Powertrain
generic / SAE
P0898
Transmission Control System MIL Request Circuit Low
Voltage on the transmission control system MIL request circuit is below the expected window. Wire shorted to ground or driver low.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number8 / 98
Possible causes
- Wire shorted to ground high
- Driver fault low medium
- Connector pins corroded - high contact resistance low
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: shop recommended
- Estimated cost: 80–400 €
- Estimated time: 0.5–2 h
- Component: mil request circuit
- Component: tcm
- MIL / check engine light
Sources
References
sae:J2012