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HOMESERVICE MANUALSHYUNDAI1998SONATA BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SYSTEM/COMPONENT TESTSCOMPUTERIZED ENGINE CONTROLSELECTRONIC CONTROL MODULE (ECM)POWER CIRCUITS
1998 Hyundai Sonata Base, Standard

Power Circuits

1998 Hyundai Sonata Base, StandardSECTION 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 SFI control relay. See RELAYS.

ECM GROUND TERMINAL IDENTIFICATION

Application (1) ECM Terminals No.
Accent, Elantra & Tiburon Sonata (2.0L) 6, 28, 34 & 55
ECM Connector
C01-4 1 & 14
C01-5 13
Sonata (3.0L)
ECM Connector
C51-4 1 & 14
(1) See Fig 1-Fig 3 .
ECM POWER TERMINAL IDENTIFICATION

Application (1) ECM Terminals No.
Accent, Elantra & Tiburon Sonata 2.0L 26 & 54
ECM Connector
C01-4 2 & 15
C01-5 2
3.0L
ECM Connector
C51-4 1 & 14
C51-5 2
(1) See Fig 1-Fig 3 .
Fig 1: Identifying ECM Harness Connector (Accent, Elantra & Tiburon)
G97F06325Courtesy of HYUNDAI MOTOR CO.
RENDER: 1.0x

NO RELATED

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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.