• Battery voltage : 13V or above
• Engine : Running
• Ambient temperature and coolant temperature
1.Entering
(1)Set the mode to FLOOR.
(2)Set the temperature to MAX HOT.
(3)Turn off the blower switch.
(4)Press the intake (recirculation) button 5 times or more.
2.Forced operation
(1)Non-A/C : The intake button indicator will blink with an interval of 0.5 second for 30 seconds.With A/C : The intake and A/C button indicator will blink with an interval of 0.5 second for 30 seconds.
(2)The PTC2 and PTC3 will operate by turning on the blower switch.
– The PTC will operate by turning on the blower switch.
– The PTC will turn off simultaneously when the blower switch is turned off.
3.Cancellation
(1)Select A/C or intake (recirculation) switch.
(2)The test cancels automatically after 30 seconds.
(3)Turn the ignition switch off.
1.Run the engine.
2.Check the current on the wiring with a clamp multi tester.
Pattern | Current (A) |
PTC 1 ON | 0.1 ~ 49 |
PTC 2 ON | 0.1 ~ 49 |
Total | 0.1 ~ 100 |
3.If the current is not within specification, inspect the related wiring.
1.Turn the ignition switch OFF.
2.Disconnect the PTC heater connector.
3.Measure the resistance between terminal 1, 2 of PTC heater and ground line.
Resistance : 0.3 - 1.5Ω
1)PTC 1
2)PTC 2
4.If the measured resistance is not within specification, replace the PTC heater with a new one.
1.Disconnect the negative (-) battery terminal.
2.Remove the heater and blower assembly.(Refer to Heater - "Heater Unit")
3.Loosen the mounting screws and remove the PTC heater (A).
4.Install in the reverse order of removal.
• Make sure the connector is connected properly.
Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Start/Stop Button
- Component
- Removal
1.Disconnect the negative (-) battery terminal.
2.Remove the cluster fascia panel.(Refer to Body - "Cluster Fascia Panel")
3.Remove the front monitor.(Refer to AVN System - "Front Monitor")
4.Using a remover and remove the crash pad garnish [CTR].
5.Disconne ...
Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Repair procedures
- Removal
1.Disconnect the negative (-) battery terminal.
2.Remove the heater control unit.(Refer to Heating, Ventilation And Air Conditioning - "Heater Control Unit")
3.Remove the IBU (A) after loosening mounting bolt, nut and screw.
4.Disconnect IBU connectors and then remove the IBU (A) ...