Nissan Qashqai K9K — P0488 engine trouble code

DTC DETECTION LOGIC

DTC No. Trouble diagnosis name Possible cause
P0488 EGR VOLUME CONTROL
• 1.DEF: Signal incoherence
• 2.DEF: Signal outside lower level
• 3.DEF: Signal outside upper level
• 4.DEF: Valve outside level
• 5.DEF: Defective sensor
• Harness or connectors (The EGR volume control valve circuit is open or shorted.) (The EGR volume control valve control position sensor circuit is open or shorted.)
• EGR volume control valve
• EGR volume control valve control position sensor
• Incorrect EGR volume control valve installation
• EGR volume control valve stuck closed
• EGR passage clogged

NOTE:

• Conditions for applying the diagnostic procedure to the stored DTCs: The DTC is declared present after the engine is started.

• Special notes:

— Engine instability, possibly even stalling.

— Difficult to start engine or even impossible when cold.

— Loss of performance.

— Possible smoke emissions.

— Malfunction indicator (Red) lights up.