ECU voltage supply
â–¶ How to fix
- Check voltage supply EGC4 - Check voltage from vehicle electric system - Check plug connection EGC4
What you'll see
No driver-visible symptom recorded.
System reaction
- Sensors with 5V supply dont work correctly - Engine runs and start bad - Function of the control unit is limited
Diagnostic depth
Detection
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Possible cause
- Internal control unit Voltage supply too large - Reported OverVoltage of VDD5 defect