P0881 2015 GMC Sierra Code - Transmission Control Module Supply Voltage Performance
Quick Answer
The Transmission Control Module (TCM) requires continuous battery voltage to operate. Common causes include Transmission Control Module (TCM) Power and/or Ground connection, Faulty Transmission Control Module, Transmission Control Module harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0881 2015 GMC Sierra indicates Transmission Control Module Supply Voltage Performance.
- Common causes
- Common causes include Transmission Control Module (TCM) Power and/or Ground connection, Faulty Transmission Control Module, Transmission Control Module harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0881 2015 GMC Sierra Description
What are the Possible Causes of the DTC P0881 2015 GMC Sierra?
- Transmission Control Module (TCM) Power and/or Ground connection
- Faulty Transmission Control Module
- Transmission Control Module harness is open or shorted
- Transmission Control Module circuit poor electrical connection
How to Fix the DTC P0881 2015 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0881 2015 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0881 2015 GMC Sierra code?
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Frequently Asked Questions about P0881 2015 GMC Sierra Code
1. What does the OBDII code P0881 mean on a 2015 GMC Sierra?
P0881 indicates an issue with the Transmission Control Module (TCM) supply voltage, specifically that the voltage is outside the expected performance range.
2. What are common symptoms of code P0881 on a 2015 GMC Sierra?
Common symptoms include harsh or erratic shifting, the transmission being stuck in one gear (limp mode), the check engine light turning on, and reduced fuel efficiency.
3. What causes the P0881 code on a 2015 GMC Sierra?
Possible causes include a faulty TCM, damaged wiring or connectors in the TCM circuit, a malfunctioning power supply relay, or issues with the vehicle's battery or charging system.
4. Can a weak battery cause the P0881 code?
Yes, a weak or failing battery can cause supply voltage issues to the TCM, potentially triggering the P0881 code.
5. How is the P0881 code diagnosed on a 2015 GMC Sierra?
Diagnosis typically involves checking the TCM power and ground circuits, inspecting wiring and connectors for damage or corrosion, testing the battery and alternator, and verifying the performance of the power supply relay.
6. Can I drive my 2015 GMC Sierra with the P0881 code?
It’s not recommended to drive with this code active, as it can lead to transmission issues like limp mode or further damage to the TCM or transmission.
7. How do you fix the P0881 code on a 2015 GMC Sierra?
Repairs may include replacing damaged wiring or connectors, repairing ground connections, replacing the TCM power relay, or addressing issues with the battery or alternator.
8. How much does it cost to fix the P0881 code on a 2015 GMC Sierra?
Repair costs vary depending on the cause but can range from $100 for minor wiring repairs to over $1,000 if the TCM needs replacement.
9. Can a faulty alternator trigger the P0881 code?
Yes, a failing alternator can cause voltage supply issues, leading to the P0881 code being triggered.
10. Do I need to reprogram the TCM after fixing the P0881 code?
In some cases, TCM reprogramming or resetting may be required after repairs, depending on the nature of the issue and the specific repair performed.
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