Code P0325 refers to the knock sensor on block 1 engine. This basically tells you that the sensor is not sending the correct signals to the controller. This can happen for a variety of reasons, from bad wiring to a faulty sensor.
This diagnostic trouble code (DTC) is a generic transmission code, which means it applies to OBD-II equipped vehicles. Although the specific repair steps may vary depending on the make/model. Oddly enough, this code is more common on Honda, Acura, Nissan, Toyota and Infiniti vehicles.
You probably won't have any drivability problems when the P0325 code is active, but that doesn't mean you can ignore it. Read below to learn how to diagnose and fix this knock sensor trouble code before it causes further problems.
Knock sensor
What does P0325 mean?
The knock sensor in your engine tells you when the air/fuel mixture is not burning properly. It detects explosions, which are called knocks because of the noise. When detonation occurs, the engine does not receive full power. If this happens for too long, it can damage the engine.
Information sent to the engine control unit (ECU) from the knock sensor allows it to make adjustments. The ECU may change the timing or otherwise adjust the engine to prevent detonation. Typically the knock sensor is bolted to the engine block.
When the engine controller does not receive the correct information from the knock sensor, it causes trouble code P0325. This code specifically refers to the knock sensor on block 1 of the engine.
Read the article: what is bank 1 and bank 2.
The P0325 code may appear intermittently or the Check Engine light may remain on constantly.
. — , , .
| 2110 | 20:33, 26 51 |
| / 2110, 2115, 406 VSKS0110 VSKS0110 | 22:40, STODETALEY |
| ERA 550489 | 10:42, 22 «-… |
| 2110-12 ERA 550489 | 22:09, 24 |
| FCR2106618200680689/Francecar. Renault Logan, Duster, Sandero, Francecar FCR210661 Replacement of knock sensor Prior 16 valves , Renault Duster, Renault Logan… , 1 | 23:32, 24 |
| (LADA) 2004- | 18:51, KUZOVNOE.TOMSK |
| 406, 4216, . (18.3855) | 01:12, |
| ERA 550489 | 07:32, 20 |
| ERA 550489 | 20:32, |
| ( . -406; 2110 — 2112) 18-3855000-01 16421 | 04:20, 22 … |
| LADA ...: ; Car line 550489, 21123855020 \ LADA | 12:57, 21 Car line |
| ERA 550489 | 08:27, 15 Gabarit |
| , , | 11:24, 16 «» |
| / 2110, 2115, 406 VSKS0110 VSKS0110 | 21:32, AMX24 … |
| ERA 550489 550489 | 15:02, |
| / 2110, 2115, 406 VSKS0110 Startvolt | 12:07, 22 |
| / 2110, 2115, 406 VSKS0110 | 12:04, 21 Car line |
| ERA 550489 | 06:20, 20 |
| / 2110, 2115, 406 VSKS0110 VSKS0110 | 06:51, 1 Gabarit |
| 2110-12, ERA 550489 | 07:25, |
| 2110-12, : ERA 550489 | 03:29, 16 |
| / 2110, 2115, 406 VSKS0110 | 06:53, |
| 06:41, 22 | |
| ERA 550489 | 11:06, 7 AvtoSup |
| ERA 550489 | 16:22, 21 Boost24 |
| Francecar FCR210661 Renault 21/25/Clio/Espace/Kangoo/Laguna/Megane/Safrane/Twingo/Lada Largus FCR210661 , Renault 21, Renault Espace … , 1 | 12:59, 21 |
| 2110-12, Era 550489 | 09:26, 18 … |
| 2110-15, -406 () (50) | 22:26, 17 Autoclub02 |
| / 2110, 2115, 406 VSKS0110 | 21:15, 17 Autoclub02 |
| ERA 550489 | 08:21, 15 24 |
| 2110-15, -406 () (50) | 07:42, 21 MGM |
| 2110-12 Era .550489 | 01:15, — |
| 2110-12 Era .550489 | 22:54, —… |
| 2112-3855020 2110-12 Era. 550489 2112-3855020 | 08:06, —… |
| 2110, 2115, 406 (vs-ks 0110) . VSKS0110 | 07:05, —… |
| 2110-12, Era. 550489 | 04:00, —… |
| 2110, / 406 . 21123855020 | 09:26, —… |
| ERA 550489 | 09:25, CARakoom |
| / 2110, 2115, 406 VSKS0110 Startvolt VSKS0110 | 04:22, — … |
| 2110, / 406 18.3855 . 183855 | 03:39, —… |
| 2110-12 ERA 550489 | 10:51, 21 Jc-Market |
| 2110-12, | 15:11, 13 AutoPart02 |
| 8200680689 Valeo Largus 8200680689 Valeo , Renault Espace, Renault Twingo … | 14:01, 22 -PN1 — … |
| 2110-12 550489 | 07:13, 22 -PN1 — … |
| 2110, 2115, 406 (VS-KS 0110) VS-KS 0110 | 03:11, 22 -PN1 — … |
| 2110, / 406 2112-3855020 | 03:09, 22 -PN1 — … |
| 2110, / 406 18.3855 18.3855 | 03:07, 22 -PN1 — … |
| ( ) | 06:03, 17 |
| 405,406,4216, 2110,2112 () () | 10:22, 13 «… |
| Lada Largus (Renault SA S.) , Renault Clio, Renault Laguna ... | 10:20, 13 «… |
How to Diagnose P0325
You will need a diagnostic scanner or adapter.
- Check your vehicle's owner's manual for any specific tips on troubleshooting knock sensor problems. You can also check if there are any technical service bulletins related to this DTC. The repair for P0325 often depends on the specific vehicle model. Follow the manufacturer's instructions that you find before proceeding with the general diagnostics below.
- Use an OBD2 scanner to check for any other errors. You may see other codes related to the knock sensor, such as P0330. If you see codes related to other sensors, such as the mass air flow sensor (MAF) or oxygen sensors, this likely indicates a wiring problem.
- Read the freeze frame data related to the knock sensor. Check the conditions that were present when the code was installed. This can help you make an accurate diagnosis.
- Clear the codes and test drive your vehicle in an attempt to reproduce the trouble conditions. Make sure the knock sensor is sending a signal to the control unit. If not, use an OBD2 scanner to check the coolant temperature sensor readings.
- Visually inspect the wires around the knock sensor and wiring harness. Replace any wires that are damaged or corroded and make sure all connections are secure.
Checking DD yourself
The knock sensor is located between cylinders 2 and 3 on the radiator side directly on the engine block. Checking the knock sensor is a simple matter, especially if you have ever looked under the hood of the fourteenth.
Replacing the knock sensor VAZ 2114
- The key end is 13 for a single-pin DD (resonant) and 22 for a two-pin DD (broadband)
- Simple screwdriver
- Multimeter
How to check the knock sensor
The first thing to do is remove the DD. It’s easier to remove the single-pin one: don’t touch the ignition, turn it off and unscrew the sensor from the engine. The two-pin one is more complicated: we also don’t touch the ignition, but we also need to remove the negative from the battery. Then, remove the wires of the block, unscrew the DD fastening and remove it.
Second, we switched the multimeter to a voltmeter and set the limit to 200 MV. We connected it to the DD and carefully hit it with some piece of iron (the same screwdriver). When impacted, the voltage should jump; if there is no jump, the sensor is dead, go to the store for shopping.
When a two-pin DD is connected, its terminals cling to the multimeter, when a single-contact DD is connected, one contact and its body are clinging.
Third, we look at the wiring, as already mentioned, most often it’s a matter of frost, or broken contacts.
A simple plan on how to check the knock sensor in your garage with properly trained hands.
Opinions agree that a non-working DD should not be replaced with an analogue from the factory. You will buy a pig in a poke with a 1 in 10 chance that you will get a working one. For the fourteenth, DD from 406 engines for the Volga or a universal imported Bosch are perfect.
How to fix P0325?
After each repair step, clear all fault codes and test drive the vehicle to ensure the code returns. Since drivability issues are rarely associated with this code, an OBD2 scanner will be critical to detecting the problem.
- Replace any damaged wires that you find during diagnosis.
- If you find any problems with the coolant temperature readings, replace the temperature sensor. Incorrect temperature readings can lead to overheating and other serious engine problems.
- If you are sure there are no damaged wires or connections in your engine, replace the knock sensor.
- If the P0325 code still appears, take it to a mechanic for further diagnosis. In rare cases, this code may indicate a problem with the electrical connections or the engine ECU.
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| 2110 | 20:33, 26 51 |
| / 2110, 2115, 406 VSKS0110 VSKS0110 | 22:40, STODETALEY |
| ERA 550489 | 10:42, 22 «-… |
| 2110-12 ERA 550489 | 22:09, 24 |
| ERA 550489 | 07:32, 20 |
| ( . -406; 2110 — 2112) 18-3855000-01 16421 | 04:20, 22 … |
| ERA 550489 | 08:27, 15 Gabarit |
| / 2110, 2115, 406 VSKS0110 VSKS0110 | 21:32, AMX24 … |
| ERA 550489 550489 | 15:02, |
| / 2110, 2115, 406 VSKS0110 Startvolt | 12:07, 22 |
| / 2110, 2115, 406 VSKS0110 | 12:04, 21 Car line |
| ERA 550489 | 06:20, 20 |
| / 2110, 2115, 406 VSKS0110 VSKS0110 | 06:51, 1 Gabarit |
| / 2110, 2115, 406 VSKS0110 | 06:53, |
| ERA 550489 | 11:06, 7 AvtoSup |
| ERA 550489 | 16:22, 21 Boost24 |
| 2110-15, -406 () (50) | 22:26, 17 Autoclub02 |
| / 2110, 2115, 406 VSKS0110 | 21:15, 17 Autoclub02 |
| ERA 550489 | 08:21, 15 24 |
| 2110-15, -406 () (50) | 07:42, 21 MGM |
| 2110-12 Era .550489 | 01:15, — |
| 2110-12 Era .550489 | 22:54, —… |
| 2112-3855020 2110-12 Era. 550489 2112-3855020 | 08:06, —… |
| 2110, 2115, 406 (vs-ks 0110) . VSKS0110 | 07:05, —… |
| 2110, / 406 . 21123855020 | 09:26, —… |
| ERA 550489 | 09:25, CARakoom |
| / 2110, 2115, 406 VSKS0110 Startvolt VSKS0110 | 04:22, — … |
| 2110, / 406 18.3855 . 183855 | 03:39, —… |
| 2110-12 ERA 550489 | 10:51, 21 Jc-Market |
| 2110-12 550489 | 07:13, 22 -PN1 — … |
| 2110, 2115, 406 (VS-KS 0110) VS-KS 0110 | 03:11, 22 -PN1 — … |
| 2110, / 406 2112-3855020 | 03:09, 22 -PN1 — … |
| 2110, / 406 18.3855 18.3855 | 03:07, 22 -PN1 — … |
| 405,406,4216, 2110,2112 () () | 10:22, 13 «… |
| / 2110, 2115, 406 VSKS0110 VSKS0110 | 05:06, — |
| 2110-12 550489 | 03:46, — |
| 2110-12 ERA 550489 | 17:19, 20 -InsOil… |
| ERA; 550489; 2110-12 | 02:02, 9 45 |
| ERA 2110-12 #550489 | 20:55, — |
| 2110-12 | 05:51, YULSUN |
| 2110-12 ERA 550489 | 21:39, 22 -TODUX |
| / 2110, 2115, 406 VSKS0110 Startvolt VSKS0110 | 14:57, 22 100- |
| Era 550489 | 02:53, 21 54 |
| 2110-15 -406 | 19:48, Autoko - ... |
| / 2110, 2115, 406 vsks0110 . VSKS0110 | 09:15, — … |
| -2110 (18.3855) (. ) | 23:34, — … |
| / 2110, 2115, 406 VSKS0110 | 03:39, — … |
| / 2110, 2115, 406 VSKS0110 Startvolt VSKS0110 | 11:21, 22 reDAuto |
| 07:03, 22 — | |
| ERA 550489 | 09:06, 21 CAReFan |
Tips to Avoid P0325 in the Future
An improperly installed knock sensor is the most common cause of the P0325 code. Loosely connected wires can become loose over time due to engine vibration. Damaged or broken wires also often cause diagnostic trouble codes, not just P0325, but many other errors related to sensors on the engine.
Take extra time to check all wires any time you install or repair anything on your engine. Make sure the connections are secure and there are no objects on the wires that could cause damage or short circuits.
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Next Post Trouble P0101 - Mass Air Flow Sensor Range/Performance
On which cars is this problem most common?
The problem with code P0325 can occur on different machines, but there are always statistics on which brands this error occurs more often. Here is a list of some of them:
- Acura
- Chery (Chery Amulet)
- Chevrolet (Chevrolet Aveo, S10)
- Chrysler
- Citroen (Citroen C3, C4)
- Daihatsu
- Dodge (Dodge Magnum)
- Ford (Ford Mondeo, Focus)
- Honda (Honda Accord, Odyssey, Pilot, SRV, Fit, Civic, Element)
- Hyundai (Hyundai Accent, Santa Fe, Sonata, Elantra)
- Infiniti (Infiniti i30)
- Jeep
- Kia (Kia Karens, Magentis, Sorento, Spectra, Sportage)
- Lexus (Lexus gs300, rx300)
- Mazda
- Mitsubishi (Mitsubishi Galant, Lancer)
- Nissan (Nissan Bluebird Silphy, Quest, Pathfinder, Sunny, Serena, Cefiro)
- Opel (Opel Astra, Vectra, Zafira)
- Peugeot (Peugeot 207, 308)
- Renault (Renault Logan, Sandero)
- Saab
- Subaru (Subaru Impreza, Legacy)
- Toyota (Toyota Avensis, Camry, Corolla)
- VAZ 2109, 2110, 2112, 2114, 2115
- Lada Kalina, Largus
With fault code P0325, you can sometimes encounter other errors. The most common ones are: P0105, P0130, P0136, P0171, P0302, P0305, P0327, P0330, P0440, P0446, P0500, P0600, P0688, P1400, P1443, P1605, P1705, B1001, C0265, C210 0, U1000, U140E.
Prevention of breakdowns of electrical appliances
To prevent breakdowns of electrical circuits, you must follow a number of simple rules.
- Error 8 on VAZ 2114 (8 valves) - what it means, symptoms, solutions
- Periodically check the contact connectors for oxidation or overheating. Rust disrupts the passage of impulses, which can be read by instruments as damage to the unit.
- Once a year, treat contacts with special oils. Lubricants prevent moisture from entering metals, which prolongs their service life.
- Replace dry wires in a timely manner. Cracked insulation can cause a short circuit.
