Hyundai Ioniq: Hybrid Control System / HCU (Hybrid Control Unit). Repair procedures
| •
| Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries. |
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| 1. | Refer to "HPCU". | •
| The HCU is integrated into the HPCU that can’t be disassembled. So refer to "HPCU" for the removal or installation procedure of the HCU. |
|
|
| •
| Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries. |
|
| 1. | Refer to "HPCU". | •
| The HCU is integrated into the HPCU that can’t be disassembled. So refer to "HPCU" for the removal or installation procedure of the HCU. |
|
|
| 2. | Perform the clutch pressure sensor calibration. (Refer to "Clutch Pressure Sensor") |
HCU Terminal and Input / Output SignalTerminal FunctionConnector [C133-S]
Pin No
Description
Connected to
1HCU GroundChassis ground2HCU GroundChassis ground3HCU GroundChassis ground4Battery power (B+)Battery5Battery power (B+)Battery6Battery power (B+)Battery7- 8- 9- 10- 11- 12- 13- 14- 15Brake Switch 2 signal inputBrake Switch (NC, IG1)16Brake Switch 1 signal inputBrake Switch (NO, B+)17- 18- 19- 20- 21- 22- 23- 24- 25- 26- 27- 28- 29- 30- 31-32-33-34- 35- 36- 37- 38Start signal inputSmart Key Unit39- 40- 41- 42- 43- 44- 45- 46- 47- 48- 49- 50- 51- 52- 53- 54- 55- 56- 57- 58- 59- 60- 61- 62- 63- 64- 65- 66- 67- 68- 69- 70- 71- 72- 73IGN signal inputSmart Key Unit74- 75- 76- 77- 78Powertrain CAN [High] signal inputOther control modules79Powertrain CAN [Low] signal inputOther control modules80- 81Hybrid CAN [High] signal inputOther control modules82Hybrid CAN [Low] signal inputOther control modules83- 84- 85- 86- 87- 88- 89- 90- 91- 92- 93- 94- Input/Output signalConnector [C133-S]
Pin no
Description
Condition
Type
Level
1HCU GroundAlwaysDC VoltageMax...
DescriptionThe Brake Switch is installed on the brake pedal and linked with the HCU and stop lamp. It sensors the status of the brake pedal (Release, Push) and transmits the signal to the HCU...
Other information:
Ready Indicator
This indicator illuminates :
When the vehicle is ready to be driven.
- ON : Normal driving is possible.
- OFF : Normal driving is not possible, or a problem has occurred.
- Blinking : Emergency driving.
When the ready indicator goes OFF or blinks, there is a problem with the system...
DescriptionInstalled in exhaust manifold, the Exhaust Gas Temperature Sensor (EGTS) #1 for EWGA senses the temperature of exhaust gas flowing into the EWGA.Installed in Gasoline Particulate Filter (GPF) assembly, the Exhaust Gas Temperature Sensor (EGTS) #2 for DPF senses the temperature of exhaust gas flowing into the GPF...
Categories
Adjusting the side mirrors:
1. Press either the L (driver's side) or R (passenger's side) button (1) to select
the side view mirror you would like to adjust.
read more
HCU (Hybrid Control Unit). Schematic diagrams
Brake Switch. Description and operation