P071F Code - Transmission Mode Switch 'B' Circuit High
Quick Answer
The P071F diagnostic trouble code (DTC) indicates a problem with the Transmission Mode Switch 'B' Circuit being in a high voltage condition. Common causes include Faulty Transmission Mode Switch, Damaged wiring or connectors in the transmission mode switch circuit, Corrosion or moisture in the switch or circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P071F indicates Transmission Mode Switch 'B' Circuit High.
- Common causes
- Common causes include Faulty Transmission Mode Switch, Damaged wiring or connectors in the transmission mode switch circuit, Corrosion or moisture in the switch or circuit.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P071F Description
The P071F diagnostic trouble code (DTC) indicates a problem with the Transmission Mode Switch 'B' Circuit being in a high voltage condition. This sensor is responsible for determining the position of the transmission mode switch, which informs the vehicle's computer about the selected gear range (Park, Reverse, Neutral, Drive, etc.). When the circuit is reading a high voltage signal, it suggests that an abnormal condition exists within the switch, potentially leading to incorrect gear selection or shifting issues.
Common Causes of P071F
- Faulty Transmission Mode Switch
- Damaged wiring or connectors in the transmission mode switch circuit
- Corrosion or moisture in the switch or circuit
- Electronic control module (ECM) issues
- Mechanical problems within the transmission itself
Symptoms of P071F
- Difficulty shifting gears
- Harsh or delayed shifting
- Transmission slipping
- Illumination of the Check Engine Light
- Reduced fuel efficiency
How to Fix P071F
- Perform a thorough inspection of the transmission mode switch and its wiring for any visible damage or corrosion.
- Test the switch using a multimeter to check for proper resistance values and ensure it is functioning correctly.
- Replace the transmission mode switch if it is found to be faulty.
- Clear the DTC from the vehicle's computer using a diagnostic scanner.
- Test drive the vehicle to confirm that the issue has been resolved and that the transmission is shifting properly.
Cost to Fix P071F
The typical repair cost for addressing the P071F code can range from $100 to $300, depending on the specific cause of the issue and the cost of parts. This estimate includes the price of a new transmission mode switch, any necessary wiring repairs, and labor costs. Keep in mind that additional diagnosis time and labor rates at auto repair shops may affect the final cost. It's advisable to consult with a qualified mechanic to get an accurate estimate for your vehicle's repair.
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