Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number8 / 82
Possible causes
- Discharged or weak battery high
- Voltage drop in supply wiring medium
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
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–500 €
- Estimated time: 0.5–2.5 h
- Component: tcm
- Component: battery
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012