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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 156 - Downstream Ho2S Shorted To Ground

DTC 156 - Downstream Ho2S Shorted To Ground

NOTE: For component terminal identification, see TERMINAL IDENTIFICATION  in this article. For wiring diagrams, see WIRING DIAGRAMS  section.

Check wiring harness between PCM and downstream HO2S. If wiring is okay, replace PCM.