U3209 Trouble Code

OBD/2 U3209 error code description and symptoms.

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

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.

Difficulty Level (Expert)
Level
Repair Time (60 Min.)
Time
Cost Prediction : $ 80-120

U3209 Error Code Repair Process :

If your transmission fluid temperature sensor circuit intermittent 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 U3209 and engine control unit are in charge of monitoring a bunch of different transmission fluid temperature sensor circuit intermittent, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool U3209 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.

Common Causes of U3209

A common cause of code U3209 is the failure of Transmission Fluid Temperature Sensor Circuit Intermittent, but there are several other possible causes as well, such as ;

U3209 code for all cars

You can view according U3209 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+U3209 Subaru R1 +U3209 Packard 400 +U3209 Volkswagen Cabriolet +U3209 Dodge Stealth +U3209 Ford Bantam
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