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4Runner TRD Pro
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Engine Control System - Service Information
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Knock Sensor
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Inspection [08/2015 - ]
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Procedure
Inspection [08/2015 - ]: Procedure
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INSPECT KNOCK SENSOR
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
1 - 2
20°C (68°F)
120 to 280 kΩ
If the result is not as specified, replace the knock sensor.