P0882 GMC Code - Transmission Control Module Supply Voltage Circuit Low Voltage
Quick Answer
The Transmission Control Module (TCM) requires continuous battery voltage to operate. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection. 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
- P0882 GMC indicates Transmission Control Module Supply Voltage Circuit Low Voltage.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection.
- 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 P0882 GMC Description
What are the Possible Causes of the DTC P0882 GMC?
- Faulty Transmission Control Module (TCM)
- Transmission Control Module harness is open or shorted
- Transmission Control Module circuit poor electrical connection
How to Fix the DTC P0882 GMC?
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 P0882 GMC 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.
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Information for Specific GMC Models
- P0882 2014 GMC Sierra — Transmission Control Module Supply Voltage Circuit Low Voltage
- P0882 2015 GMC Sierra — Transmission Control Module Supply Voltage Circuit Low Voltage
- P0882 2016 GMC Sierra — Transmission Control Module Supply Voltage Circuit Low Voltage
- P0882 2017 GMC Sierra — Transmission Control Module Supply Voltage Circuit Low Voltage
- P0882 2018 GMC Sierra — Transmission Control Module Supply Voltage Circuit Low Voltage
Frequently Asked Questions about P0882 GMC Code
1. What does the OBDII code P0882 mean on a GMC vehicle?
P0882 indicates that the Transmission Control Module (TCM) is receiving a lower-than-expected voltage on its power supply circuit.
2. What are the common symptoms of the P0882 code in a GMC?
Symptoms include transmission not shifting properly, limp mode activation, delayed or harsh shifting, and, in some cases, illumination of the check engine light.
3. What causes the P0882 code to appear on a GMC?
Common causes include a blown fuse, faulty TCM relay, damaged wiring or connectors, a weak battery, or issues with the alternator.
4. Can a weak battery trigger the P0882 code?
Yes, a weak or failing battery can cause low voltage to the TCM, triggering the P0882 code.
5. How do I diagnose the P0882 code in a GMC?
Start by checking the battery voltage, inspecting fuses and relays, and examining wiring and connectors for damage or corrosion. Use a multimeter to test the TCM power supply circuit.
6. Is it safe to drive with the P0882 code on a GMC?
Driving with this code is not recommended, as it can limit transmission functionality and potentially cause further damage.
7. What repairs can fix the P0882 code on a GMC?
Repairs may include replacing blown fuses, repairing damaged wiring, replacing a faulty TCM relay, or addressing battery and alternator issues.
8. How much does it cost to repair the P0882 code on a GMC?
Costs vary depending on the cause but can range from $50 for simple fuse or wiring repairs to $500 or more if the TCM or alternator needs replacement.
9. Can the P0882 code be cleared without repairs?
Clearing the code without addressing the underlying issue may cause it to return. Proper diagnosis and repairs are necessary to resolve the problem.
10. What tools are needed to troubleshoot the P0882 code on a GMC?
Tools include an OBDII scanner, a multimeter, and basic hand tools for inspecting and repairing fuses, wiring, and relays.
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