DESCRIPTION
A short to B+ is suspected in the CAN bus wire when the resistance between terminals 6 (CANH) and 16 (BAT), or terminals 14 (CANL) and 16 (BAT) of the DLC3 is below 6 kΩ.
Symptom |
Trouble Area |
The resistance between terminals 6 (CANH) and 16 (BAT), or terminals 14 (CANL) and 16 (BAT) of the DLC3 is below 6 kΩ. |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
HINT: Operating the ignition switch, any switches, or any doors triggers related ECU and sensor communication with the CAN. This communication will cause the resistance value to change.
1 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (ECM MAIN BUS WIRE)
Standard resistance
REPLACE ECM
2 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NETWORK GATEWAY MAIN BUS WIRE)
Standard resistance
REPLACE NETWORK GATEWAY ECU
3 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (DLC3 BRANCH WIRE)
Standard resistance
4 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (JUNCTION CONNECTOR - NETWORK GATEWAY MAIN BUS WIRE)
Standard resistance
Result
5 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (JUNCTION CONNECTOR - ECM MAIN BUS WIRE)
Standard resistance
REPLACE WIRING HARNESS CONNECTOR (JUNCTION CONNECTOR)
6 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (JUNCTION CONNECTOR - CAN JUNCTION CONNECTOR MAIN BUS WIRE)
Standard resistance
7 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (SKID CONTROL ECU BRANCH WIRE)
Standard resistance
8 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (STEERING ANGLE SENSOR BRANCH WIRE)
Standard resistance
Result
REPLACE WIRING HARNESS CONNECTOR (JUNCTION CONNECTOR)
9 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (DISTANCE CONTROL ECU BRANCH WIRE)
Standard resistance
REPLACE WIRING HARNESS CONNECTOR (JUNCTION CONNECTOR)
10 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (CAN JUNCTION CONNECTOR - JUNCTION CONNECTOR MAIN BUS WIRE)
Standard resistance
11 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (CAN JUNCTION CONNECTOR - ECM MAIN BUS WIRE)
Standard resistance
12 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (YAW RATE SENSOR BRANCH WIRE)
Standard resistance
REPLACE WIRING HARNESS CONNECTOR (CAN JUNCTION CONNECTOR)
13 CHECK FOR SHORT TO B+ IN CAN BUS WIRE (SKID CONTROL ECU BRANCH WIRE)
Standard resistance
REPLACE ABS & TRACTION ACTUATOR ASSEMBLY
14 CHECK CHECK FOR TO B+ IN BUS WIRE (STEERING ANGLE SENSOR BRANCH WIRE)
Standard resistance
REPLACE STEERING ANGLE SENSOR
15 CHECK CHECK FOR TO B+ IN BUS WIRE (DISTANCE CONTROL ECU BRANCH WIRE)
Standard resistance
16 CHECK CHECK FOR TO B+ IN BUS WIRE (YAW RATE SENSOR BRANCH WIRE)
Standard resistance
REPLACE YAW RATE SENSOR
Terminals of ECU
1. CHECK DRIVER SIDE J/B ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
Disconnect the 1C, 1J, 1L, 1K, 1P, B6, B7 and B9 J/
B connectors.
Measure the voltage and resistance according to
the value(s) in the table below.
Standard
HINT:
If the result is not as specified ...
Manual Up / Down Function does not Operate on Rear RH Only
DESCRIPTION
If the manual UP/DOWN function does not operate, the power window motor, the
regulator switch or the
wire harness may be malfunctioning.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK WIRE HARNESS (POWER SOURCE)
Disconnect the P39 regulator switch connector.
Turn ...
How to proceed with troubleshooting
The intelligent tester can be used at steps 3, 7, 10, and 13.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
(a) Interview the customer to confirm the trouble.
3 DTC CHECK/CLEAR AND FREEZE FRAME DATA
4 PROBLEM SYMPTOM CONFIRMATION
5 PROBLEM SYMPTOM SIMULATION
6 SYMPTOM SI ...