200SX SE L4-1597cc 1.6L DOHC MFI (GA16DE) (1997)
Oxygen Sensor: Testing and Inspection
Rear Heated Oxygen Sensor Heater
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the rear heated oxygen sensor heater corresponding to the engine conditions.
Engine speed (rpm) / Rear heated oxygen sensor heater
Above 3,200 / OFF
Below 3,200 / ON
CONSULT REFERENCE VALUE IN DATA MONITOR MODE
ECM TERMINALS AND REFERENCE VALUE
Specification data are reference values and are measured between each terminal and (43) (ECCS ground).
ON BOARD DIAGNOSIS LOGIC
DIAGNOSTIC TROUBLE CODE DETECTING CONDITION
With Consult
(1) Turn ignition switch "ON" and select "DATA MONITOR" mode with CONSULT.
(2) Start engine and run it at least 5 seconds at idle speed.
OR
With GST
(1) Start engine and run it at least 5 seconds at idle speed.
(2) Turn ignition switch "OFF" and wait at least 5 seconds.
(3) Start engine and run it at least 5 seconds at idle speed.
(4) Select "MODE 3" with GST.
OR
No Tools