Why do errors P1604 and P1605 appear?
On Toyota Prado 150, error P1604 is detected using a diagnostic tool. This classification code stands for "Startup Failure". An inscription with a code appears on the device when the engine does not want to start, or the process takes a long time. The crankshaft cranking frequency at this moment is low, or the internal combustion engine (ICE) stalls immediately.
Causes of error P1604 on Prado 150:
- battery damage or discharge;
- problems with the ignition switch or start/stop system;
- use of low quality fuel;
- problems with the anti-theft system;
- internal combustion engine malfunction;
- clogged filter affecting the startup process;
- breakdown of injectors or oxygen sensors.
The code is also logged if the vehicle runs out of fuel.
Difficult starting of a diesel engine causes error P1605 on the Toyota Prado 150, which means uneven idle. The malfunction occurs as a result of the crankshaft speed decreasing below the minimum level. When diagnosing this problem, there should not be a single liter of fuel in the car’s tank, as an error can be detected due to this.
The most common indicators
Fuel problems
This error has code value B 1206. Errors, according to the comments of many users, can occur for various reasons. Often this value is shown on the display during mechanical shocks to the car, as well as in the event of excessive fuel consumption associated with engine breakdowns. Despite the prevalence of this problem, if the treasured numbers are discovered, it is necessary to contact specialists who will conduct a full diagnosis and identify faults.
Indicator “low efficiency of catalysts”
If the numbers P0420 appear, these are error codes indicating insufficient efficiency of the catalyst system.
If the problems are not corrected in a timely manner, you will have to spend considerable effort and money on restoring the Toyota Camry automobile unit.
It’s bad if the resource is exhausted, but the problem can be solved: contact a specialized service, where you (or rather, your car) will be helped and assisted in finding problems.
Error 1604
This situation (referred to as P1604) indicates the presence of several (or one) unsuccessful attempts to start the car engine. The solution to the problem depends on the reason why the launch failed. If this is an incorrect start or mechanical action, it is worth trying again; if it is frosty or cold, reheat the unit. If the reason is unclear, only a qualified technician can provide proper assistance in solving this problem. The erroneous parameter P1604 is common, but this does not mean that it can be ignored.
Error value A799
This parameter can be deciphered in different ways, depending on the nature of the malfunction. This may indicate a malfunction of several elements or exceeding the course speed. Errors 799 are less common than other faults, but nevertheless they do occur. The first action that the driver must take is to understand the cause of the problem in order to ensure the stability of all vehicle systems. A competent approach to solving the problem will ensure your peace of mind and constant comfort.
Erroneous values are generated as Check VSC System for Toyota Camry. With timely detection of errors and quick actions in the right direction, you can achieve amazing results and extend the life of the machine.
Crankshaft faults
The internal combustion engine will not start if the crankshaft speed is insufficient, which occurs for a number of reasons:
- malfunction of launch and landing (does not scroll);
- immobilizer failure (does not turn);
- battery malfunction (low cranking frequency);
- problems with the starter (low cranking speed).
Malfunctions in the crankshaft are very difficult to eliminate on your own. If the problem has been diagnosed, you need to contact the Prado service center in the city for help.
The most common indicators
Fuel problems
This error has code value B 1206. Errors, according to the comments of many users, can occur for various reasons. Often this value is shown on the display during mechanical shocks to the car, as well as in the event of excessive fuel consumption associated with engine breakdowns. Despite the prevalence of this problem, if the treasured numbers are discovered, it is necessary to contact specialists who will conduct a full diagnosis and identify faults.
Indicator “low efficiency of catalysts”
If the numbers P0420 appear, these are error codes indicating insufficient efficiency of the catalyst system.
If the problems are not corrected in a timely manner, you will have to spend considerable effort and money on restoring the Toyota Camry automobile unit.
It’s bad if the resource is exhausted, but the problem can be solved: contact a specialized service, where you (or rather, your car) will be helped and assisted in finding problems.
Error 1604
This situation (referred to as P1604) indicates the presence of several (or one) unsuccessful attempts to start the car engine. The solution to the problem depends on the reason why the launch failed. If this is an incorrect start or mechanical action, it is worth trying again; if it is frosty or cold, reheat the unit. If the reason is unclear, only a qualified technician can provide proper assistance in solving this problem. The erroneous parameter P1604 is common, but this does not mean that it can be ignored.
Error value A799
This parameter can be deciphered in different ways, depending on the nature of the malfunction. This may indicate a malfunction of several elements or exceeding the course speed. Errors 799 are less common than other faults, but nevertheless they do occur. The first action that the driver must take is to understand the cause of the problem in order to ensure the stability of all vehicle systems. A competent approach to solving the problem will ensure your peace of mind and constant comfort.
Erroneous values are generated as Check VSC System for Toyota Camry. With timely detection of errors and quick actions in the right direction, you can achieve amazing results and extend the life of the machine.
Fuel supply system
It is impossible to start a car engine without fuel supply. Moreover, the pressure must be at least 25 MPa. Possible malfunctions of the fuel system code P1604:
- fuel line clogged;
- insufficient amount of fuel;
- the fuel is frozen;
- low quality fuel;
- air entrapment in the fuel line;
- clogged filter;
- breakdown of the Common Rail system;
- malfunction of the fuel injection pump;
- injector malfunction.
After eliminating the identified problems, the vehicle is diagnosed again.
Set a trap
Toyota RAV4 XA30 is definitely a good option with reliable engines, transmission and suspension
. Timely service - and it will live up to the title “indestructible”. At the same time, alas, it is very hijacked! The already middle-aged model is still popular among car thieves. Therefore, be careful. You should look for the body number under the front passenger seat. The marking plate is on the left body pillar. Well, the engine number is filled in traditionally. Inspect all this very meticulously, because even the second owner may not know that he is driving a stolen car.
Let me remind you that this particular RAV4, as well as many other verified used vehicles, can be purchased at Automama
.
Used Toyota RAV4 - all the problems and weaknesses
Trouble-shooting
Some causes of error P1604 can be eliminated with your own efforts:
- Accumulator charging. At low crankshaft cranking speeds, this is one of the main causes of problems.
- Replacing glow plugs when diagnosing malfunctions in their operation.
- Replacing fuel with high-quality fuel, storing it in reserve and protecting the car from critically low temperatures (if problems are identified in the operation of the fuel supply system).
Some P1604 code problems related to the engine or crankshaft on a Land Cruiser can only be resolved by contacting service.
Toyota Camry 40 error codes
Check VSC System - a message appears on the on-board computer screen.
The Check VSC System notification itself does not carry specific information; it is a warning that something is wrong with the car. There may not be any significant problems, for example, if you refuel with the engine running, or you have recharged a dead battery, Check VSC System will appear. If there is no breakdown, the message will go away, turn off and start the car 10 times or disconnect the terminal from the battery for 5 minutes. The notification does not go away, then carry out computer diagnostics of the Camry.
P0351, P0352, P0353, P0354, P0355, P0356
Ignition coil errors, the last two can only appear on Toyota V6 engines, for example, 2GR-FE.
Reasons for these codes:
To accurately determine the malfunction, use an oscilloscope to measure the electrical signal from the ignition coil that showed the error. If you don't have an oscilloscope, you can swap the potentially faulty coil with another. For example, there is an error P0351, we moved the coil from the first cylinder to the second, now the scanner shows P0352 - the problem is in the coil, but if the code remains the same P0351 - the wiring or ECU is faulty.
P0172
Error P0172 - Air/fuel mixture too rich. Causes:
To make an accurate diagnosis, contact an experienced specialist.
One option to eliminate the error is to replace the VVT-I valve.
P2237
P2237 – open circuit in the oxygen sensor (A/F) pumping current circuit, P2238 – low current in the oxygen sensor (A/F) pumping current circuit (1 row 1). We are talking about a lambda probe installed before the catalyst, which is located next to the engine. This error may not affect the behavior of the car, but fuel consumption will increase. We would like to warn against replacing this sensor with a non-original one.
The lambda probe, located before the catalyst near the engine, is replaced only with the original one. The second sensor installed after the catalytic converter can be replaced with a universal one.
Using this head will allow you not to remove the heat shield when replacing failed lambda probes.
P0137, P0157
P0137, P0157 – low voltage in the oxygen sensor circuit (bank 1, bank 2 sensor 2).
Causes of errors P0137, P0157:
During active air-fuel ratio control, if the target ratio is rich but the heated oxygen sensor output voltage is less than 0.21 V (lean), the ECM treats this as an excessively low sensor output voltage and sets DTC P0137 or P0157. During active air-fuel ratio control, if the target ratio is lean but the output voltage is greater than 0.59 V (rich), the ECM considers this to be an excessively high sensor output voltage and sets DTC P0138 or P0158.
If replacing the sensor did not bring results, then the technicians could have replaced the wrong sensor (this happens often), or the problem is not in the sensor, but in the circuit or in an exhaust gas leak.
Check all connectors; they may have oxidized or moisture may have gotten into them. Visually inspect the wiring to see if its integrity is damaged. If the circuit is visually in order, then check its operation using an oscilloscope.
Modern scanners
There are now many scanners available for reading car error codes that completely decipher error codes. These programs are translated into Russian, are easy to use and allow you to configure vehicle parameters. For example, the time when the headlights go out after turning off the ignition, after how many seconds the lights in the cabin go out when boarding, disembarking, and more.
The car owner should think about purchasing diagnostic equipment. Not bad manufacturers of diagnostic devices: Launch, ELM, Autel, Autocom, Carman.
Don't call an electrician
The service technicians we interviewed cited only four electrical problems. The most famous is defective gas pedals
. Problem number two - a generator that lasts for a maximum of 150 thousand
.
And then you need to replace the diode bridge
.
The air conditioning compressor
lasts the same amount of time : the rays of the damper plate break off at the coupling. True, several options for inexpensive treatment have already been invented, so there is definitely no need to buy a new compressor.
Funny note - the limit switch is under the brake pedal. It's a cheap part, but Toyota stubbornly continues to install the same one, with contacts that sooner or later burn out.
