ECM Control Relay (Optima & Magentis (Canadian) 2.4L)

1. Remove ECM control relay located in vehicle right side of dash. See Fig 1. Check for continuity between relay terminals No. 1 and No. 3. See Fig 2. If continuity does not exist, go to next step. If continuity exists, replace relay.
2. Check for continuity between relay terminals No. 4 and No. 6. See Fig 2. If continuity does not exist, go to next step. If continuity exists, replace relay.
3. Connect a jumper wire between positive battery terminal and relay terminal No. 5. Connect another jumper wire between negative battery terminal and relay terminal No. 7. Check continuity between relay terminals No. 1 and No. 3. If continuity exist, go to next step. If continuity does not exist, replace relay.
4. Connect a jumper wire between positive battery terminal and relay terminal No. 6. Connect another jumper wire between negative battery terminal and relay terminal No. 8. Check for battery voltage at terminal No. 4 . Voltage should exist. If battery voltage does not exist, replace relay.

Fig 1: Locating ECM Control, Fuel Pump & Main Relays (Optima & Magentis (Canadian) 2.4L & 2.7L)

Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: Identifying ECM Control Relay, Connector & Terminals (Optima & Magentis (Canadian) 2.4L)

Courtesy of KIA MOTORS AMERICA, INC.