3M Opticom, Руководство по установке

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Vehicle Equipment Installation Instructions 21
7 Troubleshooting
Table 7-1 shows the symptoms of 3M™
Opticom™ GPS Priority Control System Vehicle
Equipment installation problems. The table also
shows the possible causes of those problems and
suggests solutions to correct them.
Table 7-2 shows the expected voltages at various
wiring terminals.
Table 7-1. Troubleshooting Symptoms, Possible Causes, and Solutions
Symptom Possible Cause Solution
Wiring incorrect. Check wiring. Verify that control
unit is getting 12 VDC.
Remote activation line not active. Verify that 12 VDC is being applied
to blue wire of vehicle interface
harness.
Fuse/s blown Replace fuses with 2A/250V 3AG
SLO-BLO.
Vehicle control unit POWER LED
will not light.
Vehicle control unit failed. Return unit to 3M for service.
Times in log are incorrect. Time localization not set, or set
incorrectly. Set correct offset for your area.
Initial start-up may take up to 15
minutes. Wait 15 minutes.
Radio/GPS unit’s view of sky is
obstructed. Move unit or remove obstructions.
Garage re-radiator not operating. Repair or replace re-radiator.
RF interference. Turn off vehicle control unit for 15
minutes, then try again.
Incorrect wiring. Check wiring at both ends of
radio/GPS cable.
Radio/GPS cable connector (terminal
block) plugged in backwards. Plug in terminal block correctly.
Radio/GPS unit failed. Return unit to 3M for service.
Radio/GPS antenna failed. Return unit to 3M for service.
Vehicle control unit failed. Return unit to 3M for service.
GPS will not acquire.
(GPS LED is amber.)
No power to GPS receiver. Check voltage between brown (+)
and brown/white (–) wires at both
ends. It should be about 8.3 VDC.