Inspection Procedure
WARNING: This page is about a different car, the 2007 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DLC3
- Measure the resistance according to the value(s) in the table below.
Result
RESULT TABLETester connection Condition Specified value Result D3-6 (CANH) - D3-14 (CANL) - IG switch OFF
- Stop light switch OFF
108 to 132 Ω A D3-6 (CANH) - D3-14 (CANL) - IG switch OFF
- Stop light switch OFF
132 Ω or higher B NOTE: When the measured value is 132 Q or more and a CAN communication system diagnostic code is output, there may be a fault other than a disconnection of the DLC3 sub bus line. For that reason, troubleshooting should be performed again from "How to Proceed with Troubleshooting" after repairing the trouble area.B: REPAIR OR REPLACE DLC3 SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)
A: Go to next step
- CHECK CAN MAIN BUS LINE FOR DISCONNECTION (ECM - CAN J/C)
- Disconnect the connector (E8) from the ECM.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
RESISTANCE SPECIFICATION TABLETester connection Condition Specified value E8-33 (CANH) - E8-34 (CANL) - IG switch OFF
- Stop light switch OFF
108 to 132 Ω OK: REPLACE ECM
NG: Go to next step
- CHECK CAN J/C
- Disconnect the CAN main bus line connector (J39) from the CAN J/C.NOTE:
- Before disconnecting the connector, make a note of where it is connected.
- Reconnect the connector to its original position.
- Measure the resistance according to the value in the table below.
Standard resistance
RESISTANCE SPECIFICATION TABLEBetween the terminals where the connector (J51) was connected Condition Specified value CANH-CANL - IG switch OFF
- Stop light switch OFF
108 to 132 Ω Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE CAN J/C
OK: REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN J/C - ECM)
- Disconnect the CAN main bus line connector (J39) from the CAN J/C.