ECM Control Relay Test (Elantra)
WARNING: This page is about a different car, the 2002 Hyundai XG350, 2002 Hyundai Sonata, 2002 Hyundai Santa Fe, 2002 Hyundai Elantra, and 2002 Hyundai Accent. However, it is still accessible from the selected car via links, so may be relevant.
- Locate and remove ECM control relay, see ENGINE CONTROL RELAY LOCATION table. Using fused jumper wire, apply battery voltage to relay terminal No. 2. Using second fused jumper wire, ground relay terminal No. 4 (component side). See Fig 1, and go to next step.
- With relay energized, check for continuity between relay terminals No. 1 and 5 (component side). Continuity should be present until voltage is disconnected. If continuity is not as specified, replace relay.