Hyundai Santa Fe (TM): 4WD Control System / Flow diagram
| Power Flow Diagram |
| 4WD ECU Input&Output Diagram |
Components Location 1. 4WD ECU 2. Luggage side trim [Left side]
Circuit Diagram 4WD ECU Connector 4WD ECU Pin Function Pin Function 1 Motor B 2 Motor A 3 - 4 - 5 Pressure sensor (power) 6 - 7 IG1 8 Motor shield wire ground 9 Battery ground 10 Battery power 11 - 12 - 13 - 14 Pressure sensor signal 15 Pressure sensor ground 16 - 17 CAN 1 HIGH 18 CAN 1 LOW 19 CAN 2 HIGH
Other information:
Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: PTC Heater (Diesel only). Description and operation
Description The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core. The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective diesel engine.
Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: PTC Heater (Diesel only). Repair procedures
Inspection Operating Logic Test (Manual only) Inspect the PTC operation with the confirmation logic below : 1. Entering (1) Set the mode to FLOOR. (2) Set the temperature to MAX HOT.