What Does P2775 Mean?
The PCM has detected that the upshift switch signal is outside expected parameters or showing implausible values. This indicates the manual upshift switch input is inconsistent or malfunctioning in manual shift mode transmissions.
Common Causes
35%
Failing upshift switch with intermittent or erratic contact
30%
Intermittent wiring or loose connection in upshift switch circuit
20%
Worn or damaged shift paddle mechanism affecting switch actuation
10%
Voltage irregularities or ground issues in switch circuit
5%
Failed transmission control module misreading switch input
Diagnostic Steps
1
Step 1: Monitor upshift switch status on scan tool while repeatedly actuating the switch
2
Step 2: Measure switch signal voltage at connector in both pressed and released positions
3
Step 3: Test switch resistance or continuity across terminals using ohmmeter
4
Step 4: Inspect shift paddle or lever mechanism for proper mechanical operation and alignment
5
Step 5: Check wiring harness for intermittent opens, shorts, or connector corrosion
Estimated Repair Cost
$80 - $400
Parts + labor, varies by vehicle and location
The PCM has detected that the upshift switch signal is outside expected parameters or showing implausible values. This indicates the manual upshift switch input is inconsistent or malfunctioning in manual shift mode transmissions.
The most common cause of P2775 (Upshift Switch Circuit Range/Performance) is: Failing upshift switch with intermittent or erratic contact
Typical repair costs for P2775 range from $80 to $400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Manual shift mode may not function correctly or upshifts may be erratic. Transmission will typically default to automatic mode, allowing safe normal driving with reduced control.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2775 to identify the root cause.
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Quick Info
Category
Powertrain
System
Transmission Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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