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Home >> Toyota >> 2011 >> Yaris L4-1.5L (1NZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Component Tests and General Diagnostics >> Check CAN Bus Line For Short to +B >> Part 2
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Part 2





CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: Check CAN Bus Line for Short to +B
- Check CAN Bus Line for Short to +B - Continued

16. CHECK CAN BUS LINE FOR SHORT TO +B (D-CAN J/C - STEERING SENSOR)

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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





NG -- CHECK CAN BUS LINE FOR SHORT TO +B (STEERING SENSOR BRANCH WIRE)
OK -- Continue to next step.

17. CHECK CAN BUS LINE FOR SHORT TO +B (D-CAN J/C - AIR CONDITIONING AMPLIFIER)

HINT
For vehicles without air conditioning or PTC heater, go to step 18.

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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





NG -- CHECK CAN BUS LINE FOR SHORT TO +B (AIR CONDITIONING AMPLIFIER BRANCH WIRE)
OK -- Continue to next step.

18. CHECK CAN BUS LINE FOR SHORT TO +B (D-CAN J/C - CENTER AIRBAG SENSOR ASSEMBLY)

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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





NG -- CHECK CAN BUS LINE FOR SHORT TO +B (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE)

OK -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (D-CAN J/C - P-CAN J/C)

19. CHECK CAN BUS LINE FOR SHORT TO +B (ECM MAIN WIRE)

(a) Disconnect the A21 ECM connector.





Text in Illustration





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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (CAN-H, CAN-L)

OK -- REPLACE ECM Removal

20. CHECK CAN BUS LINE FOR SHORT TO +B (BRAKE ACTUATOR (SKID CONTROL ECU) BRANCH WIRE)

(a) for Hatchback:





(1) Disconnect the A15 brake actuator (skid control ECU) connector.

Text in Illustration





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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





(b) for Sedan:





(1) Disconnect the A15 brake actuator (skid control ECU) connector.

Text in Illustration





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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO BRAKE ACTUATOR (SKID CONTROL ECU) (CAN-H, CAN-L)

OK -- REPLACE BRAKE ACTUATOR (SKID CONTROL ECU) Removal

21. CHECK CAN BUS LINE FOR SHORT TO +B (ABS AND TRACTION ACTUATOR (SKID CONTROL ECU) BRANCH WIRE)

(a) Disconnect the A30 ABS and traction actuator (skid control ECU) connector.





Text in Illustration





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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO ABS AND TRACTION ACTUATOR (SKID CONTROL ECU) (CAN-H, CAN-L)

OK -- REPLACE ABS AND TRACTION ACTUATOR (SKID CONTROL ECU) Removal

22. CHECK CAN BUS LINE FOR SHORT TO +B (STEERING SENSOR BRANCH WIRE)

(a) Disconnect the D80 steering sensor connector.





Text in Illustration





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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO STEERING SENSOR (CAN-H, CAN-L)

OK -- REPLACE STEERING SENSOR Removal

23. CHECK CAN BUS LINE FOR SHORT TO +B (AIR CONDITIONING AMPLIFIER BRANCH WIRE)

(a) Disconnect the E8 air conditioning amplifier connector.





Text in Illustration





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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO AIR CONDITIONING AMPLIFIER (CAN-H, CAN-L)

OK -- REPLACE AIR CONDITIONING AMPLIFIER Removal

24. CHECK CAN BUS LINE FOR SHORT TO +B (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE)

(a) Disconnect the D16 center airbag sensor assembly connector.





Text in Illustration





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





HINT
The resistance must be measured after the D41 D-CAN junction connector is disconnected.

Standard Resistance:





Text in Illustration





Result





C -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CENTER AIRBAG SENSOR ASSEMBLY (CAN-H, CAN-L)

B -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal

A -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal
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