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
Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINALV
Caution:
wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
2. Remove air fuel ratio sensor (for bank 2
sensor 1)
(a) ...
Check mode procedure
HINT:
Intelligent tester only:
Compared to normal mode, check mode is more sensitive to
malfunctions. Therefore, check mode can detect the
malfunctions that cannot be detected by normal mode.
NOTICE:All the stored DTCs and freeze frame data are
erased if:
1) the ECM is changed fro ...
Oxygen (A/F) Sensor Pumping Current Circuit
HINT:
Although the DTC titles say oxygen sensor, these DTCs relate to the
Air-Fuel Ratio (A/F) sensor.
Sensor 1 refers to the sensor mounted in front of the Three-Way
Catalytic Converter (TWC) and
located near the engine assembly.
DESCRIPTION
Refer to DTC P2195 (See page ES-355 ...