In cars, malfunctions and malfunctions of mechanisms are recorded by the control unit . scanner will help identify Prado 120 errors . You just need to know how the codes displayed on the device screen are deciphered. But modern devices do this automatically.
The Prado 120 diagnostic connector is located under the steering column.
How does a mechanic diagnose a P0016 code?
When diagnosing this error, the mechanic will do the following:
- Visually inspect the electrical wires and connector of the oil control solenoid valve, as well as the camshaft and crankshaft position sensors
- Checks the level, condition and viscosity of the engine oil
- Reads all stored data and error codes using an OBD-II scanner to determine when and under what circumstances the error occurred
- Clear error codes from the ECM and test drive the vehicle to see if the P0016 code appears again
- Commands the oil control solenoid valve to turn on and off to determine if the valve timing is changing
- If no problem is found, continue diagnosis following the procedure established by the vehicle manufacturer
Note : When diagnosing and eliminating this error, you must follow the vehicle manufacturer's recommendations. Failure to do so may result in severe engine damage and may result in hasty replacement of faulty components.
Selecting a scanner
There are many scanners that differ in functionality and price. An inexperienced driver may have dazzle in the eyes from such a choice. Therefore, let’s simplify the task and focus on three popular devices for diagnosing the Prado 120.
Car scanner Delphi DS150E
Delphi DS150E
Country : USA . Place of production China .
Price 6 thousand rubles .
Pros:
Good price-function ratio. The scanner software contains a database of hundreds of cars, both trucks and cars of all popular models . The connection plug here is standard OBD-ƖƖ . A good device for personal use.
ODB-II connector for Delphi DS150E scanner
Minuses:
Here we can say that the functionality is slightly limited, but this disadvantage is not compensated by the low price.
Autoscanner Launch CReader V+
Launch CReader V+
Country China
Price about 3500 rubles
Pros:
LCD display of the Launch CReader V+ scanner
Price. The device is equipped with a liquid crystal display , which makes it autonomous. Diagnostics do not require connection to a laptop or smartphone. Diagnostic data can be displayed in two formats to choose from - text or graph . Reads Prado 120 error codes at a good level.
Diagnostic data can be displayed in two formats - text or graph.
Minuses:
May not detect some protocols. Powered by a built-in battery , which discharges quickly in the cold.
Car scanner Delphi TCS CDP+USB+BlueTooth
Delphi TCS CDP+USB+BlueTooth
Country USA , made in China
Price 11 thousand rubles.
Pros:
Diagnostic interface: Autocom
The scanner is capable of working with different diagnostic interfaces : Autocom , Wow or Delphi in Windows 10. The software contains information about 4000 car models . In addition to reading errors, the device can calibrate sensors , program injectors and key fobs . There is also an on-board recorder function without using a computer, which allows you to identify many faults in electronic systems .
Diagnostic Interface: Wow
It is possible to reset the service interval and control all vehicle systems . At a relatively low price, the functionality is close to professional .
Diagnostic interface: Delphi
Minuses:
If the scanner is needed only to simply identify Prado 120 errors, then this is not the optimal choice.
Common mistakes when diagnosing code P0016
- Not clearing the ECM and test driving the vehicle to see if the P0016 code appears again before diagnosing the error.
- Failure to visually inspect electrical wires and the oil control solenoid valve connector, as well as the camshaft and crankshaft position sensors
- Failure to follow the diagnostic procedure established by the vehicle manufacturer
- Hastily replacing faulty components without performing a thorough check
What does it mean
When checking the memory of the control unit with a scanner or other equipment, a P0016 error may appear, the meaning of which is not known to all motorists.
Error P0016 indicates a mismatch in the position of two shafts, the crankshaft and the camshaft.
A similar code occurs in situations where the information from the camshaft and crankshaft do not match each other. This indicates deviations from the norm in the angular position indicators.
This relationship between the shafts is required by the control unit in order to determine whether the cylinders are ready to inject the air-fuel mixture from the injectors. Information from these controllers is also needed to determine gaps. If the control unit stops receiving data, it generates an error indicating a malfunction. In this case, fuel is supplied, but according to the principle of variable-synchronous double ignition. This cannot but affect the normal operation of the engine.
Practice shows that this error is mainly encountered by motorists whose cars are equipped with a chain drive of the gas distribution mechanism. The problem appears noticeably more often on cars with a belt drive. Such an error does not always have bright and obvious manifestations.
The error can occur in different engine operating modes. This is idling, driving under load or warming up. It all depends on what caused it.
You can partially understand the presence of problems with the shaft sensors by the symptoms that appear with such an error.
What repairs can fix the P0016 code?
- Clearing error codes from the ECM and test driving the vehicle to see if the P0016 code appears again
- Replacing camshaft position sensor “A” (bank 1)
- Repair or replace electrical wires or connector of oil control solenoid valve or camshaft position sensor
- Exhaust Camshaft Oil Control Solenoid Valve Replacement (Bank 1)
- Replacing the timing chain and chain guides
Formation conditions
An error cannot just appear. For its formation it is necessary to create appropriate conditions.
A fault code appears if the control pulse from the camshaft position sensor is not detected at a specified interval on each of the engine cylinders.
The check engine warning light on the dashboard only comes on after 3 ignition cycles in which this situation has been repeated.
If the error was random and the next 4 starts were without failure, the Check Engine light will automatically go out.
Diagnosis of error P0016
If you notice that this indicator periodically lights up on the dashboard, there is a possibility of problems with contacts, damaged insulation, or broken sensor wiring. Always pay attention to the symptoms, which can tell you about the presence of malfunctions.
Troubleshooting
Evidence that the system is working normally is a light that comes on when the ignition is turned on, which goes out after 2-3 seconds. If this does not happen, then in order to remove the ABS error on the Prado 120, first of all, check the serviceability of the fuse and the condition of the wheel sensors.
It often turns out that the contacts in the sensor connector have become oxidized and the wires connecting it have become frayed. There are also cases when this electronic component is forgotten to be turned on after replacing the brake pads or repairing the hub. Adhered dirt on the body causes the indication to appear.
If the ABS activation warning occurred after prolonged slipping, then there is no reason to worry. To bring the device back to normal, you need to brake sharply 1-2 times. This is normal operation for the anti-lock block.
Symptoms
There are several symptoms that are characteristic when error P0016 appears, indicating a mismatch in the position between the shafts.
This can be indirectly diagnosed by the following signs:
- The check engine light is on on the dashboard. In this case, the Check Engine light may come on and then go off. And this cycle constantly repeats.
- Problems occur when starting the engine. You have to turn the starter longer, the engine just doesn’t want to turn on.
- The power of the power plant drops for no apparent reason.
- The car engine behaves unstable.
- At idle they float and the engine may stall.
- In parallel with the drop in power, the level of fuel consumption increases.
Symptoms of an error such as P0016 may vary depending on the specific make and model of the car, as well as the causes of the problem.
No error appears without a reason.
From english:
Decoding the error P2757 from Lexus: System Too Lean Bank 1
Make:
Lexus
Code:
P2757
Definition:
System Too Lean Bank 1
Description:
The Fuel system is diagnosed by comparing the target air fuel ratio calculated by Control module with the actual air fuel ratio measured by sensor.Improper idling.Engine stalls.Poor driving performance.
Cause:
- Check any other DTC on display
- Check exhaust system
- Check air intake system
- Check fuel pressure
- Check fuel injector
- Check coolant temperature
- Check intake manifold pressure sensor
- Check intake air temperature sensor
Related Service Bulletins:
- View Bulletin 1
- View Bulletin 2
Replacing the ABS sensor
Touch sensors in accordance with the ABS scheme are installed on all wheels of the car.
Replacing a device located on any of the rear wheels on a Prado 120 if the check light and stabilization system come on:
- The machine is placed on a flat surface and the parking brake is activated. Wheels that will not lift are placed under wheels.
- Remove the negative terminal from the battery.
- The rear seats are removed, the plastic trim on the threshold is removed along with the rubber door seal.
- To get to the sensor connector, bend the clamps, pull back the plastic trim where the shock absorber is attached, and turn off the device.
- Using a jack, the car is raised 5 cm from the ground.
- Wooden safety supports are placed under the bottom, the nuts are unscrewed, and the wheel is removed.
- Unscrew the mounting bolt holding the sensor. If difficulties arise, use WD-40 lubricant. Helping with gentle rocking, the part is removed.
- Release the brackets on which the wires are attached. 2 of them are located on the arch, one on the shock absorber.
- Very carefully bend the anti-vibration pad under which the sensor wire passes, pull it out, removing the plug in the passenger compartment.
- The new device is being installed; some force is applied for this. When it is in place, tighten the bolt.
- Tighten the bolts of the wiring brackets.
- The wire is pushed into the interior and a plug is installed.
- The wiring is laid in such a way that the connector reaches the socket without tension. An overlay is glued, the surface of which is carefully smoothed.
- The wheel is put in place.
- The functionality of the new sensor is checked: a tester is connected to its connectors and actions are performed that correspond to the device diagnostic algorithm.
- Connect the socket and connector.
- Install the threshold trim, door seal and side trim. Put the seats in place.
It is recommended to turn on the ignition and start the engine before installing the trim elements. If the ABS lamp goes out after 3 seconds, operation continues.
