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Home >> Infiniti >> 2001 >> QX4 RWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls Self-Diagnostics - 3.5 >> Self-Diagnostic System >> Clearing Diagnostic Trouble Codes

Clearing Diagnostic Trouble Codes

NOTE: If battery is disconnected for a prolonged period of time, all diagnostic information is cleared.

Turn ignition off. Connect scan tool to DLC. See Figure. Turn ignition on. Enter CLEAR CODES or Mode 4 on scan tool.