P0965 Chevrolet Trailblazer 2 OBD Code

OBD/2 P0965 error code description and symptoms.

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code P0965

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

P0965 Chevrolet Trailblazer 2 Error Code Repair Process :

If your vehicle failed a P0965 test and the P0965 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses p0965 pressure control solenoid b control circuit range/performance a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look p0965 pressure control solenoid b control circuit range/performance: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Common Causes of Chevrolet Trailblazer 2 P0965 OBD2 Code

A common cause of code P0965 is the failure of P0965 Pressure Control Solenoid B Control Circuit Range/Performance, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Camshaft advance mechanism binding (VCT unit)
Damaged camshaft position (CMP) sensor
Faulty select solenoid

P0965 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P0965 Chevrolet Trailblazer 2 OBD Code

P0965 Chevrolet Trailblazer 2 Error Code Repair Process :

Common Causes of Chevrolet Trailblazer 2 P0965 OBD2 Code

P0965 code for other Chevrolet cars