2022 HYUNDAI ELANTRA HYBRID fuel pump

08
8-27
BasiC troUBlesHooting gUide
SYMPTOM
PROBABLE CAUSE
Starter won’t function
Engine turns over but will not start
Engine misfires
Engine overheats
Engine stops while driving driving
Fuel consumption is excessive
Brake pedal is spongy
Braking power is insufficient
Steering wheel is heavy
Steering wheel shakes
Steering wheel pulls to one side while driving
Vehicle pulls to one side while braking
Tire wear is abnormal
Charge warning light comes on while driving
Wipers, horn or lights won’t funciton
Battery discharge is excessive
Engine overheating O
Low fuel level O O
Fuel lines clogged O O
Fuel pump defective O O
Strainer clogged O O
Rich mixture O O O Water intrusion into fuel O O O
Coolant leakage OHigh idle speed O
Engine oil insufficient or defective O O
Battery fluid shortage O O
Battery discharged O O O
Battery terminal poor contact O O
Starter or ignition switch malfunction O
Ignition timing incorrect O O O Spark plugs deteriorated O O Spark plugs defective O

09
9-49
Fuse Name Fuse Rating Circuit Protected
FUSEBATTERY C/
FAN 1 15A Battery C/Fan Relay
IEB1 40A IDB Unit, Multipurpose Check Connector
CLUTCH
ACTUATOR 30A Clutch Actuator
POWER
OUTLET 1 40A Power Outlet Relay
EWP 2 10A Auxiliary Electric Water Pump
EWP 1 10A Electric Water Pump
POWER
OUTLET 2 20A Front Power Outlet
DCT 1 40A TCM
DCT 2 40A TCM
REAR
HEATED 40A Rear Heated Relay
B+4 40AICU Junction Block (Power Window Relay,
Fuse - AIR BAG 2, IBU 1, BRAKE SWITCH,
DOOR LOCK, MODULE 1, SUNROOF, IAU, BMS)
HEV ECU 1 10A HPCU
IG3 20A IG3 Relay
TCU 1 10A TCM
FUEL PUMP 20A Fuel Pump Relay
HEV ECU 2 10A HPCU, BMS Control Module
Sub Block FUSE BATTERY C/
FAN 2 10A Battery C/Fan Relay

Maintenance
9-50
Fuse NameFuse Rating Circuit Protected
WIPER
25A Wiper Relay
HORN 15A Horn Relay
IGN COIL 20A Ignition Coil #1~#4
ECU 2 15A ECM
SENSOR 3 10A E/R Junction Block (Fuel Pump Relay)
SENSOR 2 10ACamshaft Position Sensor #1/#2 (Intake/Exhaust), Mass
Air Flow Sensor, ELCM, Oil Control Valve #1/#2 (Intake/
Exhaust), Purge Control Solenoid Valve
ECU 3 10A ECM, HPCU, Clutch Actuator
SENSOR 1 15A Oxygen Sensor (Up/Down)
IEB 4 10A IDB Unit, Multipurpose Check Connector
EWP 3 10A Auxiliary Electric Water Pump
ECU 1 20A ECM
TCU 2 15A Transaxle Range Switch, TCM