DR ALL-TERRAIN Service Manual download pdf (Page 125)

100

101

FUEL SYSTEM (DFI) 3-61

Vehicle-down Sensor (Service Code 31)

•

Remove the vehicle-down sensor (see Vehicle-down

Sensor Removal).

○

Do not disconnect the sensor connector.

•

Connect a digital meter [A] to the connector [B] with nee-

dle adapter set [C].

Special Tool - Needle Adapter Set: 57001-1457

Vehicle-down Sensor Output Voltage

Connections to Sensor Connector

Meter (+) → Y/G lead [D]

Meter (–) → BR/BK lead [E]

•

Hold the sensor vertically.

•

Turn the ignition switch ON, and measure the output volt-

age with the connector joined.

○

Tilt the sensor 55∼ 75° or more [F] right or left, then hold

the sensor almost vertical with the arrow mark [G] pointed

up, and measure the output voltage.

Output Voltage at Sensor

Standard: with sensor tilted 55∼ 75° or more right or

left: 3.7 ∼ 4.4 V

with sensor arrow mark pointed up: 0.4 ∼

1.4 V

NOTE

○

If you need to test again, turn the ignition switch OFF,

and then ON.

•

Turn the ignition switch OFF.

If the output voltage is normal, check the wiring.

If the wiring is good, check the ECU for its ground and

power supply (see ECU Power Supply Inspection).

If the ground and power supply are good, replace the ECU

(see ECU Removal/Installation).

If the output voltage is out of the specified, replace the

vehicle-down sensor.

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DR ALL-TERRAIN Service Manual Page 125

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