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Home › Infiniti › 2003 › FX45 › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics › Diagnostic Tests › DTC P1148: Closed Loop Control Function (Bank 1) Or DTC P1168: Closed Loop Control Function (Bank 2) › Diagnostic Procedure

Diagnostic Procedure

For wiring diagram, see Figure and Figure . For diagnostic procedure, see DIAGNOSTIC PROCEDURE under DTC P0133 OR P0153.