U029F Lon Boll 12 OBD Code

OBD/2 U029F error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as U029F. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for U029F

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

U029F Lon Boll 12 Error Code Repair Process :

The rule of U029F code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of cold start injector 2 malfunction. Likewise, overriding the OBD U029F error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Difficulty Level (Soso)

Repair Time (50 Min.)

Cost Prediction : $ 60-110

Common Causes of Lon Boll 12 U029F OBD2 Code

A common cause of code U029F is the failure of Cold Start Injector 2 Malfunction, but there are several other possible causes as well, such as ;

• EVAP system hose leaking
• Camshaft Position Sensor harness is open or shorted
• Fuel filler cap remains open or fails to close
• Spark plugs may be faulty

U029F 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.

U029F code for other Lon cars

You can view according U029F DTC for your car model. We selected several models to see obd2 solutions click and view it.

• U029F Lon Boll Double Berline

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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