Honda 1986 GoldWing GL1200A Manual page 48

Lights/Switches/Instruments
Troubleshooting
( c o n t ' d ) - - - - - - - - - - - - - - - - - - - -
Faulty 011 Pressure Gauge.
WARNING LAMP: Start engine. Check
that oil pressure warning lamp is OFF, then
stop engine
Off
VENT TUBE: Check oil pressure
sensor air vent tube for blockage
or pinching.
OK
On
Blocked
• Faulty engine lubncatlng system
(stop engine immediately).
• Clear air vent tube.
POWER TO METER: Measure voltage be-
tween SIISr
(+
I terminals of meter white
20P coupler and G/SI 1-) terminal of
meter white 13P coupler.
• Faulty meter.
• Short cIrcuit In BI/Br or G/SI wire
between meter and sensor couplers.
POWER TO SENSOR: Disconnect yellow
waterproof 3P coupler of oil pressure
sensor; connect inspection adapter
between couplers. Tum ignition
ON. Measure voltage between G
(+
I
and R (-) leads of adapter.
About
5 V
o
Volts
Abnormal
(Voltage)
About
5 V
• Open or short
cirCUit In SI/Sr or
G/BI wire
between meter
and sensor
couplers.
• Poor contact at
meter or left
fairing coupler.
o
Volts
• FaUlty meter
SENSOR SIGNAL: Measure voltage be-
tween
W(
+) and R( -) leads of inspection
adapter Voltage should be 0.7-1.3V.
o
Volts
SIGNAL WIRE TO METER: Check for con·
tinuity between BulY terminal of
meter white 20P coupler and white lead of
inspection adapter.
Normal
Voltage
2.5V±10%
1.75 V ±10%
1 4 V
±
10%
Abnormal
f-..:..:.::..:..:.;:..:...:.:=.:.....
Faulty oil pressure sensor.
MEASURE OIL PRESSURE: Remove oil
pressure switch (not the sensor) and con-
nect an oil pressure gauge. Start engine
and measure voltages between W (+) and
R (-) leads of inspection adapter at
pressures shown:
Oil Pressure
4.0 kg/cm 2
(57 psi)
2.0
kg/cm
2
(28 psi)
1.0 kg/cm 2 (14 psi)
No
Continuity
• Open circuit in
SuN wire of
harness.
• Poor contact at
left fairing coupler.
Continuity
• Faulty oil
pressure sensor.
Normal
8·4
• Faulty meter.