Coolant valve short circuit to ground
â–¶ How to fix
• Measure on the valve V194 between V194-1 and ground. If there is contact, change the valve V194 • Disconnect E81-C and measure on the cable between E81-C11 and ground. If there is contact, change the cable • Change the BMU (E81)
What you'll see
No driver-visible symptom recorded.
System reaction
Forced cooling of battery, heating not possible. If ambient temperature is low, hybrid battery may never reach operation temperature which leads to reduced system performance.
Diagnostic depth
Detection
Electrical diagnosis in the BMU
Possible cause
Component or cable harness damage