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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.
Fig 2: Identifying ECM Harness Connector (Elantra & Tiburon)
G97F06325Courtesy of HYUNDAI MOTOR CO.
Fig 3: Identifying ECM Harness Connectors (Sonata 2.4L A/T)
G00009437Courtesy of HYUNDAI MOTOR CO.
Fig 4: Identifying ECM Harness Connectors (Sonata 2.4L M/T)
G00009438Courtesy of HYUNDAI MOTOR CO.
Fig 5: Identifying ECM Harness Connectors (Sonata 2.5L)
G99G03474Courtesy of HYUNDAI MOTOR CO.