P182D 2018 Chevrolet Silverado Code - Internal Mode Switch 'P' Circuit High Voltage
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
- P182D 2018 Chevrolet Silverado indicates Internal Mode Switch 'P' Circuit High Voltage.
- 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 P182D 2018 Chevrolet Silverado Description
What are the Possible Causes of the DTC P182D 2018 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 P182D 2018 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 P182D 2018 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.
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Frequently Asked Questions about P182D 2018 Chevrolet Silverado Code
1. What does the OBDII code P182D mean on a 2018 Chevrolet Silverado?
The P182D code indicates an issue with the Internal Mode Switch (IMS) 'P' circuit, specifically a high voltage condition.
2. What are the symptoms of a P182D code in a 2018 Chevrolet Silverado?
Common symptoms include the inability to shift gears, the transmission stuck in "Park," or the check engine light being illuminated.
3. What causes the P182D code to appear?
Possible causes include a faulty Internal Mode Switch, damaged wiring or connectors in the IMS circuit, or a malfunctioning transmission control module (TCM).
4. How serious is the P182D code in a 2018 Chevrolet Silverado?
This code can lead to drivability issues, such as being unable to shift out of Park, making it important to address promptly.
5. Can I drive my 2018 Chevrolet Silverado with a P182D code?
Driving may be impossible if the transmission is stuck in Park, and operating the vehicle with this code may cause further damage.
6. How can I diagnose the P182D code in my Silverado?
Start by inspecting the wiring and connectors associated with the Internal Mode Switch for damage or corrosion. Next, test the IMS and related circuits for proper voltage and continuity.
7. What repairs can fix a P182D code on a 2018 Chevrolet Silverado?
Repairs may include replacing the Internal Mode Switch, repairing or replacing damaged wiring, or reprogramming/replacing the Transmission Control Module (TCM).
8. Can a dead battery cause the P182D code?
A weak or dead battery typically doesn’t cause this code directly, but electrical issues can exacerbate problems with the IMS circuit.
9. How much does it cost to fix a P182D code on a 2018 Silverado?
Repair costs vary but typically range from $150 to $500, depending on whether the issue is with the IMS, wiring, or TCM.
10. Can a software update resolve the P182D code?
In some cases, a TCM reprogramming or software update may resolve the issue if no physical damage is present.
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