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GX 470
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Engine Control System - System And Circuit Testing, On-Vehicle Inspection, Removal, Inspection, Installation
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Knock Sensor, Intake Manifold
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Inspection
Knock Sensor, Intake Manifold: Inspection
INSPECT KNOCK SENSOR
Check the resistance.
Fig 1: Measuring Resistance Between Terminals Using Ohmmeter
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Using an ohmmeter, measure the resistance between the terminals.
Standard resistance
RESISTANCE SPECIFICATION
Tester Connection
Specified Condition
1 (Ground) - 2 (Output)
120 to 280 kΩ at 20°C (68°F)
If the result is not as specified, replace the knock sensor.