P071A 2017 GMC Sierra Code - Transmission Tow Mode Switch Circuit
Quick Answer
The P071A code for a 2017 GMC Sierra indicates a problem with the Transmission Tow Mode Switch Circuit. Common causes include Faulty tow/haul mode switch, Wiring issues in the tow/haul mode circuit, Faulty transmission control module. 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 2017 GMC Sierra indicates Transmission Tow Mode Switch Circuit.
- Common causes
- Common causes include Faulty tow/haul mode switch, Wiring issues in the tow/haul mode circuit, Faulty transmission control module.
- 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 2017 GMC Sierra Description
The P071A code for a 2017 GMC Sierra indicates a problem with the Transmission Tow Mode Switch Circuit. This code specifically relates to the circuit that controls the transmission's tow/haul mode, which is designed to optimize performance when towing heavy loads. The tow/haul mode adjusts the transmission shift points, throttle response, and torque converter lockup to provide better towing capabilities and overall vehicle control.
Common Causes of P071A 2017 GMC Sierra
- Faulty tow/haul mode switch
- Wiring issues in the tow/haul mode circuit
- Faulty transmission control module
- Corrosion or damage to the connectors in the circuit
- Electrical issues in the transmission system
Symptoms of P071A 2017 GMC Sierra
- Difficulty engaging or disengaging tow/haul mode
- Transmission slipping or shifting erratically when towing
- Decreased towing capacity
- Illumination of the check engine light
- Decreased fuel efficiency
How to Fix P071A 2017 GMC Sierra
- Begin by conducting a thorough inspection of the tow/haul mode switch and circuit, checking for any visible damage or corrosion.
- Use a multimeter to test the continuity of the circuit and check for any shorts or open circuits.
- Replace the tow/haul mode switch if it is found to be faulty.
- Repair or replace any damaged wiring or connectors in the circuit.
- If the issue persists, consider having the transmission control module diagnosed and potentially replaced.
Cost to Fix P071A 2017 GMC Sierra
The typical repair costs for addressing a P071A code can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. It's important to note that these are rough estimates, and the actual costs can vary based on factors such as the extent of the repair needed, the location of the repair shop, and the make and model of the vehicle. Additionally, diagnosis time and labor rates can vary significantly, so it's recommended to obtain a detailed quote from a trusted auto repair shop before proceeding with the repair.
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