P18C2 2017 Chevrolet Silverado Code - Internal Mode Switch 'P' Circuit Stuck On Invalid Voltage Range
Quick Answer
The internal mode switch indicates the Transmission Control Module (TCM) which gear position the vehicle operator has selected. Common causes include Faulty Transmission Internal Mode Switch, Transmission Internal Mode Switch harness is open or shorted, Transmission Internal Mode Switch circuit poor electrical connection. 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
- P18C2 2017 Chevrolet Silverado indicates Internal Mode Switch 'P' Circuit Stuck On Invalid Voltage Range.
- Common causes
- Common causes include Faulty Transmission Internal Mode Switch, Transmission Internal Mode Switch harness is open or shorted, Transmission Internal Mode Switch circuit poor electrical connection.
- 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.
Code P18C2 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC P18C2 2017 Chevrolet Silverado?
- Faulty Transmission Internal Mode Switch
- Transmission Internal Mode Switch harness is open or shorted
- Transmission Internal Mode Switch circuit poor electrical connection
- Faulty Transmission Control Module (TCM)
How to Fix the DTC P18C2 2017 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P18C2 2017 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P18C2 2017 Chevrolet Silverado code?
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Need Help with the Code?
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Frequently Asked Questions about P18C2 2017 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P18C2 on a 2017 Chevrolet Silverado?
The common symptoms of code P18C2 include issues with shifting gears, the transmission getting stuck in a particular gear, and the vehicle's engine performance being affected.
2. What does the Internal Mode Switch 'P' Circuit Stuck On Invalid Voltage Range mean for my 2017 Chevrolet Silverado?
This code indicates a problem with the internal mode switch circuit in the transmission, specifically related to voltage levels being outside the expected range.
3. What are the possible causes of OBDII code P18C2 on a 2017 Chevrolet Silverado?
Potential causes of code P18C2 include a faulty internal mode switch, damaged wiring or connectors in the circuit, low transmission fluid levels, or issues with the transmission control module.
4. How serious is the Internal Mode Switch 'P' Circuit Stuck On Invalid Voltage Range issue in a 2017 Chevrolet Silverado?
Ignoring this issue can lead to further transmission problems and potentially cause damage to other components. It is advisable to address this problem promptly to prevent more significant issues.
5. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P18C2 present?
It is not recommended to continue driving the vehicle with this code active, as it can lead to transmission performance issues and potential safety concerns. Seek professional help to diagnose and repair the problem.
6. How can I diagnose OBDII code P18C2 on my 2017 Chevrolet Silverado?
Diagnosing this code involves using a scan tool to retrieve the specific fault codes, inspecting the internal mode switch and related wiring for damage, and testing the voltage levels in the circuit.
7. What are some repair tips for fixing the Internal Mode Switch 'P' Circuit Stuck On Invalid Voltage Range issue in a 2017 Chevrolet Silverado?
Repair tips include checking and replacing the internal mode switch if necessary, repairing any damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the fault codes after repairs are completed.
8. Can I reset OBDII code P18C2 on my 2017 Chevrolet Silverado by disconnecting the battery?
While disconnecting the battery may clear the code temporarily, it is important to address the underlying issue causing the fault code to prevent it from reoccurring. It is recommended to diagnose and repair the problem properly.
9. How much does it typically cost to repair OBDII code P18C2 on a 2017 Chevrolet Silverado?
The cost of repairing code P18C2 can vary depending on the exact cause of the issue, the parts needed for repair, and labor costs. It is advisable to consult with a professional mechanic for an accurate estimate.
10. Is OBDII code P18C2 covered under warranty for a 2017 Chevrolet Silverado?
If your vehicle is still under warranty, the repair for code P18C2 may be covered depending on the terms of the warranty. Contact your Chevrolet dealership or refer to your warranty documentation for more information.
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