nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Diagnostic Trouble Code Tests and Associated Procedures|Page 1409 > < Diagnostic Trouble Code Tests and Associated Procedures
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ON BOARD DIAGNOSIS LOGIC 
To judge the malfunction, the diagnosis checks that the front heated oxygen sensor output is not inordinately high.

DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE 

NOTE:  If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch "OFF"
and wait at least 5 seconds before conducting the next test.

Without Scan tools 

(1) Turn ignition switch "ON" and wait at least 5 seconds.
(2) Turn ignition switch "OFF" and wait at least 5 seconds.
(3) Perform "Diagnostic Test Mode II (Self-diagnostic results) with ECM.

Diagnostic Trouble Code Tests and Associated Procedures|Page 1409 > < Diagnostic Trouble Code Tests and Associated Procedures