3-72 FUEL SYSTEM (DFI)
Vehicle-down Sensor (Service Code 31)
Vehicle-down Sensor Output Voltage Inspection
•
Remove the vehicle-down sensor (see Vehicle-down
Sensor Removal).
•
Connect the harness adapter [A] to the vehicle-down sen-
sor connectors as shown in the figure.
Special Tool - Measuring Adapter: 57001-1700
Main Harness [B]
Vehicle-down Sensor [C]
•
Connect a digital meter [D] to the harness adapter leads.
Vehicle-down Sensor Output Voltage
Connections to Adapter:
Digital Meter (+) → W (sensor Y/G) lead
Digital Meter (–) → BK (sensor BR/BK) lead
•
Hold the sensor vertically.
•
Measure the output voltage with the engine stopped, and
with the connector joined.
•
Turn the ignition switch ON.
•
Tilt the sensor 60
the sensor almost vertical with the arrow mark pointed up
[B], and measure the output voltage.
Output Voltage
Standard:
With sensor tilted 60
left: DC 0.65
With sensor arrow mark pointed up: DC
3.55
○
If you need to test again, turn the ignition OFF, and then
ON.
•
Turn the ignition switch OFF.
If the reading is out of the standard, replace the sensor.
70° or more [A] right or left, then hold
70° or more right or
1.35 V
4.45 V
NOTE
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