Code Definition

P0332 — Knock Sensor 2 Circuit Low Input (Bank 2)

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0332

P0332 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0332 is stored, the module has detected a signal or supply voltage lower than the expected operating range; a bank-specific fault, meaning it applies only to one cylinder bank of a multi-bank engine; and a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0332 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The fault code P0332 is set when the Engine Control Module (ECM) identifies an abnormally low voltage signal from the Knock Sensor 2 in Bank 2. This condition usually indicates that the voltage signal received is below the expected range, which might be caused by a short to ground in the sensor circuit. The knock sensor plays a vital role in detecting engine knocking or pinging, essential for preventing potential engine damage. An incorrect signal can adversely affect the ECM's ability to correctly manage engine timing and operation.

Quick Facts