P2812 on Cadillac
Pressure Control Solenoid "G" Control Circuit/Open
P2812 on Cadillac vehicles indicates pressure control solenoid "g" control circuit/open. Au7o has documented this code across 1 Cadillac model — most commonly on CT5. This code means the transmission control module detected an open (broken) electrical circuit for pressure control solenoid "G". Pressure control solenoids regulate the hydraulic fluid pressure that applies the transmission's clutches and bands to produce each gear. An open circuit means the module can't properly command that solenoid, which commonly causes harsh shifting, slipping, or limp mode. It is usually an electrical or solenoid fault rather than mechanical wear.
Common Causes of P2812
- •Faulty pressure control solenoid "G"
- •Open or broken wiring in the solenoid circuit
- •Corroded or disconnected connector
- •Damaged internal transmission wiring harness
- •Low or dirty transmission fluid affecting the solenoid
- •Faulty transmission control module
P2812 on Cadillac by Model
Cadillac CT5(1 issue)
- Harsh Shift with P2812 or P2814 from Solenoid-7 Electrical Fault (PIP5799)2020-2021
GM PIP5799 covers 2020-2021 Cadillac CT5 vehicles with the MHS transmission when the check-engine lamp and harsh shifting occur with TCM DTC P2812 or P2814. The listed cause is an electrical fault in transmission-control solenoid valve 7.
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View P2812 across all makes →Frequently Asked Questions
What does P2812 mean on Cadillac?▼
P2812 stands for "Pressure Control Solenoid "G" Control Circuit/Open." This code means the transmission control module detected an open (broken) electrical circuit for pressure control solenoid "G". Pressure control solenoids regulate the hydraulic fluid pressure that applies the transmission's clutches and bands to produce each gear. An open circuit means the module can't properly command that solenoid, which commonly causes harsh shifting, slipping, or limp mode. It is usually an electrical or solenoid fault rather than mechanical wear. On Cadillac specifically, this code is documented across 1 model.
What causes P2812 on Cadillac vehicles?▼
Common causes on Cadillac: Faulty pressure control solenoid "G", Open or broken wiring in the solenoid circuit, Corroded or disconnected connector, Damaged internal transmission wiring harness, Low or dirty transmission fluid affecting the solenoid. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2812 on a Cadillac?▼
Repair costs vary widely depending on the root cause and specific Cadillac model.
Which Cadillac models have P2812 documented?▼
Au7o has documented P2812 on 1 Cadillac model: CT5.