P0331: Knock Sensor 2 Circuit Range/Performance (Bank 2)
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P0331 - KNOCK SENSOR 2 CIRCUIT RANGE/PERFORMANCE (BANK 2)
| Description: | The knock sensor detects vibrations upon increase and decrease in engine RPM. The knock sensor generates a voltage based on this vibration. If the voltage goes outside a calibrated level, a DTC is set. | ||
| Possible Causes: |
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| Diagnostic Aids: | A knock sensor voltage greater than 0.5 volt with the key ON and engine OFF indicates a hard fault. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DG: KNOCK SENSOR Step 1. | ||