Ford F-350 B0259 Code:

OBD-II Diagnostic Body (B) Trouble Code

Trouble In Ford F-350 B0259 Possible Cause

The most common cause for this Ford F-350 B0259 type of failure is due to liquids spilled on the upshift/downshift switch. Open or shorted electrical wiring, damaged, corroded, or disconnected wiring or connectors are also a viable possibility.

Common Symptoms For Ford F-350 B0259

  1. Repair or replace system circuitry, connectors, and/or components that fail to coincide with manufacturer's specs
  2. This will help to determine whether or not the malfunction is intermittent. After the codes are cleared, test drive the vehicle to see if the code returns
  3. Some applications are equipped with up to 18 separate control modules. If you choose to tackle this monumental task, begin with a careful visual inspection of all system circuitry, connectors, and fuses
  4. Should all system circuitry and sensors check out and the transmission is in good working order, suspect a faulty PCM but keep in mind that PCM failure is rare and PCM replacement will require reprogramming.

Similar Problems

Fuel And Air Metering
Low Coolant Circuit
TFP Valve Position Switch-Drive Without Drive Ratio

Ford F-350 B0259 Troubleshooting

A sure sign of this is smoke or steam being emitted from underneath the hood. The ignition timing could be set incorrectly and will require adjustment. If, when looking under the hood, you notice that the drive belts appear loose, they need to be tightened or completely replaced. If there is a noticeable pool of fluid underneath the car, this could be a sign of the cylinder head gasket failing. That will be confirmed in the form of billowing smoke being blown from the exhaust system. Parts or components should not be replaced with reference to only a Ford F-350 B0259 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

How to turn off Ford F-350 B0259 check engine light ?

There are two ways to turn off the check engine light:

A repair technician can do so once repairs have been made.
The OBD II can automatically turn it off when it fails to detect the problem after several diagnostic cycles.

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