Part 2
NETWORKING: CAN COMMUNICATION SYSTEM: Check CAN Bus Lines for Short Circuit
- Check CAN Bus Lines for Short Circuit
11. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 J/C)
(a) Reconnect the CAN No. 1 junction connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NOTICE:
The resistance must be measured after the main wire connected ECUs (ECM and certification ECU), and the CAN No. 1 and No. 2 junction connectors are reconnected.
NG -- REPLACE CAN NO. 1 JUNCTION CONNECTOR
OK -- Continue to next step.
12. CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER)
(a) Reconnect the combination meter connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE COMBINATION METER ASSEMBLY Removal
OK -- Continue to next step.
13. CHECK FOR SHORT IN CAN BUS WIRES (STEERING ANGLE SENSOR)
(a) Reconnect the steering angle sensor connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE SPIRAL CABLE W/STEERING SENSOR SUB-ASSEMBLY Removal
OK -- Continue to next step.
14. CHECK FOR SHORT IN CAN BUS WIRE (POWER STEERING ECU)
(a) Reconnect the power steering ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE POWER STEERING ECU Removal
OK -- Continue to next step.
15. CHECK FOR SHORT IN CAN BUS WIRES (YAW RATE SENSOR)
(a) Reconnect the yaw rate sensor connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE YAW RATE SENSOR ASSEMBLY Removal
OK -- Continue to next step.
16. CHECK FOR SHORT IN CAN BUS WIRES (POWER MANAGEMENT CONTROL ECU)
(a) Reconnect the power management control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE POWER MANAGEMENT CONTROL ECU Removal
OK -- Continue to next step.
17. CHECK FOR SHORT IN CAN BUS WIRES (CENTER AIRBAG SENSOR ASSEMBLY)
(a) Reconnect the center airbag sensor assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal
OK -- REPLACE MULTIPLEX NETWORK BODY ECU (MAIN BODY ECU) Removal
18. CHECK FOR SHORT IN CAN BUS WIRE (CAN NO. 2 J/C - CAN NO. 1 J/C)
(a) Reconnect the CAN No. 1 junction connector.
(b) Disconnect the CAN No. 2 junction connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 J/C - CAN NO. 2 JUNCTION CONNECTOR)
OK -- Continue to next step.
19. CHECK FOR SHORT IN CAN BUS WIRE (CAN NO. 2 J/C - CERTIFICATION ECU)
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CHECK FOR SHORT IN CAN BUS WIRES (CERTIFICATION ECU)
OK -- Continue to next step.
20. CHECK FOR SHORT IN CAN BUS WIRE (CAN NO. 2 J/C - SKID CONTROL ECU)
(a) Disconnect the skid control ECU connector.
Text in Illustration
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
Result:
C -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 2 J/C - SKID CONTROL ECU)
B -- CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C)
A -- Continue to next step.
21. CHECK FOR SHORT IN CAN BUS WIRE (CAN NO. 2 J/C - NAVIGATION ECU)
(a) Disconnect the navigation ECU connector.
Text in Illustration
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 2 J/C - NAVIGATION ECU)
OK -- Continue to next step.
22. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 J/C)
(a) Reconnect the CAN No. 1 and No. 2 junction connectors.
(b) Measure the resistance according to the value(s) in the table below.
NOTICE:
The resistance must be measured after the main wire connected ECUs (ECM and certification ECU), and the CAN No. 1 and No. 2 junction connectors are reconnected.
Standard Resistance:
Text in Illustration
Result:
C -- REPLACE CAN NO. 2 JUNCTION CONNECTOR
B -- REPLACE BRAKE ACTUATOR (SKID CONTROL ECU) Removal
A -- Continue to next step.
23. CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU)
(a) Reconnect the skid control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
Result:
C -- REPLACE BRAKE ACTUATOR (SKID CONTROL ECU) Removal
B -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY (NAVIGATION ECU) Removal
A -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY (NAVIGATION ECU) Removal
24. CHECK FOR SHORT IN CAN BUS WIRE (ECM)
(a) Disconnect the ECM connector.
Text in Illustration
(b) Disconnect the CAN No. 1 junction connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN NO. 1 J/C - ECM)
OK -- REPLACE ECM Removal
25. CHECK FOR SHORT IN CAN BUS WIRES (CERTIFICATION ECU)
(a) Disconnect the certification ECU connector.
Text in Illustration
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN NO. 2 J/C - CERTIFICATION ECU)
OK -- REPLACE SMART KEY ECU ASSEMBLY (CERTIFICATION ECU)