Sentra XE L4-1597cc 1.6L DOHC MFI (GA16DE) (1997)
(1) Start engine and run it at least 5 seconds at idle speed.
(2) Turn ignition switch "OFF", wait at least 5 seconds and then turn "ON".
(3) Perform "Diagnostic Test Mode II" (Self-diagnostic results) with ECM.
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When using GST, "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" should be performed twice as much as when using
CONSULT or ECM (Diagnostic Test Mode II) because GST cannot display MODE 7 (1st trip DTC) concerning this diagnosis. Therefore,
using CONSULT or ECM (Diagnostic Test Mode II) is recommended.
DIAGNOSTIC PROCEDURE
COMPONENT INSPECTION
Rear heated oxygen sensor heater
Check the following.