DTC 1-4-3 Front Knock Sensor Signal

1-4-3 KNOCK SENSOR SIGNAL, FRONT

Condition(s) for DTCs
^ The DTC is recorded if the engine speed is at least 2970 rpm and a certain engine load is exceeded, or if the signal from either Knock Sensor (KS) to the ICM is less than 225 mV for 96 successive ignitions.

Substitute value
^ The ICM retards the timing to eliminate knock.

Fault source(s)
^ Open-circuit in signal or ground lead.
^ Signal lead short-circuited to ground.
^ Faulty sensor.

Fault symptom(s)
^ Impaired performance may result.