DTC P0327, P0328; Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) [12/2012 - ]: Description
A flat-type knock control sensor (non-resonant type) has a structure that can detect vibrations between approximately 5 kHz and 15 kHz.
The knock control sensor is fitted onto the engine block to detect engine knocking.
The knock control sensor contains a piezoelectric element which generates a voltage when it becomes deformed.
The voltage is generated when the engine block vibrates due to knocking. Any occurrence of engine knocking can be suppressed by delaying the ignition timing.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P0327 | Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) | The output voltage of the knock control sensor is below 0.5 V for 1 second or more (1 trip detection logic). |
|
Comes on | DTC stored | DTC for Mexico Models - Applies |
| P0328 | Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) | The output voltage of the knock control sensor is higher than 4.5 V for 1 second or more (1 trip detection logic). |
|
Comes on | DTC stored | DTC for Mexico Models - Applies |
HINT:
When DTC P0327 or P0328 is stored, the ECM enters fail-safe mode. During fail-safe mode, the ignition timing is delayed to its maximum retardation. Fail-safe mode continues until the ignition switch is turned off.