2002 Hyundai Accent GL, AutomaticFACTORY OEM SERVICE PROCEDURE

ECM Control Relay Test (Sonata 2.4L & XG350)

  1. Locate and remove ECM control relay, see ENGINE CONTROL RELAY LOCATION  table. Using fused jumper wire, apply battery voltage to relay terminal No. 8. Using second fused jumper wire, ground relay at terminal No. 6 (component side). See Fig 1, and go to next step.
  2. With relay energized, check for continuity between relay terminals No. 4 and 3, also relay terminals No. 4 and 2 (component side). Continuity should be present until voltage is disconnected. If continuity is present, go to next step. If continuity is not present, replace relay.
  3. Using fused jumper wire, apply battery voltage to relay terminal No. 7. Using second fused jumper wire, ground relay at terminal No. 5 (component side). With relay energized, check for continuity between relay terminals No. 1 and 7 (component side). Continuity should be present until voltage is disconnected. If continuity is not present, replace relay.
Fig 1: Identifying ECM Control Relay 8-Pin Connector
G99A03471Courtesy of HYUNDAI MOTOR CO.
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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.
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  • • 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.

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