Hyundai IONIQ I (2016-2024) sub battery pack Wiring diagrams

BATTERY C/FAN BATTERY C/FAN RELAY BLK WIRE BLU WIRE BMS CONTROL MODULE BRN WIRE C-CAN HIGH C-CAN LOW COMPUTER DATA LINES SYSTEM COOLING FAN FUSE COOLING FAN RELAY E/R JUNCTION BLOCK E/R-A E/R-D ENGINE CONTROL RELAY EWP FUSE GRN WIRE H-CAN HIGH H-CAN LOW HOT AT ALL TIMES LEFT ACTIVE AIR FLAP MAIN BATTERY PACK MAIN BATTERY PACK BLOWER FAN MEMORY PWR MULTI FUSE 1 ON/START INPUT ORG/ WIRE P-CAN HIGH P-CAN LOW PCB BLOCK PNK WIRE PNK/BLK WIRE POWER POWER DISTRIBUTION SYSTEM PWR RED WIRE RED/BLU WIRE RED/ORG WIRE RED/WHT WIRE RELAY CTRL RIGHT ACTIVE AIR FLAP SENSOR 2 FUSE SUB BATTERY PACK SUB BATTERY PACK BLOWER FAN YEL WIRE

A/T SHIFT LEVER INDICATOR AUX, USB JACK AUXILIARY BATTERY BATTERY BATTERY FUSE BLOCK BCM BLK WIRE BLK/WHT WIRE BMS ASSEMBLY BMS CONTROL MODULE CHARGER LAMP COOLING FAN RELAY CRASH PAD SWITCH DATA LINK CONNECTOR DTC SHIFT LEVER E/R-C EXTERNAL BUZZER FORWARD COLLISION AVOIDANCE UNIT FRONT WIPER (LOW) RELAY FRONT WIPER HIGH RELAY FUEL FILLER DOOR, BATTERY CHARGE SWITCH GRY/ORG WIRE HORN (HIGH) HORN (LOW) I/P-E IGNITION KEY ILLUM, DOOR WARNING SWITCH IGPM IGPM IGPM INSTRUMENT CLUSTER IPS CONTROL MODULE LEFT CONSOLE SWITCH LEFT DRL LEFT HEADLAMP LEFT MOOD LAMP LOW VOLTAGE DC-DC CONVERTER LOW-BEAM ASSIST DYNAMIC UNIT MAIN BATTERY PACK MAIN BATTERY PACK BLOWER FAN MOOD LAMP MULTI- FUNCTION SWITCH NCA WIRE PCB BLOCK POWER OUTLET RELAY RIGHT CONSOLE SWITCH RIGHT DRL RIGHT MOOD LAMP STEERING WHEEL HEATER SWITCH SUB BATTERY PACK SUB BATTERY PACK BLOWER FAN VESS UNIT W/ HID W/ PDW W/O PDW W/ SMART KEY W/O SMART KEY WIRELESS CHARGER UNIT

A/V, NAVIGATION HEAD UNIT AMS FUSE AUDIO AUDIO (W/ DISPLAY) BATTERY C/FAN RELAY E/R JUNCTION BLOCK BATTERY SENSOR BLK WIRE BLU WIRE BMS CONTROL MODULE CHARGER LAMP ELECTRIC WATER PUMP (HEV) FROM AMP FUSE (DIAGRAM 3 OF 12) FUEL FILLER DOOR, BATTERY CHARGE SWITCH GRN WIRE HPCU ECM HYBRID POWER CONTROL UNIT I/P-A I/P-C I/P-E I/P-F ICM RELAY BOX IGPM INSTRUMENT CLUSTER IPS CONTROL MODULE OBC FUSE OBC UNIT ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE SUB BATTERY PACK TCM TRANSAXLE RANGE SWITCH W/ NAVIGATION W/O NAVIGATION WHT WIRE

2 WAY ACTIVE HYDRAULIC BOOSTER 3 FUSE AMP AMP FUSE BATTERY C/FAN FUSE BATTERY C/FAN RELAY BATTERY MANAGEMENT FUSE BLU WIRE BMS CONTROL MODULE BRN WIRE DCT 4 FUSE DCT SHIFT LEVER DRIVER IMS MODULE DRIVER SAFETY POWER WINDOW MODULE DRIVER SEAT MANUAL SWITCH E/R JUNCTION BLOCK E/R-A E/R-B E/R-D ECU 2 FUSE ENGINE CONTROL RELAY FROM IGPM (DIAGRAM 6 OF 12) FROM MULTI FUSE-1 (DIAGRAM 1 OF 12) FUEL FILLER DOOR RELAY HORN FUSE HORN RELAY HPCU HPCU 2 FUSE HYBRID POWER CONTROL UNIT I/P-B I/P-C I/P-E IBAU ICM RELAY BOX MULTIPURPOSE CHECK CONNECTOR NCA WIRE ORG/ WIRE P/SEAT (DRV) FUSE P/WINDOW LH FUSE P/WINDOW RH FUSE PASSENGER SAFETY POWER WINDOW MODULE PCB BLOCK PNK WIRE POWER WINDOW LH RELAY POWER WINDOW RH RELAY REAR SEAT WARMER MODULE RED WIRE RED/WHT WIRE S/HEATER REAR FUSE SUB BATTERY PACK SUNROOF FUSE SUNROOF MOTOR TAILGATE OPEN FUSE TAILGATE RELAY TO AMS FUSE (DIAGRAM 12 OF 12) W/ MEMORY W/O MEMORY WHT WIRE

BLK WIRE BLK/ORG WIRE BLU WIRE BMS CONTROL MODULE BRN WIRE C-CAN TRANSCEIVER CHARGE CONNECTOR CHARGE IND CHARGING IND CHARGING INLET COMPUTER DATA LINES SYSTEM CONTROL PILOT COOLING FANS SYSTEM DETECTION EV BATTERY CHARGE IND EXTERNAL CHARGING CABLE IND FUEL FILLER DOOR, BATTERY CHARGE SWITCH GRN WIRE GRY WIRE INSTRUMENT CLUSTER LOW BATTERY IND MAIN BATT - MEMORY PWR MICOM OBC UNIT (BEHIND LEFT SIDE OF FRONT BUMPER) ON/START I/P ORG/ WIRE P-CAN HIGH P-CAN LOW PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY CTRL RESERVE CHARGING SHIELD SUB BATTERY PACK W/ 4.3 INCH TFT LCD W/ 4.3 INCH TFT LCD W/ 7 INCH TFT LCD WHT WIRE YEL WIRE YEL/GRN WIRE

BATTERY CURRENT SENSOR BLK WIRE BLK/ORG WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BMS CONTROL MODULE BRN WIRE BRN/ORG WIRE CABLE GND CABLE SIG CAN HIGH CAN LOW CELL MONITORING COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRASH SIG CURRENT SENSOR FROM EV BATTERY MODULE 12 (DIAGRAM 9 OF 12) FROM EV BATTERY MODULE 6 (DIAGRAM 8 OF 12) FROM POWER RELAY ASSEMBLY (DIAGRAM 4 OF 12) FUSE GRN WIRE GRN/BLK WIRE GRY WIRE H-CAN HIGH H-CAN LOW HIGH VOLTAGE CABLE CONNECTED SENSOR MAIN BATTERY PACK NCA WIRE ORG/ WIRE ORG/BLK WIRE P-CAN HIGH P-CAN LOW PNK WIRE PNK/ORG WIRE POWER RAD SW SIG RAD SWITCH 1 RAD SWITCH 2 RAD SWITCH 3 RED WIRE RED/WHT WIRE RELAY CTRL GND RELAY CTRL MAIN + RELAY CTRL OBC + RELAY CTRL PRE SERVICE PLUG SERVICE PLUG GND SERVICE PLUG SIG SUB BATTERY PACK SUB BATTERY PACK TEMPERATURE SENSOR SUPPLEMENTAL RESTRAINTS SYSTEM TEMP GND TEMP SENS GND TEMP SENS SIG TEMP SIG TO CELL MONITORING UNIT 1 (DIAGRAM 7 OF 12) TO CELL MONITORING UNIT 12 (DIAGRAM 12 OF 12) TO EV BATTERY MODULE 1 (DIAGRAM 7 OF 12) TO EV BATTERY MODULE 13 (DIAGRAM 10 OF 12) TO EV BATTERY MODULE 7 (DIAGRAM 8 OF 12) UNIT 1 OPD HO UNIT 1 OPD LO UNIT 12 OPD HI UNIT 12 OPD LI WHT WIRE WHT/BLK WIRE WHT/ORG WIRE YEL WIRE YEL/ORG WIRE

BATT VOLT SENS MOD 1 BATT VOLT SENS MOD 12 BATT VOLT SENS MOD 13 BATT VOLT SENS MOD 24 BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BMS CONTROL MODULE BMS CONTROL MODULE OPD HI BMS CONTROL MODULE OPD LI BMS CONTROL MODULE RXNL BMS CONTROL MODULE RXPL BMS CONTROL MODULE TXNL BMS CONTROL MODULE TXPL BRN WIRE CELL MONITORING UNIT 1 CELL MONITORING UNIT 1 OPD HI CELL MONITORING UNIT 1 OPD LI CELL MONITORING UNIT 1 RXNH CELL MONITORING UNIT 1 RXNL CELL MONITORING UNIT 1 RXPH CELL MONITORING UNIT 1 RXPL CELL MONITORING UNIT 1 TXNH CELL MONITORING UNIT 1 TXNL CELL MONITORING UNIT 1 TXPH CELL MONITORING UNIT 1 TXPL CELL MONITORING UNIT 2 CELL MONITORING UNIT 2 OPD HO CELL MONITORING UNIT 2 OPD LO CELL MONITORING UNIT 2 RXNH CELL MONITORING UNIT 2 RXPH CELL MONITORING UNIT 2 TXNH CELL MONITORING UNIT 2 TXPH CELL MONITORING UNIT 3 OPD HO CELL MONITORING UNIT 3 OPD LO CELL MONITORING UNIT 3 RXNH CELL MONITORING UNIT 3 RXPH CELL MONITORING UNIT 3 TXNH CELL MONITORING UNIT 3 TXPH EV BATT MOD 3/4 TEMP GND EV BATT MOD 3/4 TEMP SIG EV BATTERY MODULE 1 EV BATTERY MODULE 2 EV BATTERY MODULE 3 EV BATTERY MODULE 4 EV BATTERY MODULE TEMPERATURE SENSOR 2 FROM BMS CONTROL MODULE (DIAGRAM 5 OF 12) FROM EV BATTERY MODULE 12 (DIAGRAM 9 OF 12) FROM HIGH VOLTAGE CABLE CONNECTED SENSOR (DIAGRAM 5 OF 12) FROM POWER RELAY ASSEMBLY (DIAGRAM 4 OF 12) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRY WIRE NCA WIRE ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/ORG WIRE SENS GND SENS SIG SUB BATTERY PACK TEMP TO EV BATTERY MODULE 13 (DIAGRAM 10 OF 12) TO EV BATTERY MODULE 5 (DIAGRAM 8 OF 12) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BRN WIRE CELL MONITORING UNIT 2 OPD HI CELL MONITORING UNIT 2 OPD LI CELL MONITORING UNIT 2 RXNL CELL MONITORING UNIT 2 RXPL CELL MONITORING UNIT 2 TXNL CELL MONITORING UNIT 2 TXPL CELL MONITORING UNIT 3 CELL MONITORING UNIT 3 OPD HI PNK CELL MONITORING UNIT 5 OPD HO WIRE CELL MONITORING UNIT 3 OPD LI CELL MONITORING UNIT 3 RXNL CELL MONITORING UNIT 3 RXPL CELL MONITORING UNIT 3 TXNL CELL MONITORING UNIT 3 TXPL CELL MONITORING UNIT 4 CELL MONITORING UNIT 4 OPD HO CELL MONITORING UNIT 4 OPD LO CELL MONITORING UNIT 4 RXNH CELL MONITORING UNIT 4 RXPH CELL MONITORING UNIT 4 TXNH CELL MONITORING UNIT 4 TXPH CELL MONITORING UNIT 5 OPD LO CELL MONITORING UNIT 5 RXNH CELL MONITORING UNIT 5 RXPH CELL MONITORING UNIT 5 TXNH CELL MONITORING UNIT 5 TXPH EV BATT MOD 5/6 TEMP GND EV BATT MOD 5/6 TEMP SIG EV BATTERY MODULE 5 EV BATTERY MODULE 6 EV BATTERY MODULE 7 EV BATTERY MODULE 8 EV BATTERY MODULE TEMPERATURE SENSOR 3 FROM BATTERY CURRENT SENSOR (DIAGRAM 5 OF 12) FROM EV BATTERY MODULE 4 (DIAGRAM 7 OF 12) GRN/ORG WIRE GRY WIRE NCA WIRE ORG/ WIRE PNK WIRE RED/BLK WIRE RED/ORG WIRE SENS GND SENS SIG SUB BATTERY PACK TEMP TO BATTERY CURRENT SENSOR (DIAGRAM 5 OF 12) TO EV BATTERY MODULE 9 (DIAGRAM 9 OF 12) WHT WIRE YEL/GRN WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BRN WIRE CELL MONITORING UNIT 4 OPD HI CELL MONITORING UNIT 4 OPD LI CELL MONITORING UNIT 4 RXNL CELL MONITORING UNIT 4 RXPL CELL MONITORING UNIT 4 TXNL CELL MONITORING UNIT 4 TXPL CELL MONITORING UNIT 5 CELL MONITORING UNIT 5 OPD HI CELL MONITORING UNIT 5 OPD LI CELL MONITORING UNIT 5 RXNL CELL MONITORING UNIT 5 RXPL CELL MONITORING UNIT 5 TXNL CELL MONITORING UNIT 5 TXPL CELL MONITORING UNIT 6 CELL MONITORING UNIT 6 OPD HO CELL MONITORING UNIT 6 OPD LO CELL MONITORING UNIT 6 RXNH CELL MONITORING UNIT 6 RXPH CELL MONITORING UNIT 6 TXNH CELL MONITORING UNIT 6 TXPH CELL MONITORING UNIT 7 OPD HO CELL MONITORING UNIT 7 OPD LO CELL MONITORING UNIT 7 RXNH CELL MONITORING UNIT 7 RXPH CELL MONITORING UNIT 7 TXNH CELL MONITORING UNIT 7 TXPH EV BATT MOD 11/12 TEMP GND EV BATT MOD 11/12 TEMP SIG EV BATTERY MODULE 10 EV BATTERY MODULE 11 EV BATTERY MODULE 12 EV BATTERY MODULE 9 EV BATTERY MODULE TEMPERATURE SENSOR 6 FROM EV BATTERY MODULE 8 (DIAGRAM 8 OF 12) GRN/ORG WIRE GRY WIRE NCA WIRE ORG/ WIRE PNK WIRE RED/BLK WIRE RED/ORG WIRE SENS GND SENS SIG SUB BATTERY PACK TEMP TO BMS CONTROL MODULE (DIAGRAM 7 OF 12) TO SERVICE PLUG (DIAGRAM 5 OF 12) WHT WIRE YEL/GRN WIRE