Technical description and interpretation of error P0810
If your OBD-II equipped vehicle has stored code P0810. This means that the powertrain control module (PCM) has detected a clutch position control error. This code applies exclusively to vehicles equipped with a manual transmission.
The PCM controls certain manual transmission functions. Gear shift position and clutch pedal position are among these functions. Some models also monitor the turbine input and output speeds to determine the amount of clutch slip.
The clutch is a mechanical coupling that connects the engine to the transmission. When the clutch master cylinder is depressed, hydraulic fluid is forced into the slave cylinder. The slave cylinder drives the clutch pressure plate. Allowing the engine to be switched on and off from the transmission if necessary.
The primary function of the clutch switch is to act as a safety feature to prevent the engine from starting if the transmission is unintentionally engaged. The PCM and other controllers also use input from the clutch switch for various engine control calculations. These include automatic braking functions, as well as for holding the car downhill.
If the PCM detects a malfunction in the clutch position control circuit or detects that the clutch pedal is not in the correct position for the current conditions, a P0810 code will be stored and the malfunction indicator lamp (MIL) will illuminate. It may take several ignition cycles (with failure) for the MIL to illuminate.
DTC P0810 sets when the PCM or TCM detects a malfunction in the clutch position control circuit. Or when the clutch pedal is in the wrong position for the current conditions.
The check engine light or transmission check light also comes on.
Toyota Corolla ICE error codes
Quite often, sensors report engine malfunctions, which can occur either as a result of natural wear and tear on internal parts or due to improper operation of the machine. Most often, owners of this model encounter the following error codes during diagnostics:
- P0011 – incorrect camshaft position, i.e., desynchronization of the shafts, which causes the valve timing in the CVVT system to change and the element gear to light up.
Such a problem can occur due to incorrect position of the contacts in the gas distribution system valve, contamination of the piston channel by the oil flow, or breakdown of the phase regulator. The CVVT system itself can also be damaged, but this is less common.
If the P0011 fault message starts to light up, you must first check the serviceability of the sensor, inspect it for absence of oxidation and correct connection.
Then you need to look at the condition of the phase sensor: it may be contaminated with a layer of carbon deposits due to the use of low-quality oil. Then you should check the VVT valve for operability and, if it breaks, install a new part, and also see if there is any mechanical damage to the camshaft gear, which could not fit correctly.
- 2196. Toyota Corolla, in which computer diagnostics has detected such an error code, may receive an excessively rich mixture (1 sensor in 1 row should be checked). When code 2196 appears, you should check the condition of the EFI relay, air intake system, injectors, check the pressure level in the fuel system, and also see if there is an open circuit or short circuit in the electrical circuit of the sensor itself.
- P2118. This error means that the engine throttle actuator is not functioning properly because the current values are outside the normal range. If the check engine light comes on and the diagnostic code shows this code, you should check the ETCS power supply circuit for an open, any fuses that may be blown, and the ECM system. The problem may also occur due to the car battery being discharged.
- P2103. The code indicates that there is too much current in the throttle actuator circuit, which is necessary to move the throttle valve. The test reveals that its value exceeds 10 A for 0.1 s or 7 A for 0.6 s.
To fix the problem with the P2103 signal, it may be necessary to check the circuit for a short circuit; in some cases, it is necessary to change the damper itself or the housing assembly.
- P0606. If such an error starts to appear, this indicates a malfunction in the engine control unit. The cause of the problem is the ingress of moisture, which causes corrosion of the duralumin body, or clogging of the drainage hose leading from the car stove. You can remove traces of corrosion using alcohol or alcohol-containing products manually; after drying, the light should go out.
Symptoms of malfunction
The main driver symptom of P0810 is the MIL (Malfunction Indicator Light) illumination. It is also called Check engine or simply “check light”.
They can also appear as:
- The “Check engine” warning light on the control panel will light up (the code will be stored in memory as a malfunction).
- Poor engine starting.
- In some cases, the engine may not start even if the clutch pedal is fully depressed.
- In rare cases, there may be no symptoms at all.
A stored P0810 code can cause various vehicle control, safety and traction functions to fail. For this reason, this error should be considered serious.
Actions to take when an error occurs
What to do if the check engine light or another system light comes on? If errors occur in the climate control, airbag, battery, actuator or internal combustion engine, a reset should be performed after diagnostics: for this you can use a scanner or perform electrical manipulations.
Resetting the error for a Corolla 150, Toyota Corolla E120 or another modification of any year of manufacture is carried out according to one algorithm: you can turn on the ignition, press the brake pedal several times, and then repeat the procedure with the ignition off.
When diagnosing an E150 or Corolla E120 model for errors with a scanner, a reset can be performed quickly with just a few button presses.
Reasons for the error
A P0810 code may mean that one or more of the following problems have occurred:
- Clutch position sensor malfunction.
- Incorrectly adjusted clutch switch.
- Short circuit, broken wiring or connectors in the clutch position sensor circuit.
- Poor electrical connection in the circuit.
- The fuse or fuse link has blown.
- A faulty PCM or other control module may also be a programming error.
What are some steps to troubleshoot P0810?
Diagnosing a P0810 code will require a diagnostic scan tool, a digital volt/ohm meter (DVOM), and a source of vehicle-specific diagnostic information.
You can use your vehicle information source to find the Technical Service Bulletin (TSB) that matches the year, make, and model of the vehicle; as well as engine size, stored codes, and detected symptoms. If you find it, it may provide useful diagnostic information.
Step 1
Use a scan tool (connected to the vehicle's diagnostic connector) to obtain all stored codes and associated freeze frame data. It is recommended to write down this information before clearing the codes and then test drive the vehicle until the PCM goes into Ready mode or the code is cleared.
