Circuit/System Verification
- Vehicle in Service Mode.
- Verify that DTC P0AA1, P0AA4, P0AD9, P0ADD, P0AE1, P0AE3, P0D0A, P0D09, P1EBD, P1EC0, or P1EC3 is not set.
- If any DTC is set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If none of the DTCs are set
- If any DTC is set
- Vehicle OFF. Remove the G37 Hybrid/EV Battery Pack Coolant Pump fuse. Set the vehicle Charge Mode to IMMEDIATE. Connect the charge cord set. With the vehicle in Charge Mode, Vehicle in Service Mode.
- Verify the scan tool Hybrid/EV Battery Pack Coolant Temperature Sensor parameter increases 3° C (5.4° F) within 120 s when command the hybrid/EV battery pack coolant heater ON with a scan tool.
- If the Hybrid/EV Battery Pack Coolant Temperature Sensor did not increase 3° C (5.4° F) within 120 s
Refer to Circuit/System Testing.
- Go to next step: If the Hybrid/EV Battery Pack Coolant Temperature Sensor did increase 3° C (5.4° F) within 120 s
- If the Hybrid/EV Battery Pack Coolant Temperature Sensor did not increase 3° C (5.4° F) within 120 s
- All OK.
NOTE:
Other DTCs will set.