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BE–48
TROUBLE-SHOOTING
When there is an open wire or a short in the collision sensor of
the impact-detecting system, a warning buzzer provided in
the ITC ECU is set off, emitting a continuous sound for five
seconds.
NOTE:
•
In the case of an open wire with the ignition switch
turned on, if the open wire state continues to exist for
200 ms or more, the buzzer is set off. The impact-de-
tecting function alone will not function, until the open
wire state is eliminated.
•
In the case of short circuit with the ignition switch
turned on, if the short continues to exist for 2 seconds
or more, the buzzer is set off. The impact-detecting
function alone will not function, until the short circuit
state is eliminated.
Operation checking method by shorting terminal T (test
terminal)
The operations of the following systems can be checked by
connecting the test terminal provided at the check connector
to the earth terminal with a jump wire.
•
Vehicle speed sensor
•
Room lamp system
•
Hazard lamp system
(1) Set the switch for the room lamp to the door position in
which the switch is interlocked with the door
opening/closing.
(2) Warm up the engine. Drive the vehicle at a speed of
15 km or more.
(3) Stop the vehicle.
NOTE:
•
Apply the parking brake. In the case of automatic trans-
mission-equipped vehicles, move the shift lever to the
P range.
(4) Connect the test terminal for ITC to the earth terminal
with a jump wire, as shown in the figure.
NOTE:
•
After the vehicle has stopped, do not turn off the igni-
tion switch. Keep the engine idling.
Buzzer
OFF
DOOR
ON
Diagnosis connector
ABS
ECU
IMB
IG
T
T
W
ITC
E
SIO
T
Jump wire
ECU
JBE00145-04011
JBE00146-04013
JBE00147-04014
REV
VF
JBE00148-04015
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