VehiCROSS 4WD V6-3.5L (1999)
Knock Sensor: Testing and Inspection
Knock Sensor Diagnosis
The Tech 2 has two data displays available for diagnosing the knock sensor (KS) system. The two displays are described as follows:
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"Knock Retard" indicates the number of degrees that the spark timing is being retarded due to a knock condition.
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"KS Noise Channel" indicates the current voltage level being monitored on the noise channel.
DTCs P0325 and P0327 are designed to diagnose the KS module, the knock sensor, and the related wiring. The problems encountered with the KS
system should set a DTC. However, if no DTC was set but the KS system is suspect because of a detonation complaint, refer to Detonation/Spark Knock
in Symptoms.See: Computers and Control Systems/Testing and Inspection/Symptom Related Diagnostic Procedures/Detonation - Pings, Spark Knock
