PowertrainP1321
CautionSeverity: Caution - get it checked when you can
Knock sensor 3 (G198): signal too small
Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions
1What it means in plain English
The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.
2Common causes
- Sensor or actuator fault
- Wiring or connector fault
- Vacuum or intake leak
- Fuel or ignition problem
- Control module fault
3Can I drive?
Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 20
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P1321 | No description available | Powertrain |
| BYD | P1321 | No. 034 battery voltage sampling circuit fault Brand | Powertrain |
| Chery | P1321 | Knock Sensor 3 (G198): Signal too Small Brand | Powertrain |
| Daewoo | P1321 | Knock Sensor 3 Circ. Low Input Brand | Powertrain |
| DFFS | P1321 | Battery management system (BMS) current signal is invalid Brand | Powertrain |
| DFXK | P1321 | Knock Sensor 3 (G198): Signal too Small Brand | Powertrain |
| EOBD | P1321 | Klopni senzor valj 5-6: Min Brand | Powertrain |
| Geely | P1321 | Knock Sensor 3 (G198): Signal too Small Brand | Powertrain |
| GM | P1321 | Knock Sensor 3 Circ. Low Input Brand | Powertrain |
| Holden | P1321 | Crankshaft Position Reluctor Ring Performance Brand | Powertrain |
| Honda | P1321 | No description available | Powertrain |
| Hyundai | P1321 | No description available | Powertrain |
| Isuzu | P1321 | No description available | Powertrain |
| Land Rover | P1321 | Cylinder 9 high to low side is short Brand | Powertrain |
| Opel | P1321 | Knock Sensor 3 Circ. Low Input Brand | Powertrain |
| Peugeot | P1321 | No description available | Powertrain |
| Saab | P1321 | Knock Sensor 3 Circ. Low Input Brand | Powertrain |
| Suzuki | P1321 | ENG A-STOP Battery Current Sensor 'A' Circuit Low Brand | Powertrain |
| Tata | P1321 | Misfire Fault Detected On Cylinder 1 - Gas Mode Brand | Powertrain |
| Volkswagen | P1321 | Knock sensor 3 (G198): signal too small Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Related codes
Browse Pxxx codes or P132xx codes.