Hyundai Ioniq (AE): AHB(Active Hydraulic Boost) System / Schematic diagrams

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Brake System / AHB(Active Hydraulic Boost) System / Schematic diagrams

Terminal Function
IBAU Connector Input / Output

No
Description
No
Description
1
E/R Fuse & Relay Box
(Multi Fuse - AHB)
24
Electric Parking Brake Switch
(Auto Hold Swutch)
2
PSU Motor (+)
25
-
3
-
26
Parking Brake Switch
4
Shield Cable Ground
27
Rear Wheel Sensor LH (SIG)
5
E/R Fuse & Relay Box
PSU Motor (GND)
28
Front Wheel Sensor LH (SIG)
6
Brake Pedal Module (PDT PWR) 
29
Driver Door Switch
7
Brake Pedal Module (PDF PWR)
30
E/R Fuse & Relay Box
(Multi Fuse - AHB 2)
8
E/R Fuse & Relay Box
(Stop Signal Electronic Module)
31
Brake Pedal Module (PDF GND)
9
-
32
-
10
Brake Pedal Module (PDT GND)
33
Rear Wheel Sensor LH (VCC)
11
Shield Cable Ground
34
Rear Wheel Sensor RH (VCC)
12
-
35
-
13
PSU Motor (-)
36
Brake light switch
14
Ground 
37
-
15
-
38
C-CAN (High)
16
Crash Pad Switch (ESC OFF Switch)
39
C-CAN (Low)
17
Front Wheel Sensor LH (VCC)
40
Vehicle Speed :
Smart Key Control Module, PCM
18
Front Wheel Sensor RH (VCC)
41
-
19
P-CAN (High)
42
Front Wheel Sensor RH (SIG)
20
P-CAN (Low)
43
Rear Wheel Sensor RH (SIG)
21
ESS Drive
44
Stop Lamp Switch
22
Brake Pedal Module (PDT SIG)
45
- 
23
Brake Pedal Module (PDF SIG)
46
Ground (GE06)

    Components1. Intergrated Brake Actuation Unit 2. Pressure Source Unit

    AHB Brake System Bleeding ProcedureAir Bleeding Tool Installation Procedure    â€¢ To prevent the brake fluid reservoir tank from beingdamaged and ensure the safety of worker, set thepressure of the gauge to the standard value beforeinstalling the SST.

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: A/C Pressure Transducer. Description and operation

    DescriptionThe A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed. Engine ECU stops the operation of the compressor when the temperature of refrigerant line is very high or very

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Evaporator Core. Repair procedures

    Replacement1.Disconnect the negative (-) battery terminal. 2.Remove the heater and blower assembly.(Refer to Heater - "Heater Unit") 3.Remove the evaporator core cover (A) after loosening the mounting screws.4.Pull out the evaporator temperature sensor (A) from the evaporator core.

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