P0872 on Chevrolet
Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low
P0872 on Chevrolet vehicles indicates transmission fluid pressure sensor/switch 'c' circuit low. Au7o has documented this code across 1 Chevrolet model — most commonly on Silverado 2500HD. The transmission fluid pressure sensor/switch 'C' circuit voltage is below the expected range (too low / shorted to ground). Typical repair costs on Chevrolet range from $300 to $2,500, depending on the specific model and root cause.
Common Causes of P0872
- •Sensor signal shorted to ground
- •Faulty pressure sensor/switch C
- •Corroded/damaged connector
- •Internal TCM fault
P0872 on Chevrolet by Model
Chevrolet Silverado 2500HD(1 issue)
- Allison 1000 Shift Solenoid Fault and Limp Mode (P0700 With Solenoid Sub-Code)2001-2019
Separate from the well-known torque converter shudder, the Allison 1000 in these trucks is documented for shift solenoid faults that drop the transmission into limp mode. The TCM sets P0700 - a generic 'transmission fault' pointer - accompanied by a specific solenoid code such as P0871 or P0872 (shift solenoid E stuck / on when commanded off). When that code sets, the transmission falls to hydraulic default, the TCM inhibits torque converter clutch engagement, and the truck is left in a single gear, usually third, sometimes refusing to move at all until it is restarted. On a loaded 2500HD this strands the truck. Forum diagnosis repeatedly finds the cause outside the solenoid itself: low or burnt fluid, a loose battery ground, or a chafed harness behind the transmission.
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View P0872 across all makes →Frequently Asked Questions
What does P0872 mean on Chevrolet?▼
P0872 stands for "Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low." The transmission fluid pressure sensor/switch 'C' circuit voltage is below the expected range (too low / shorted to ground). On Chevrolet specifically, this code is documented across 1 model.
What causes P0872 on Chevrolet vehicles?▼
Common causes on Chevrolet: Sensor signal shorted to ground, Faulty pressure sensor/switch C, Corroded/damaged connector, Internal TCM fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0872 on a Chevrolet?▼
Repair costs on Chevrolet range from $300 to $2,500, depending on the specific model and root cause.
Which Chevrolet models have P0872 documented?▼
Au7o has documented P0872 on 1 Chevrolet model: Silverado 2500HD.