P1704: Digital TRS Failed to Transition States in KOEO / KOER
HighPowertrainEngine/Powertrain
What does P1704 mean?
P1704 is a diagnostic trouble code indicating "Digital TRS Failed to Transition States in KOEO / KOER". This code relates to your vehicle's engine/powertrain and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Noticeable change in engine performance
- Unusual sounds or vibrations
- Possible issues with engine/powertrain operation
- Vehicle may enter reduced power mode (limp mode)
Estimated repair cost
Typical range in Australia (parts + labour)
$200 – $1200 AUD
Common causes
- Faulty engine/powertrain component
- Wiring or connector issue in the related circuit
- Failed sensor providing incorrect readings
- Software/calibration issue requiring ECU update
- Related component causing secondary fault
What should you do?
This is a significant issue that should be diagnosed and repaired soon. Avoid long trips or heavy driving until the problem is resolved. Continued driving may cause additional damage.
Get a diagnosis for YOUR car
Code P1704 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.