Troubleshooting |
Problem Symptoms Table |
Symptom | Suspected Area |
No blower operation | Blower fuse |
Blower relay | |
Blower motor | |
Power mosfet | |
Blower speed control switch | |
Wire harness | |
No air temperature control | Engine coolant capacity |
Heater control assembly | |
No compressor operation | Refrigerant capacity |
A/C fuse | |
Compressor | |
A/C pressure transducer | |
A/C switch | |
Evaporator temperature sensor | |
Wire harness | |
Vented air not cold | Refrigerant capacity |
Refrigerant pressure | |
Drive belt | |
Compressor | |
A/C pressure transducer | |
Evaporator temperature sensor | |
A/C switch | |
Heater control assembly | |
Wire harness | |
Insufficient cooling | Refrigerant capacity |
Drive belt | |
Compressor | |
Condenser | |
Expansion valve | |
Evaporator | |
Refrigerant lines | |
A/C pressure transducer | |
Heater control assembly | |
No engine idle-up when A/C switch ON | Engine ECM |
Wire harness | |
No air inlet control | Heater control assembly |
No mode control | Heater control assembly |
Mode actuator | |
No cooling fan operation | Cooling fan fuse |
Fan motor | |
Engine ECM | |
Wire harness |
Hyundai Elantra AD (2016-2020) Service Manual: CVVT & Camshaft Description and Operation
Description
Continuous Variable Valve Timing (CVVT) system advances or
retards the valve timing of the intake and exhaust valve in accordance
with the ECM control signal which is calculated by the engine speed and
load.
By controlling CVVT, the valve over-lap or under-lap occurs,
which m ...
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Component Location
1. Auto light sensor2. Head lamps3. Lighting switch (Auto)4. Tail lamps5. BCM (Body Control Module)
...