What Does P2814 Mean?
The TCM has detected abnormally low voltage in the pressure control solenoid 'G' control circuit. This indicates the circuit voltage is below the minimum threshold required for proper solenoid operation.
Common Causes
40%
Short to ground in wiring between TCM and pressure control solenoid 'G'
30%
Internal short to ground in pressure control solenoid 'G'
15%
Poor ground connection or damaged ground circuit
10%
Damaged TCM with internal short causing low voltage output
5%
Chafed wiring harness grounding against transmission case or chassis
Diagnostic Steps
1
Step 1: Disconnect pressure control solenoid 'G' and measure resistance to ground; low resistance indicates solenoid short
2
Step 2: Check for short to ground in wiring harness between TCM and solenoid using ohmmeter
3
Step 3: Inspect wiring harness routing for damage, chafing, or contact with hot or sharp components
4
Step 4: Measure voltage at solenoid connector with key on engine running; compare to specifications
5
Step 5: If wiring and solenoid test good, test TCM output circuit for proper voltage supply capability
Estimated Repair Cost
$200 - $900
Parts + labor, varies by vehicle and location
The TCM has detected abnormally low voltage in the pressure control solenoid 'G' control circuit. This indicates the circuit voltage is below the minimum threshold required for proper solenoid operation.
The most common cause of P2814 (Pressure Control Solenoid "G" Control Circuit Low) is: Short to ground in wiring between TCM and pressure control solenoid 'G'
Typical repair costs for P2814 range from $200 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Transmission may enter limp mode with reduced performance. Short circuit condition could potentially damage the TCM if not addressed promptly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2814 to identify the root cause.
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Quick Info
Category
Powertrain
System
Transmission
Difficulty
Type
Generic (SAE)
Recommended Tools
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