2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 477Get this manual
METERSWITCHES ENGINE OIL PRESSURE INDICATOR Fit the safety lanyard clip to the base of the engine stop switchMeasure the voltage between the Whiteblue wire terminal (+) of the ECM 26P gray connector and ground ()There should be approximately VIf there is no voltage, check an open circuit in the Whiteblue wireWhiteblue ECM 26P GRAY CONNECTOR (viewed from the terminal side)
Ground the Whiteblue wire terminal with jumper wireThe warning light and oil pressure indicator should blink and the warning buzzer should beepIf the warning light and indicator do not blink and the buzzer does not beep, replace the combination meter
ARX1200T3N3 shown:
WARNING LIGHT
OIL PRESSURE INDICATOR PGM-FI INDICATOR Fit the safety lanyard clip to the base of the engine stop switchMeasure the voltage between the Whitered wire terminal (+) of the ECM 26P gray connector and ground ()There should be approximately VIf there is no voltage, check an open circuit in the Whitered wireECM 26P GRAY CONNECTOR (viewed from the terminal side)