Part 3
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U1002: Lost Communication with Gateway Module
U1002 - Lost Communication with Gateway Module
Continued
20. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 11 JUNCTION CONNECTOR - NO. 12 JUNCTION CONNECTOR)
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 11 JUNCTION CONNECTOR - NO. 12 JUNCTION CONNECTOR)
OK -- REPLACE NO. 11 JUNCTION CONNECTOR
21. CHECK FOR SHORT IN CAN BUS WIRES (NO. 12 JUNCTION CONNECTOR SIDE)
(a) Disconnect the S59 No. 12 junction connector connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- CONNECT CONNECTOR
OK -- Continue to next step.
22. CHECK FOR SHORT IN CAN BUS WIRES (NO. 12 JUNCTION CONNECTOR - REAR POWER SEAT MODULE SWITCH)
NOTICE:
For vehicles without rear power seat control system (except 4-passanger with ottoman) or seat heater system and rear power seat control system (for 4-passanger with ottoman), go to "CHECK FOR SHORT IN CAN BUS WIRES (NO. 12 JUNCTION CONNECTOR - POWER TRUNK LID CONTROL ECU)".
(a) Measure the resistance according to the value(s) in the table below.
Result
NG -- CONNECT CONNECTOR
OK -- Continue to next step.
23. CHECK FOR SHORT IN CAN BUS WIRES (NO. 12 JUNCTION CONNECTOR - POWER TRUNK LID CONTROL ECU)
NOTICE:
For vehicles without power trunk lid system, go to "CHECK FOR SHORT IN CAN BUS WIRES (NO. 12 JUNCTION CONNECTOR - REAR JUNCTION BLOCK ECU)".
(a) Measure the resistance according to the value(s) in the table below.
Result
NG -- CONNECT CONNECTOR
OK -- Continue to next step.
24. CHECK FOR SHORT IN CAN BUS WIRES (NO. 12 JUNCTION CONNECTOR - REAR JUNCTION BLOCK ECU)
(a) Measure the resistance according to the value(s) in the table below.
Result
NG -- CONNECT CONNECTOR
OK -- REPAIR OR REPLACE NO. 12 JUNCTION CONNECTOR
25. CONNECT CONNECTOR
(a) Reconnect the S59 No. 12 junction connector connector.
NEXT -- Continue to next step.