Honda 1986 GoldWing GL1200A Manual page 85

Input/Output Voltage Inspection
Disconnect the throttle sensor coupler from the coupler
holder. Connect the inspection adapter between the sen-
sor couplers.
With the ignition switch ON, measure the input voltage
between the red
(+)
and green (-) adapter leads.
Input voltage: 4.75- 5.25 V
If the voltage is incorrect, check the wiring harness and
ECU.
If Input voltage is not present, check for continuity bet-
ween the red adapter lead and the No. 29 ECU coupler
terminal.
If there is continuity, measure the voltage between the
No. 1-2 ECU coupler terminals. If the voltage Is OK, in-
stall a new ECU.
INSPECTION ADAPTER
\
DIGITAl. CIRCUIT TESTER
With the ignition switch ON, measure the output voltage
between the white (+) and green
(-I
adapter leads while
gradually opening the throttle.
Replace the sensor if the voltage does not rise smoothly
as the throttle is opened.
Loosen the Idle adjustment screw and insert a 2.9 mm
(0.11 in} inspection gauge between the throttle arm
and throttle stop screw.
Set the tester in the 2V range and measure the voltage
with the inspection gauge left in place
Output voltage: 0.475- 0.495 V
NOTES:
• Do not loosen the stop screw lock nut.
• Use only a 2.9 mm (0.11 in) inspection gauge.
(cont'd)
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