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Home >> Mitsubishi >> 1996 >> Eclipse Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.0L Non-Turbo >> Circuit Tests >> DTC 20 - Injector No. 2 Control Circuit Failure
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DTC 20 - Injector No. 2 Control Circuit Failure

NOTE: For component terminal identification, see TERMINAL IDENTIFICATION  in this article. For wiring diagrams, see WIRING DIAGRAMS  section.
  1. Using scan tool, perform ACTUATOR TEST No. 10 (MFI relay). If MFI relay operation can be heard, go to next step. If MFI relay operation cannot be heard, repair MFI relay circuit.
  2. Disconnect injector harness connector. Check resistance between injector terminals. If resistance is 11-15 ohms at 68°F (20°C), go to next step. If resistance is not as specified, replace injector.
  3. Connect DVOM between injector connector terminal No. 2 (Black/Red wire) and ground. Using scan tool, perform ACTUATOR TEST No. 10 (MFI relay). MFI relay is cycled on and off every 1.4 seconds.
  4. If battery voltage exists when MFI relay is on, go to next step. If battery voltage does not exist when MFI relay is on, check wiring harness and junction connectors between MFI relay and injector connector.
  5. Reconnect injector connector. Disconnect PCM connector. Connect DVOM between PCM connector terminal No. 23 (Yellow/Red wire) and ground. Using scan tool, perform ACTUATOR TEST No. 10 (MFI relay). MFI relay is cycled on and off every 1.4 seconds.
  6. If battery voltage exists, check PCM connector. If PCM connector is okay, replace PCM. If battery voltage does not exist, check injector connector, junction connector and wiring harness between PCM and injector connector.
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