Guide To P2535 OBD Error Code Solutions

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Is the ignition switch broken? Do you find the starter motor to be broken? Then there is a high chance that the P2535 error code is stored in your vehicle. Improper transmission shift is usually known as ignition switch run/ start position circuit high. As you turn on the vehicle, the battery voltage will be sent to the vehicle’s electrical system. The voltage of the transmission control module is properly checked to ensure it is right. The P2535 error will be set if the low voltage is detected by the transmission control module.

The voltage to the fuel delivery system, PCM and ignition system is supplied by the ignition switch. The PCM will expect the input reference voltage to be at least 12.6 volts which is the same as that of the battery voltage. The P2535 error will get stored in the vehicle if the signal falls below the expected voltage

What causes this problem with the Ignition Switch Run/Start Position Circuit High?

• Either the fuses or fusible links might be burnt out.
• You might notice the wires to be corroded, shorted or open.
• Electrical connectors might be faulty.
• Battery cables might be eroded.
• Alternator might be broken.
• Damaged battery.

1. Powertrain Control Module - The engine will fail to start or the fuel economy will be poor if the powertrain control module is faulty. Get them replaced as soon as possible so that you can get rid of the P2535 error code.
2. Ignition Switch - Replacing the faulty ignition switch is highly necessary as the malfunctioning of the vehicle can be avoided.
3. Battery Control Module - If the battery control module is damaged, then the fuel economy will be reduced. Replace or repair it as soon as possible.
4. Starter Motor - intermittent issues from the vehicle is a sign of a defective starter motor. Replace them as soon as possible by getting a new one from PartsAvatar.
5. Transmission Control Module - Does the check engine light blink very often? Then the TCM can be damaged which needs replacement to avoid P2535 error.
6. Alternator - If the alternator is defective, it will not generate enough electricity which is needed for your engine to run. Replace it to avoid P2535 error.
7. Battery - One of the common symptoms for a damaged battery is the illumination of the check engine

After knowing all the cause behind the issues, let’s have a look at a few common symptoms of this problem. Read through this section to learn more about this error code P2535.

Common Symptoms

The light will always remain turned on or it will light erratically when the DPF is restored. The engine will be slow when you try to accelerate.

• The hesitation of the engine during acceleration.
• Slender or rich exhaust.
• The leak from the exhaust will be more.

Fixing problems with your car is not as easy as it might seem. You need to be extremely careful and follow certain steps.

• You must change the damaged ignition switch.

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If you want to easily diagnose this fault code P2535, then all you have to do is to follow the steps which are mentioned below:

• The voltage from the battery is delivered by the ignition switch to every other system in the vehicle.
• When the key is placed in the ignition and turned on, a mechanic actuator will slide an electronic into place so that the components of the vehicle will get the required voltage.
• The battery voltage to the inner side of the switch is delivered by the wires and cables.
• The battery voltage will be conserved when the key is turned off.
• The voltage will be delivered in the accessory or auxiliary position only to specific vehicles which are in use especially when the vehicle is not moving.
• In order to diagnose the P2535 error, the mechanic will use certain tools and techniques which also includes:
• In order to diagnose the code, the mechanic will use a code reader or scanner accompanied with a digital volt/ohmmeter.
• The wiring diagram which is specified by the vehicle manufacturer will be used to check the ignition connectors as well as the wires of the switches.
• The defective wires, connectors, and other components have to be replaced or fixed as needed.
• Once the repair work is properly done, the system has to be retested to make sure that everything works perfectly with the help of a scanner.
• The freeze frame data has to be recorded again with the help of a scanner.
• Once the code is cleared, run your vehicle to see if the error code appears again.
• Battery voltage and ground signals have to be carefully checked.
• With the help of an ohmmeter, see if there is any opening in the battery voltage or ground circuits and check for resistance in both the circuits. This process can also be done by detaching every connector so that damage can be prevented.
• Fuses and fusible links have to be checked to know if they are blown.
• Every one of the linked circuits has to be checked and the findings have to be compared along with the specification by the manufacturer.
• Each of the defective circuits, connectors and other components which do not agree with the manufacturer’s specification have to be changed or fixed.
• The vehicle has to be re-tested again.

Common Mistakes When Diagnosing the P2535 Code

• Ignition switch might be broken.
• There might be some problem with the electrical wires.
• Transmission control module (TCM) might be malfunctioning.