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HOMESERVICE MANUALSHYUNDAI2000SONATA BASE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM & COMPONENT TESTINGCOMPUTERIZED ENGINE CONTROLSENGINE CONTROL MODULE (ECM)POWER CIRCUITS
2000 Hyundai Sonata Base, Automatic

Power Circuits

2000 Hyundai Sonata Base, AutomaticSECTION Power Circuits

Turn ignition on. Check for battery voltage at ECM power terminals. See ECM POWER TERMINAL IDENTIFICATION  table. If battery voltage is not present, check operation of engine control relay. See RELAYS.

ECM POWER TERMINAL IDENTIFICATION

Application (1) ECM Connector Terminals No. (Wire Color)
Accent (2) 12 (ORG/WHT), (3) 44, 45 & 63 (PNK/BLK)
Elantra (2) 26 (RED/WHT) & (3) 54 (RED/WHT)
Tiburon (2) 26 (RED/BLK) & (3) 54 (RED/WHT)
Sonata
2.4L
C44-2 (A/T) (3) 1 (PNK) & 7 (PNK)
C44-2 (A/T) (2) 26 (ORG)
C45-1 (M/T) (3) 12 (PNK) & 25 (PNK)
C45-4 (M/T) (2) 10 (ORG)
2.5L
C94-1 (4) 1 (PNK)
C94-1 (2) 7 (ORG)
C94-1 (3) 8 (PNK) & 9 (PNK)
(1) See Fig 1-Fig 5 .
(2) Memory power.
(3) Battery voltage from ECM control relay.
(4) Power from ignition in START or ON position.
Fig 1: Identifying ECM Harness Connector (Accent)
G00009435Courtesy of HYUNDAI MOTOR CO.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.