DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-562
Diagnostic Item 23: Diagnose the lines from the main bus line to the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
CAUTION
When servicing a CAN bus line, earth yourself by
touching a metal object such as an unpainted
water pipe. If you fail to do, a component
connected to the CAN bus line may be broken.
TROUBLE JUDGMENT
If the MUT-III cannot receive any signal from the
engine-ECU <M/T> or engine-A/T-ECU <A/T>, CAN
bus line connector(s) are broken or an open circuit
has occurred.
COMMENTS ON TROUBLE SYMPTOM
Connector(s), wiring harness in the CAN bus lines,
the engine-ECU <M/T> or engine-A/T-ECU <A/T>
may be defective.
ENGINE-ECU<M/T>
ENGINE·A/T-ECU<A/T>
COMBINATION
METER
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet