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Home >> Lexus >> 2012 >> CT 200h L4-1.8L (2ZR-FXE) Hybrid >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Component Tests and General Diagnostics >> Check CAN Bus Lines For Short Circuit >> Part 2
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Part 2





NETWORKING: CAN COMMUNICATION SYSTEM: Check CAN Bus Lines for Short Circuit
- Check CAN Bus Lines for Short Circuit (Continued)

6. CHECK FOR SHORT IN CAN BUS LINES (CAN NO. 2 J/C - YAW RATE AND ACCELERATION SENSOR)

(a) Disconnect the wire harness connector from the CAN No. 2 junction connector front side.

(b) Disconnect the yaw rate and acceleration sensor connector.

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





Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (CAN NO. 2 J/C - YAW RATE AND ACCELERATION SENSOR)
OK -- Continue to next step.

7. CHECK FOR SHORT IN CAN BUS LINES (CAN NO. 2 J/C - STEERING ANGLE SENSOR)

(a) Disconnect the steering angle sensor connector.

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





Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (CAN NO. 2 J/C - STEERING ANGLE SENSOR)
OK -- Continue to next step.

8. CHECK FOR SHORT IN CAN BUS LINES (CAN NO. 2 J/C - AIRBAG SENSOR ASSEMBLY)

(a) Disconnect the airbag sensor assembly connector.

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





Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (CAN NO. 2 J/C - AIRBAG SENSOR ASSEMBLY)
OK -- Continue to next step.

9. CHECK FOR SHORT IN CAN BUS LINES (CAN NO. 2 J/C - CERTIFICATION ECU)

(a) Disconnect the certification ECU (smart key ECU assembly) connector.

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





Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (CAN NO. 2 J/C - CERTIFICATION ECU)
OK -- Continue to next step.

10. CHECK FOR SHORT IN CAN BUS LINES (CAN NO. 2 J/C)

(a) Reconnect the wire harness connector to the CAN No. 2 junction connector front side and rear side.

(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 line connected ECUs (ECM and combination meter assembly), CAN No. 1 junction connector, CAN No. 2 junction connector and CAN No. 3 junction connector are reconnected.
* The resistance must be measured after the CAN No. 2 junction connector branch line connected ECU and sensor connectors are disconnected.

NG -- REPLACE CAN NO. 2 JUNCTION CONNECTOR
OK -- Continue to next step.
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