Hyundai Elantra AD Quiz
Heating, Ventilation, and Air Conditioning

Heater and A/C Control Unit (Manual) Components and Component Location

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 9Engine Mechanical System — 84Engine Electrical System — 60Emission Control System — 24Engine Control System/Fuel System — 90Automatic Transmission — 92Drive Shaft and Axle — 20Suspension System — 31Steering — 20Restraints — 50Brake System — 63Body (Interior and Exterior) — 214Body Electrical System — 221Heating, Ventilation, and Air Conditioning — 71
~1min read

Components

Connector Pin No. Function Connector Pin No. Function
A 1 Low B 18 ILL- (REO)
2 General 19 Sensor Ground
3 Ground 20 Ground
4 Medium Low 21 Battery (+)
5 Medium High 22 ISG DK
6 High 23 ISG B+
B 1 IGN2 24 ILL+ (TAIL)
2 PAB IGN1 25 REF Sensor (+5V)
3 HTD (Rear Defogger Indicator) 26 EVAP Sensor (+)
4 Latch Out (-) 27 AMB Sensor (+)
5 PTC Relay 2 28 Mode Control Actuator (Feedback)
6 PTC Relay 3 29 Temperature Control Actuator (Feedback)
7 PTC Signal 30 Intake Actuator (Feedback)
8 PAB Off Signal 31 Mode Control Actuator (Vent)
9 SBR 32 Mode Control Actuator (Def)
10 Rear SBR [Left] 33 Temperature Control Actuator (Cool)
11 Rear SBR [Center] 34 Temperature Control Actuator (Warm)
12 Rear SBR [Right] 35 Intake Actuator (Fresh)
13 ECV+ 36 Intake Actuator (Recirculation)
14 ECV- (Ground) 37 C_CAN High
15 Max. Fan Signal 38 C_CAN Low
16 Rear Window Heater Switch (On) 39 Common Fan Signal
17 Hazard Signal 40 Ground

Test yourself

A quick Hyundai Elantra AD quiz: every answer comes with an explanation and a link to the manual page.