EEC battery supply voltage differ from EMS battery supply voltage.
â–¶ How to fix
Using the diagnostic tool, check the reported battery voltage from the EMS (E44) and the EEC (E67). If they are significantly different, use a multimeter to measure the actual battery voltage. If the actual battery voltage differs significantly from the voltage measured by either control unit (EMS or EEC), inspect the harness and connector for the battery supply voltage to that control unit.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The voltage measured by the EMS control unit (E44) is higher than that measured by the EEC control unit (E67).
Possible cause
Faulty cables or connector Faulty EMS (E44) or EEC (E67) control unit