What Does the P071C Code Mean?
The P071C code is triggered when the Transmission Mode Switch “A” Circuit is detected to be high. This switch is responsible for enhancing the shifting of the transmission, particularly in towing conditions. When this code is set, it indicates that the towing mode has been disabled due to a fault with the switch or its circuitry.
What Causes the P071C Code?
Several factors can lead to the P071C code being triggered, including:
- Failure of the shift lever assembly
- Transmission Control Module (TCM) failure
- Wiring issues, such as shorts or breaks in the circuit
What Are the Symptoms of the P071C Code?
The primary symptom of the P071C code is the disabling of the towing mode, which can significantly affect the vehicle’s performance when towing heavy loads. There may be no other visible symptoms unless further diagnostic tests reveal additional issues.
How Serious Is the P071C Code?
The P071C code is considered urgent, as it can indicate significant malfunctions in the vehicle’s transmission system. Delaying repairs can lead to further damage, potentially resulting in costly repairs or even hazardous driving conditions.
How to Diagnose the P071C Code
To diagnose the P071C code, a mechanic will typically perform the following steps:
- Use an OBD-II scanner to confirm the code and check for any related codes.
- Inspect the wiring and connectors associated with the Transmission Mode Switch for damage or corrosion.
- Test the shift lever assembly and TCM for proper operation.
- Perform a visual inspection of the transmission system for any signs of wear or failure.
Common Repairs for the P071C Code
Repairs for the P071C code can vary based on the underlying cause but may include:
- Replacing the shift lever assembly
- Repairing or replacing damaged wiring or connectors
- Replacing the Transmission Control Module (TCM)
How Much Does It Cost to Fix the P071C Code?
The cost to fix the P071C code can vary widely based on the specific issue identified. On average, repairs can range from $100 to $1,000, depending on whether it requires a simple wiring fix or a more complex replacement of the TCM or shift lever assembly.
Can I Fix the P071C Code Myself?
While some basic repairs, such as checking connections and wiring, can be done by a knowledgeable DIYer, it is crucial to have a proper understanding of the transmission system. Given the potential for damage and the complexity of transmission components, consulting with a professional mechanic is recommended for a thorough diagnosis and repair.
