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3-30 FUEL SYSTEM (DFI)
Throttle Sensor (Service Code/Character-11/tPS)
Output Voltage Inspection
•
Measure the output voltage at the ECU in the same way
as input voltage inspection. Note the following.
Digital Voltmeter [A]
Connector [B]
Special Tool - Needle Adapter Set: 57001-1457
Throttle S ensor Output Voltage
Connections to ECU
Meter (+) → G/W lead (terminal 34)
Meter (–) → BK/W lead (terminal 8)
•
Start the engine.
•
Check idle s peed to ensure throttle opening is correct.
Idle Speed
Standard: 1 300 ±100 r/min (rpm)
•
Measure the sensor output voltage with the idle speed.
Output Voltage at ECU
Standard: 1.08 ∼ 1.18 V DC (at idle throttle opening)
CAUTION
Never drop the throttle sensor can especially on a
hard surface. A shock to the sensor can damage it.
If the output voltage is within the standard range, check
the ECU for a good ground, and power supply (see ECU
Power Supply Inspection). If the ground and power sup-
ply are good, replace the ECU.
If the output voltage is far out of the standard range (e.g.
when the wiring is open, the reading is 0 V), check the
output voltage at the sensor connector.