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.