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 U2206
At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.
Difficulty Level (Easy)
![]() |
Repair Time (20 Min.)
![]() |
Cost Prediction : $ 40-75 |
If your reverse mirror output circuit short to ground 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 U2206 and engine control unit are in charge of monitoring a bunch of different reverse mirror output circuit short to ground, and if they get a reading that's a little out of whack, up pops the check engine light.
![]() |
U2206 is a kind of Network Trouble Code
U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason. |
You can view according U2206 DTC for your car model. We selected several models to see obd2 solutions click and view it.
+U2206 Lada 1600 | +U2206 Audi Coupe | +U2206 Hyundai Concept | +U2206 Arnolt Mg | +U2206 Vandenbrink Carver |