Honda Motor BF40D Manual Del Usuario página 453

3) TP sensor signal line open-circuit inspection
a. Turn the combination switch OFF and disconnect
the ECM connector A
9
b. Check for continuity between the TP sensor 3P
connector main wire harness side No.2
2
(Red/Black) terminal and the ECM connector A
main wire harness side No.7 (Red/Black) terminal.
ECM CONNECTOR A
MAIN WIRE HARNESS SIDE
9
2
TP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
Is there continuity?
YES - Go to "4) TP sensor signal line short-circuit
inspection."
NO - Repair open in the main wire harness
between the ECM and the TP sensor.
4) TP sensor signal line short-circuit inspection
• Check for continuity between the TP sensor 3P
connector 2 main wire harness side No.2
(Red/Black) terminal and the engine ground.
TP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Repair short in the main wire harness
between the ECM and the TP sensor.
NO - Go to "5) TP sensor GND line open-circuit
inspection."
.
9
TH (Red/Black)
VIEWED FROM THE
TERMINAL SIDE
2
TH (Red/Black)
453
5) TP sensor GND line open-circuit inspection
• Connect the ECM connector A
continuity between the TP sensor 3P connector
main wire harness side No.3 (Green/Red) terminal
and the engine ground.
TP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
SG2
(Green/Red)
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Go to "6) TP sensor inspection."
NO - Repair open in the main wire harness
between the ECM and the TP sensor.
6) TP sensor inspection
• Measure the resistance between the TP sensor side
No.2 terminal and No.3 terminal of the TP sensor 3P
connector .
2
TP SENSOR 3P CONNECTOR
TP SENSOR SIDE
TH
VIEWED FROM THE TERMINAL SIDE
Are the measurements within 0 - 6k ? with the
throttle fully open and fully closed?
YES - Replace the ECM with a new one and
recheck.
NO - Replace the throttle body with a new one and
recheck.
. Check for
9
2
2
2
SG2
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