What Does P2830 Mean?
The TCM has detected abnormally high voltage on the control circuit for pressure control solenoid K. This typically indicates an open ground circuit, short to power, or solenoid winding failure preventing current flow.
Safety Warning
Will typically cause transmission to enter failsafe/limp mode with limited gear selection. Driving capability severely limited; vehicle should only be driven to service facility.
Common Causes
35%
Open or corroded ground circuit for solenoid K
25%
Short to voltage in wiring harness between TCM and solenoid
25%
Failed pressure control solenoid K with open internal circuit
10%
Poor ground connection at transmission case or TCM
5%
TCM driver circuit failure maintaining high voltage output
Diagnostic Steps
1
Step 1: Verify transmission ground connections are clean, tight, and have less than 0.1 ohm resistance to battery negative
2
Step 2: Disconnect solenoid K and measure voltage on control wire from TCM (should be 0V with key on, engine off)
3
Step 3: Measure solenoid K resistance; infinite reading indicates open solenoid
4
Step 4: Check for voltage on solenoid circuit with everything disconnected; presence indicates short to power
5
Step 5: Inspect harness for damage near hot components or areas where chafing against body/frame could occur
Estimated Repair Cost
$180 - $850
Parts + labor, varies by vehicle and location
The TCM has detected abnormally high voltage on the control circuit for pressure control solenoid K. This typically indicates an open ground circuit, short to power, or solenoid winding failure preventing current flow.
The most common cause of P2830 (Pressure Control Solenoid "K" Control Circuit High) is: Open or corroded ground circuit for solenoid K
Typical repair costs for P2830 range from $180 to $850, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Will typically cause transmission to enter failsafe/limp mode with limited gear selection. Driving capability severely limited; vehicle should only be driven to service facility.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2830 to identify the root cause.
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Quick Info
Category
Powertrain
System
Transmission hydraulic pressure control
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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