Honda BF50D Bedienungsanleitung Seite 451

3) EBT sensor signal line short-circuit inspection
• Turn the combination switch OFF. Disconnect the
ECM connector A . Check for continuity between
9
the EBT sensor 2P connector
side No.1 terminal (Red/White) and the engine
ground.
EBT SENSOR 2P CONNECTOR
MAIN WIRE HARNESS SIDE
17
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Repair short in the main wire harness
between the ECM and the EBT sensor.
NO - Go to "4) EBT sensor GND line open-circuit
inspection."
4) EBT sensor GND line open-circuit inspection
• Connect the ECM connector A
continuity between the EBT sensor 2P connector
main wire harness side No.2 (Green/Red)
17
terminal and the engine ground.
EBT SENSOR 2P CONNECTOR
MAIN WIRE HARNESS SIDE
SG2
(Green/Red)
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Go to "5) EBT sensor inspection."
NO - Repair open in the main wire harness
between the ECM and the EBT sensor.
5) EBT sensor inspection
main wire harness
17
EBT SENSOR 2P CONNECTOR
EBT SENSOR SIDE
TE (Red/White)
. Check for
9
17
451
a. Disconnect the EBT sensor.
b. Measure the resistance between the EBT sensor
side No.1 terminal and No.2 terminal of the EBT
sensor 2P connector
17
17
TE SG2
AMBIENT TEMPERATURE
VIEWED FROM THE
TERMINAL SIDE
Does the measurement correspond to the ambient
temperature?
YES - Replace the ECM with a new one and
recheck.
NO - Replace the EBT sensor with a new one and
recheck.
.
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