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 B1990
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.
Difficulty Level (Expert)
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Repair Time (35 Min.)
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| Cost Prediction : $ 90-120 |
The scent may B1990 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such B1990, so if the inside of your car b1990 pedal forward / rearward potentiometer feedback circuit failure as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.
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B1990 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. |
You can view according B1990 DTC for your car model. We selected several models to see obd2 solutions click and view it.
| +B1990 Pontiac G6 | +B1990 Reliant Sst | +B1990 Chrysler Pt Cruiser | +B1990 Yes! Clubsport | +B1990 American Roadster |
Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.
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