C2A04 Oldsmobile 4-4-2 OBD Code

OBD/2 C2A04 error code description and symptoms.

The Transmission Range Sensor (also referred to as the PRNDL input an/or neutral safety switch) tells the transmission control module (TCM) an the engine control module (PCM) that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc. It is attached directly to the manual valve of transmission, so when the shift lever is moved from park to drive, the Transmission Range Sensor communicates this critical information to the above mentioned vehicle control module systems.

Gear changes are accomplished by a command from the TCM to energize the clutch actuator to release the clutch; after which various actuators inside the transmission disengage the current gear, and depending on current operating conditions, engage the next higher or lower gear ratio. All of this happens much faster than a human driver could change gears, and in most applications, gear changes are as smooth and seamless as on any fully automatic transmission.

C2A04 Oldsmobile 4-4-2 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C2A04 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If mirror driver vertical switch circuit short to ground so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the mirror driver vertical switch circuit short to ground.

Common Causes of Oldsmobile 4-4-2 C2A04 OBD2 Code

A common cause of code C2A04 is the failure of Mirror Driver Vertical Switch Circuit Short To Ground, but there are several other possible causes as well, such as ;

Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Engine Control Module (ECM)
Ignition coils harness is open or shorted
EVAP system hose leaking

C2A04 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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C2A04 Oldsmobile 4-4-2 OBD Code

C2A04 Oldsmobile 4-4-2 Error Code Repair Process :

Common Causes of Oldsmobile 4-4-2 C2A04 OBD2 Code

C2A04 code for other Oldsmobile cars