P071A 2016 GMC Sierra Code - Transmission Tow Mode Switch Circuit
Quick Answer
The P071A diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the Transmission Tow Mode Switch Circuit. Common causes include Faulty tow/haul mode switch, Wiring issues in the circuit, Corrosion or damage to electrical connections. 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
- P071A 2016 GMC Sierra indicates Transmission Tow Mode Switch Circuit.
- Common causes
- Common causes include Faulty tow/haul mode switch, Wiring issues in the circuit, Corrosion or damage to electrical connections.
- 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 P071A 2016 GMC Sierra Description
The P071A diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the Transmission Tow Mode Switch Circuit. This code specifically relates to an issue with the circuit that controls the transmission's tow/haul mode switch. Tow/haul mode is a feature in many modern vehicles that adjusts the transmission's shift points and performance characteristics to better accommodate towing or hauling heavy loads. When this circuit malfunctions, it can lead to improper operation of the tow/haul mode, affecting the vehicle's performance and efficiency.
Common Causes of P071A 2016 GMC Sierra
- Faulty tow/haul mode switch
- Wiring issues in the circuit
- Corrosion or damage to electrical connections
- Malfunctioning transmission control module (TCM)
- Software issues in the vehicle's computer system
Symptoms of P071A 2016 GMC Sierra
- Erratic shifting behavior
- Reduced towing capacity
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Difficulty engaging or disengaging tow/haul mode
How to Fix P071A 2016 GMC Sierra
- Diagnose the issue using a scan tool to confirm the P071A code and pinpoint the exact cause of the problem.
- Inspect the tow/haul mode switch and associated wiring for any visible damage or corrosion.
- Test the circuit using a multimeter to check for continuity and proper voltage levels.
- Replace the tow/haul mode switch if it is found to be faulty.
- Repair any damaged wiring or connectors in the circuit and clear the DTC from the vehicle's computer system.
Cost to Fix P071A 2016 GMC Sierra
The cost of repairing the Transmission Tow Mode Switch Circuit issue can vary depending on the extent of the problem and the specific parts and labor required for the repair. In general, the cost of parts for this repair may range from $50 to $150, while labor costs can range from $100 to $300. Overall, the total cost of repairing this issue can amount to anywhere from $150 to $450. It is advisable to consult with a local auto repair shop to get a more accurate estimate based on your specific vehicle make and model, as well as the severity of the issue.
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