B20AA Land Rover Discovery 3 OBD Code

OBD/2 B20AA 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.

B20AA Land Rover Discovery 3 Error Code Repair Process :

If your left power sliding door open/close output circuit short to battery check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system B20AA and engine control unit are in charge of monitoring a bunch of different left power sliding door open/close output circuit short to battery, and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Expert)

Repair Time (35 Min.)

Cost Prediction : $ 40-75

Common Causes of Land Rover Discovery 3 B20AA OBD2 Code

A common cause of code B20AA is the failure of Left Power Sliding Door Open/Close Output Circuit Short to Battery, 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
• Faulty spark plug (s)
• Exhaust tube
• Fuel filler cap remains open or fails to close

B20AA is a kind of Body Trouble Code Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

B20AA code for other Land cars

You can view according B20AA DTC for your car model. We selected several models to see obd2 solutions click and view it.

• B20AA Land Rover Defender
• B20AA Land Rover Discovery
• B20AA Land Rover Discovery 2
• B20AA Land Rover Discovery 4
• B20AA Land Rover Discovery 5
• B20AA Land Rover Evoque
• B20AA Land Rover Freelander
• B20AA Land Rover Freelander 2
• B20AA Land Rover Lr2
• B20AA Land Rover Lr3
• B20AA Land Rover Range Rover
• B20AA Land Rover Serie I
• B20AA Land Rover Series I
• B20AA Land Rover Series Ii
• B20AA Land Rover Series Iii
• B20AA Land Rover Velar

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