WIRING DIAGRAMS
Page 2D-18 90-855347R1 JANUARY 1999
Warning System Signals
NOTE: The warning system signals which includes audible and visual indicator involving
the horn and lights will identify the potential problems listed in the chart
Problem Horn Check
Engine
Light
Low Oil
Light
Over
Heat
Light
Water In
Fuel
Light
Engine Speed
Reduction Acti-
vated
(approx. 3000
RPM)
Power Up/System Check Single
Beep
Yes Yes Yes Yes No
Low Oil 4 Beep...
2 Minutes
Off
Yes No
No Oil Flow Continu-
ous Beep
Yes Yes Yes
(Limits to 3000
RPM)
Oil Pump Electrical
Failure
Yes Yes Yes
(Limits to 3000
RPM)
Over Heat Continu-
ous Beep
Yes Yes
(Limits to 3000
RPM)
Water In Fuel 4 Beep...
2 Minutes
Off
Yes
Over Speed Continu-
ous Beep
Yes
(Activated at 5800
RPM)
Coolant Sensor Failure No Yes
MAP Sensor Failure No Yes
Air Temperature Sensor
Failure
No Yes
Ignition Coil Failure No Yes
Injector Failure No Yes
Horn Failure N/A Yes No
Battery Voltage too high
(16V) or too low (11V) or
very low (9.5V)
No Yes Yes – If battery
voltage is less
than 10.4 V –
RPM is reduced
to 3000.
If voltage is 9.5V
or less, RPM is
reduced to idle.
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