P0955 Code - Auto Shift Manual Mode Circuit
Quick Answer
The Transmission Control Module (TCM) monitors the Auto Shift Manual signal from the Auto Shift Manual Switch. Common causes include Faulty Auto Shift Manual Switch, Auto Shift Manual Switch harness is open or shorted, Auto Shift Manual 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
- P0955 indicates Auto Shift Manual Mode Circuit.
- Common causes
- Common causes include Faulty Auto Shift Manual Switch, Auto Shift Manual Switch harness is open or shorted, Auto Shift Manual 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 P0955 Description
What are the Possible Causes of the DTC P0955?
- Faulty Auto Shift Manual Switch
- Auto Shift Manual Switch harness is open or shorted
- Auto Shift Manual Switch circuit poor electrical connection
How to Fix the DTC P0955?
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 P0955 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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Information for Specific Makes
- P0955 Dodge — Auto Shift Manual Mode Circuit
Frequently Asked Questions about P0955 Code
1. What does the OBDII code P0955 mean?
P0955 refers to an issue in the Auto Shift Manual Mode Circuit, which controls manual gear-shifting functionality in vehicles equipped with automatic transmissions.
2. What are the common symptoms of a P0955 code?
Symptoms may include the inability to use manual shift mode, erratic shifting, the transmission stuck in one gear, or the illumination of the check engine light.
3. What causes the P0955 code to appear?
Possible causes include a faulty manual shift switch, damaged wiring or connectors in the manual mode circuit, or issues with the transmission control module (TCM).
4. Can I drive my car with a P0955 code?
While the vehicle may still be drivable, you may lose manual shifting functionality and experience limited performance. Prolonged driving without addressing the issue could cause further damage.
5. How is the P0955 code diagnosed?
A mechanic will typically use a scan tool to confirm the code, inspect the manual mode switch, test the circuit for continuity, and check for wiring damage or loose connections.
6. How do I fix a P0955 code?
Repair options may include replacing the manual shift switch, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the TCM if necessary.
7. How much does it cost to repair a P0955 code?
Repair costs vary, but replacing a manual shift switch typically ranges from $150 to $300, depending on labor rates and the specific vehicle.
8. Can a blown fuse cause a P0955 code?
Yes, a blown fuse in the circuit controlling the manual shift mode can trigger the P0955 code. Checking the fuse is a good starting point.
9. Will clearing the code with a scanner solve the problem?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be fixed to prevent the code from returning.
10. Is the P0955 code specific to any vehicle make?
No, the P0955 code is a generic OBDII code and can appear on various makes and models, but the exact repair steps may vary depending on the vehicle.
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