Main Throttle Sensor Resistance Inspection

• Turn the ignition switch to OFF.
• Measure the main throttle sensor resistance in the same way as input voltage inspection, note the following.

Disconnect the throttle sensor setting adapter [A] from the connector of the main harness side.

Special Tool - Throttle Sensor Setting Adapter: 57001 -1538

Connect the setting adapter [B] to the sensor connector only.

Connect a digital meter [A] to the setting adapter [B].

Main Throttle Sensor [C]

Main Throttle Sensor Resistance Connections to Adapter: W (sensor BL) lead ← → BK (sensor BR/BK) lead Standard: 4 6 kΩ

If the reading is out of the standard, replace the throttle body assy.

If the reading is within the standard, check the output voltage (see Main Throttle Sensor Output Voltage Inspection).