What Does P2812 Mean?
The TCM has detected an open circuit in the pressure control solenoid 'G' control circuit. This means electrical current cannot flow through the circuit due to a complete break in the wiring or solenoid.
Common Causes
35%
Open circuit in wiring harness between TCM and solenoid 'G'
30%
Failed pressure control solenoid 'G' with internal open circuit
20%
Disconnected or severely corroded connector at solenoid or TCM
10%
Damaged transmission internal harness or broken solder joints in valve body
5%
Failed TCM unable to provide or detect solenoid circuit
Diagnostic Steps
1
Step 1: Disconnect solenoid 'G' connector and measure resistance; infinite resistance indicates open solenoid
2
Step 2: Check for continuity between TCM connector and solenoid connector on control wire
3
Step 3: Inspect all connectors for pushed-out pins, broken terminals, or heavy corrosion preventing contact
4
Step 4: Check TCM connector pins for damage or corrosion that could prevent circuit completion
5
Step 5: If external wiring is intact, inspect valve body internal harness and solder joints for breaks
Estimated Repair Cost
$200 - $1,200
Parts + labor, varies by vehicle and location
The TCM has detected an open circuit in the pressure control solenoid 'G' control circuit. This means electrical current cannot flow through the circuit due to a complete break in the wiring or solenoid.
The most common cause of P2812 (Pressure Control Solenoid "G" Control Circuit/Open) is: Open circuit in wiring harness between TCM and solenoid 'G'
Typical repair costs for P2812 range from $200 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Transmission will likely enter fail-safe mode, limiting available gears and vehicle speed. Continued operation may cause additional transmission damage due to improper line pressure.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2812 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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