P0880 on Chevrolet
TCM Power Input Signal
P0880 on Chevrolet vehicles indicates tcm power input signal. Au7o has documented this code across 1 Chevrolet model — most commonly on Silverado 3500HD. This code sets when the transmission control module (TCM) does not receive the correct power/voltage on its power input circuit. The TCM needs a stable supply to control shifting, so a power-feed problem can cause it to lose control of the transmission. Symptoms include erratic or failed shifting, the transmission dropping into failsafe/limp mode, and sometimes disabled related functions. The problem is typically in the TCM's power supply circuit (fuse, relay, or wiring) rather than the transmission internals. Typical repair costs on Chevrolet range from $800 to $1,800, depending on the specific model and root cause.
Common Causes of P0880
- •Faulty TCM power relay
- •Blown fuse on the TCM power circuit
- •Corroded, loose, or damaged power/ground wiring or connectors
- •Poor ground connection
- •Low system/battery voltage or charging fault
- •Internal TCM power-supply fault
- •Faulty TCM (less common)
P0880 on Chevrolet by Model
Chevrolet Silverado 3500HD(1 issue)
- Allison 1000 Transmission TCM Internal Failure2006-2019
The Transmission Control Module (TCM) mounted internally on the Allison 1000 transmission fails due to heat exposure and vibration. The internal TCM is bathed in transmission fluid and subjected to extreme temperatures. When it fails, the transmission goes into limp mode or refuses to shift from 3rd gear.
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View P0880 across all makes →Frequently Asked Questions
What does P0880 mean on Chevrolet?▼
P0880 stands for "TCM Power Input Signal." This code sets when the transmission control module (TCM) does not receive the correct power/voltage on its power input circuit. The TCM needs a stable supply to control shifting, so a power-feed problem can cause it to lose control of the transmission. Symptoms include erratic or failed shifting, the transmission dropping into failsafe/limp mode, and sometimes disabled related functions. The problem is typically in the TCM's power supply circuit (fuse, relay, or wiring) rather than the transmission internals. On Chevrolet specifically, this code is documented across 1 model.
What causes P0880 on Chevrolet vehicles?▼
Common causes on Chevrolet: Faulty TCM power relay, Blown fuse on the TCM power circuit, Corroded, loose, or damaged power/ground wiring or connectors, Poor ground connection, Low system/battery voltage or charging fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0880 on a Chevrolet?▼
Repair costs on Chevrolet range from $800 to $1,800, depending on the specific model and root cause.
Which Chevrolet models have P0880 documented?▼
Au7o has documented P0880 on 1 Chevrolet model: Silverado 3500HD.