54
ANTI-LOCK BRAKE SYSTEM (ABS)
CHAS
2
Fail-safe
relay
red
ECU
white
green
red
red
Front
solenoid
Rear
solenoid
Continuity
between:
1 –
3
1 –
7
4 –
6
5 –
Fail-safe
relay
red
Front
solenoid
Rear
solenoid
red
red
[C-5-5] Malfunction code “21” (Solenoid circuit is disconnected or short-circuited.)
Check the following procedures.
1) Solenoid connector
Check if the solenoid connector terminal is disconnected. (Refer to ABS CONNECTOR LOCATION
CHART)
2) HU solenoid
Check the continuity of solenoid (front or rear wheel)
[D-5]
Check the insulation condition of all solenoid terminals and negative (–) terminal of battery.
[D-5]
3) ABS harness
Check the continuity in the solenoid circuit (See the figure below).
Check the insulation condition of battery’s negative (–) terminal and solenoid circuit.
[C-5-6] Malfunction code “31” (Disconnection is detected between the system of fail-safe relay and
solenoid.)
Check the following procedures.
1) ABS motor fuse
Check if the ABS motor fuse beside the battery is blown.
2) Solenoid connector
Check if the solenoid connector located in the side cover at right hand comes off or whether there is insuf-
ficient connection. (Refer to ABS CONNECTOR LOCATION CHART)
3) ABS harness
Check the continuity of white / brown leads between the ECU and fail-safe relay. (Refer to ABS CIRCUIT
DIAGRAM)
ECU coupler terminal (white / brown) is disconnected.
[D-1]
Check the continuity of red leads between 1 and 2 , 1 and 3 of solenoid circuit.
4) Fail-safe relay
Check if the fail-safe relay operates correctly.
[D-2]
