C20A2 Volvo S70 OBD Code

OBD/2 C20A2 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 C20A2

On some transmissions, such as automated manual transmissions or automatic transmissions with manual mode, the GSP switch lets the TCM know whether or not the driver has selected automatic or manual function. On manual transmissions, the GSP switch informs the TCM which gear the driver is selecting, and may function as a neutral safety switch, depending on system design. The TCM also uses the gate select position switch to monitor transmission operation. For example, if the driver selects manual mode and selects 3rd gear on an automatic transmission, the TCM may monitor speed sensors to detect clutch and brake slippage.

C20A2 Volvo S70 Error Code Repair Process :

If your vehicle failed a C20A2 test and the C20A2 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 engine coolant sensor intermittent/ect sensor intermittent 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 engine coolant sensor intermittent/ect sensor intermittent: 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 Volvo S70 C20A2 OBD2 Code

A common cause of code C20A2 is the failure of Engine Coolant Sensor intermittent/ECT Sensor Intermittent, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty Variable Camshaft Timing (VCT) position solenoid
Faulty starter motor
Intake Valve Timing Control Solenoid Valve circuit poor electrical connection

C20A2 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

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

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C20A2 Volvo S70 OBD Code

C20A2 Volvo S70 Error Code Repair Process :

Common Causes of Volvo S70 C20A2 OBD2 Code

C20A2 code for other Volvo cars