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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 108 (Engine Control System Diagnosis - 1.6L (2 Of 3) - Optima (Except HEV)) >> DTC P0230: Fuel Pump Primary Circuit >> Wiring Inspection >> Fuel Pump Relay Circuit Inspection

Fuel Pump Relay Circuit Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Ignition "OFF" and disconnect ECM connector.
  2. Measure voltage between Pin No. 27 (Relay control) terminal of ECM harness connector and chassis ground. (Measure the control circuit while turn the ignition switch "OFF" to "ON".) - (W/O Smart key/Immobilizer)
  3. Measure voltage between Pin No. 90 (Relay control) terminal of ECM harness connector and chassis ground. (Measure the control circuit while turn the ignition switch "OFF" to "ON".) - (With Smart key/Immobilizer)

    Specification:  Approx. 0V →12V

  4. Is the measured voltage within specification?

    YES 

    NO 

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