLC3 Standard Resistance
Tester Connection Condition Specified Condition E72-2 (CANH) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher E72-7(CANL) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher
NG → See step 19
OK: Go to next step
- Disconnect the CAN No. 3 junction connector.
- CHECK FOR SHORT TO +B IN CAN MS BUS WIRE (CAN NO. 3 JUNCTION CONNECTOR - CERTIFICATION ECU)
- Disconnect the certification ECU connector.
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a 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
*1 DLC3 Standard Resistance
Tester Connection Condition Specified Condition E72-1 (CANH) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher E72-6 (CANL) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher
NG → REPAIR OR REPLACE CAN MS BUS BRANCH WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - CERTIFICATION ECU)
OK → REPLACE CERTIFICATION ECU
- CHECK FOR SHORT TO +B IN CAN MS BUS WIRE (CAN NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU)
- Disconnect the main body ECU connector from the main body ECU.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a 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
*1 DLC3 Standard Resistance
Tester Connection Condition Specified Condition E72-3 (CANH) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher E72-8 (CANL) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher
NG → REPAIR OR REPLACE CAN MS BUS MAIN WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU)
OK → REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
- Disconnect the main body ECU connector from the main body ECU.
- CHECK FOR SHORT TO +B IN CAN MS BUS WIRE (CAN NO. 3 JUNCTION CONNECTOR - COMBINATION METER)
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to CAN No. 3 Junction Connector) - Disconnect the combination meter connector.
- Measure the resistance according to the value(s) in the table below.TEXT IN ILLUSTRATION
*1 DLC3 Standard Resistance
Tester Connection Condition Specified Condition E72-2 (CANH) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher E72-7 (CANL) - E11-16 (BAT) Cable is disconnected from negative (-) battery terminal 6 kΩ or higher
NG → REPAIR OR REPLACE CAN MS BUS MAIN WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - COMBINATION METER)
OK → See step 25
- Disconnect the CAN No. 3 junction connector.
- CHECK FOR SHORT TO GND IN CAN MS BUS WIRE (MAIN BODY ECU MAIN WIRE)
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a 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
*1 DLC3 Standard Resistance
Tester Connection Switch Condition Specified Condition E72-3 (CANH) - E11-4 (CG) Ignition switch off 200 Ω or higher E72-8 (CANL) - E11-4 (CG) Ignition switch off 200 Ω or higher
NG → See step 24
OK: Go to next step
- Disconnect the CAN No. 3 junction connector.
- CHECK FOR SHORT TO GND IN CAN MS BUS WIRE (COMBINATION METER MAIN WIRE)
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a 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
*1 DLC3 Standard Resistance
Tester Connection Switch Condition Specified Condition E72-2 (CANH) - E11-4 (CG) Ignition switch off 200 Ω or higher E72-7 (CANL) - E11-4 (CG) Ignition switch off 200 Ω or higher
NG → See step 23
OK: Go to next step
- Disconnect the CAN No. 3 junction connector.
- CHECK FOR SHORT TO GND IN CAN MS BUS WIRE (CAN NO. 3 JUNCTION CONNECTOR - CERTIFICATION ECU)
- Disconnect the certification ECU connector.
- Disconnect the CAN No. 3 junction connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a 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
*1 DLC3 Standard Resistance
Tester Connection Switch Condition Specified Condition E72-1 (CANH) - E11-4 (CG) Ignition switch off 200 Ω or higher E72-6 (CANL) - E11-4 (CG) Ignition switch off 200 Ω or higher
NG → REPAIR OR REPLACE CAN MS BUS BRANCH WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - CERTIFICATION ECU)
OK → REPLACE CERTIFICATION ECU
- CHECK FOR SHORT TO GND IN CAN MS BUS WIRE (CAN NO. 3 JUNCTION CONNECTOR - COMBINATION METER)
- Disconnect the combination meter connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a 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
*1 DLC3 Standard Resistance
Tester Connection Switch Condition Specified Condition E72-2 (CANH) - E11-4 (CG) Ignition switch off 200 Ω or higher E72-7 (CANL) - E11-4 (CG) Ignition switch off 200 Ω or higher
NG → REPAIR OR REPLACE CAN MS BUS MAIN WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - COMBINATION METER)
OK → See step 25
- Disconnect the combination meter connector.
- CHECK FOR SHORT TO GND IN CAN MS BUS WIRE (CAN NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU)
- Disconnect the main body ECU connector from the main body ECU.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a 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
*1 DLC3 Standard Resistance
Tester Connection Switch Condition Specified Condition E72-3 (CANH) - E11-4 (CG) Ignition switch off 200 Ω or higher E72-8 (CANL) - E11-4 (CG) Ignition switch off 200 Ω or higher
NG → REPAIR OR REPLACE CAN MS BUS MAIN WIRE OR CONNECTOR (CAN NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU)
OK → REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
- Disconnect the main body ECU connector from the main body ECU.
- REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL