OBD-II code · Powertrain (generic)
P0882 TCM Power Input Signal Low
TCM main supply voltage falls below the operating threshold for an extended period, causing reset risk and unreliable shift control.
Is it safe to drive with P0882?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyDischarged or weak battery
- PossibleVoltage drop in supply wiring
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Tcm, Battery, Wiring Harness
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.