PRECAUTIONS
ON HOW TO REPAIR THE CAN BUS LINES
PRECAUTIONS ON HOW TO REPAIR THE CAN BUS LINES
![](../../../img/54/AC204694AB00ENG.png)
- If the CAN bus line(s) are repaired, renew all the twisted
wires between the end connectors. If the wiring harness is
partially repaired, or only CAN_L
or CAN_H line is repaired, noise suppression is
deteriorated, causing a communication
error.
![](../../../img/54/AC203824AB00ENG.png)
- If the connector or wire on the main bus line or the sub-bus
wire is replaced, the
frayed end of the twisted wire should be within 10 cm from the
connector. If it exceeds 10 cm,
twist the wiring harness just like the original twisted wire. If
the frayed end exceeds 10 cm,
noise suppression is deteriorated, causing a communication
error.
![](../../../img/54/AC202856AC00ENG.png)
- If a sub-bus line is repaired, splice a new wire directly into
the main bus line.
If a new wire is spliced into the sub-bus line, which is
connected to another device, the CAN
communication will be disabled.
PRECAUTIONS ON HOW TO REPAIR THE TERMINATOR RESISTOR
If
one-side terminator resistor is broken, the CAN communication will
continue although
noise suppression is deteriorated. No diagnosis codes may be set even if
the terminator resistor
was broken. If a damage is found, replace the ECU which incorporates the
defective terminator
resistor.