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Home >> Toyota Truck >> 2011 >> 4 Runner 2WD V6-4.0L (1GR-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Component Tests and General Diagnostics >> Short to B+ in CAN Bus Line >> Part 2

Part 2





NETWORKING: CAN COMMUNICATION SYSTEM: Short to B+ in CAN Bus Line
- Short to B+ in CAN Bus Line - Continued

Text in Illustration





NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO YAW RATE SENSOR ASSEMBLY (CANH, CANL)

OK -- REPLACE YAW RATE SENSOR ASSEMBLY Removal

34. CONNECT CONNECTOR

(a) Reconnect the F60 No. 3 junction connector connector.

NEXT -- Continue to next step.

35. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (ECM)

(a) Disconnect the F50 ECM connector.





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

Standard Resistance:

for 1GR-FE





for 2TR-FE





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Result





C -- REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (CANH, CANL)

B -- REPLACE ECM Removal

A -- REPLACE ECM Removal

36. CONNECT CONNECTOR

(a) Reconnect the F60 No. 3 junction connector connector.

NEXT -- Continue to next step.

37. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 4 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

(a) Disconnect the G13 No. 4 junction connector connector.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)
OK -- Continue to next step.

38. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 4 JUNCTION CONNECTOR SIDE)

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





Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR
OK -- Continue to next step.

39. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 4 JUNCTION CONNECTOR - NAVIGATION RECEIVER)

(a) Disconnect the G14 No. 4 junction connector connector.





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

Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR

OK -- REPAIR OR REPLACE NO. 4 JUNCTION CONNECTOR

40. CONNECT CONNECTOR

(a) Reconnect the G13 and G14 No. 4 junction connector connectors.

NEXT -- Continue to next step.

41. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NAVIGATION RECEIVER ASSEMBLY)

(a) Disconnect the G20 navigation receiver 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 WIRE CONNECTED TO NAVIGATION RECEIVER ASSEMBLY (CANH, CANL)

OK -- REPLACE NAVIGATION RECEIVER ASSEMBLY Removal

42. CONNECT CONNECTOR

*1: w/o Navigation System

*2: w/ Navigation System

(a) Reconnect the F60 No. 3*1 junction connector connector.

(b) Reconnect the G13 No. 4*2 junction connector connector.

NEXT -- Continue to next step.

43. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - NO. 3 OR NO. 4 JUNCTION CONNECTOR)

(a) Disconnect the F59 No. 2 junction connector connector.





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

Standard Resistance:





Text in Illustration





Result





C -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

B -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)
A -- Continue to next step.

44. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - STABILIZER CONTROL ECU)

HINT
For vehicles without a kinetic dynamic suspension system, go to "Check for Short to B+ in CAN Bus Wire (No. 2 Junction Connector - Main Body ECU)".

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





Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR
OK -- Continue to next step.

45. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - MAIN BODY ECU)

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





Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR
OK -- Continue to next step.

46. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)

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





Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR
OK -- Continue to next step.

47. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - SPIRAL CABLE SUB-ASSEMBLY)

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





Standard Resistance:





Text in Illustration





NG -- CONNECT CONNECTOR

OK -- REPAIR OR REPLACE NO. 2 JUNCTION CONNECTOR

48. CONNECT CONNECTOR

(a) Reconnect the F59 No. 2 junction connector connector.

NEXT -- Continue to next step.

49. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (STABILIZER CONTROL ECU)

(a) Disconnect the F70 stabilizer control ECU connector.





(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 CONNECTED TO STABILIZER CONTROL ECU (CANH, CANL)

OK -- REPLACE STABILIZER CONTROL ECU Removal

50. CONNECT CONNECTOR

(a) Reconnect the F59 No. 2 junction connector connector.

NEXT -- Continue to next step.

51. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (MAIN BODY ECU)

(a) Disconnect the F9 main body ECU (multiplex network body ECU) 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 WIRE CONNECTED TO MAIN BODY ECU (CANH, CANL)

OK -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal

52. CONNECT CONNECTOR

(a) Reconnect the F59 No. 2 junction connector connector.

NEXT -- Continue to next step.

53. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (CENTER AIRBAG SENSOR ASSEMBLY)

(a) Disconnect the F33 center 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 WIRE CONNECTED TO CENTER AIRBAG SENSOR (CANH, CANL)

OK -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal

54. CONNECT CONNECTOR

(a) Reconnect the F59 No. 2 junction connector connector.

NEXT -- Continue to next step.

55. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (SPIRAL CABLE SUB-ASSEMBLY)

(a) Disconnect the F19 spiral cable sub-assembly (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 WIRE CONNECTED TO SPIRAL CABLE SUB-ASSEMBLY (CANH, CANL)

OK -- REPLACE SPIRAL CABLE SUB-ASSEMBLY Removal
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