P0962 Diagnostic Trouble Code: Pressure Control (PC) Solenoid “A” Control Circuit Low

Fault code P0962 is called “Pressure Control (PC) Solenoid “A” Control Circuit Low” but in different programs it may be called differently. This fault designation applies to all vehicles equipped with OBD-II.

Technical description and explained code P0962

This diagnostic trouble code (DTC) is a generic transmission code. Error P0962 is considered a general code because it applies to all makes and models of vehicles. Although the specific repair steps may vary slightly depending on the model.

P0962 Diagnostic Trouble Code: Pressure Control (PC) Solenoid "A" Control Circuit Low

Fault code P0962 OBD-II is set when the control module (PCM) has detected a low signal in the transmission pressure control solenoid valve “A” circuit. Most automatic transmissions have at least three valves, which are labeled A, B and C.

The code set is based on a specific fault that alerts the PCM and turns on the check engine light.

The transmission pressure control solenoid valves are used to control fluid pressure and proper operation of the automatic transmission. The PCM receives an electronic signal based on the pressure inside the solenoid valve. The automatic transmission is controlled by belts and clutches that shift gears by applying fluid pressure at the right place at the right time.

Based on signals from related devices that control vehicle speed, the PCM controls the pressure solenoid valves. To direct fluid at the proper pressure to the various hydraulic circuits. Which change the transmission ratio at the right time.

Code P0962 is set by the PCM when the pressure control solenoid valve “A” is not working properly due to a low signal level in the control circuit.

Symptoms of vehicle malfunctions

The main signal that an error P0962 has occurred is the Malfunction Indicator Lamp (MIL) is also known as the CheckEngine Light.

It can also be warning signs such as:

  1. The “Check Engine” control lamp on the control panel will light up (the code will be written to the ECM memory as a fault).
  2. The vehicle goes into emergency mode.
  3. The transmission slips when shifting gears.
  4. Transmission is stuck in gear.
  5. Hard gear shifting.
  6. Transmission overheating.
  7. Increased fuel consumption.
  8. Possible symptoms similar to ignition failure.

The severity of fault code P0962 is moderate, but can quickly escalate to a more serious level if not corrected in a timely manner.

Factors that can cause this error code

The error code P0962 can mean that one or more of the following problems have occurred:

  • The pressure control solenoid valve is defective.
  • Contaminated fluid or clogged transmission filter.
  • Low transmission fluid level.
  • Transmission fluid passages are clogged.
  • Faulty transmission pump or transmission valve housing.
  • Other mechanical problems inside the transmission.
  • A wiring problem or damaged connector.
  • In rare cases, PCM malfunction.

How to fix or reset OBD-2 code P0962

Some suggested steps for troubleshooting and fix the error code P0962:

  1. Change ATF fluid and filter.
  2. Fill transmission fluid to required level.
  3. Flushing to clean internal ducts of the transmission.
  4. Test, if necessary replace faulty pressure control solenoid valve.
  5. Repair or replace faulty transmission pump and transmission valve housing.
  6. Check connectors as well as wiring.
  7. Flash or replace PCM.

Diagnose and repair of problems

Before you begin the process of troubleshooting P0962, you should research the Technical Service Bulletins (TSBs) for your specific vehicle. In some cases, this can save a lot of time by pointing you in the right direction.

Next, you should check the fluid level and check for contamination. Before replacing the fluid, you should check the vehicle’s records to see when the filter and fluid were last changed.

After that, you should do a detailed visual inspection to check the condition of the wiring for obvious defects. Check the connectors and wiring to the transmission pressure control solenoid valve, transmission pump and PCM. Depending on the configuration, the transmission pump may be electrically or mechanically driven.

Normal readings for wiring and connections should be 0 ohms of resistance. Wiring continuity checks should always be performed with power disconnected from the circuit. To avoid short-circuiting and creating additional damage.

Resistance or lack of continuity indicates faulty wiring that is open or shorted. In this case, repair or replacement will be required to clear code P0962.

On which vehicles does this problem occur most frequently

Fault code P0962 can occur on different vehicles but there are statistics on which brands this occurs most often. Here is a list of some of them:

  • Acura (TSX)
  • BMW
  • Chevrolet (Lacetti)
  • Fiat (500)
  • Ford (Crown Victoria, F-150)
  • GMC
  • Honda (Accord, CR-V, Civic, Fit)
  • Land Rover
  • Nissan
  • Saturn
  • Suzuki (Grand Vitara)
  • Volkswagen (Polo)
  • LADA (Granta)

Fault code P0962 can sometimes be found with other errors. The most common are the following: P0745, P0746, P0747, P0748, P0749, P0756, P0960, P0961, P0963.

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