Coolant Pump RES CAN node timeout
• Check that E81-B is connected. • Check that E81-B11 have contact with M38-A1 and that E81-B14 have contact with M38-A6. • Check that M38-A and M38-B are connected. •For FPC1(A) - Check that the Coolant pump is connected to C438 pin 8 and 11. •For FPC1(B) - Check that the Coolant pump is connected to C438 pin 4 and 10. - Check that the C443 is connected pin 16 and 17. • Change the Coolant Pump RES (M38)
What you'll see
No driver-visible symptom recorded.
System reaction
• Coolant Pump RES runs for 100% • Amber warning lamp "Hybrid System Fault" is shown in ICL
Diagnostic depth
The DTC is set active if CAN message from the Coolant Pump RES has been absent for 200 ms. The DTC is set inactive when Coolant Pump RES CAN message is received. The DTC is not set in the following cases: • ignition is turned off • first 2 seconds after ignition on • system voltage is below 22 volt • system voltage is above 32 volt • short circuit or open circuit on the RES CAN bus (separate DTCs)
• Bad connection to the pump • Pump disconnected from the RES CAN-bus • Pump is faulty