Forenza L4-2.0L (2004)
Oxygen Sensor: Technical Service Bulletins
Emissions - OBD O2 Sensor DTC Confirmation Procedure
FORENZA
Section Title: Engine
TSB No. TS 24 10180
Division: Automotive
Category: Technical
SUBJECT:
ON-BOARD DIAGNOSTIC (OBD) SYSTEM DTC CONFIRMATION
PROCEDURE: OXYGEN SENSOR
MODEL(S):
FORENZA, FORENZA WAGON, RENO (RQ420)
YEAR:
2004~2008
CONDITION:
Diagnostic readiness status is "Incomplete".
CAUSE:
Requirements have not been met under the specific vehicle conditions and procedures.
CORRECTION:
Please follow the attached DTC Confirmation Procedures outlining what is required for the readiness status to complete.
Note:
The following specifications and procedures do not relate to any specific repair or failure state, they represent the minimum requirements that the
system must experience during the self diagnostic sequence for this specific component.
The conditions and procedures are exclusive to the model(s) listed above, and apply only to setting the readiness status of the Oxygen Sensor to the
"YES" condition.
Oxygen Sensor
Description
The purpose of this procedure is to satisfy the enable criteria necessary in order to execute the Oxygen Sensor/Heated Oxygen Sensor (025/H025)
System diagnostic. This procedure will set the readiness status to YES. Ensure the vehicle meets the requirements listed in Conditions for Running
before performing this test. Failure to meet the necessary requirements may produce inaccurate test results.
Conditions for Running
Check to make sure that following conditions are satisfied when using this DTC CONFIRMATION PROCEDURE.
> Coolant temp. > 70°C (158°F)
> Ignition voltage > 10 volts
> Runtime > 60 seconds
Diagnostic Aids
>
If the status does not update, the test outlined in this procedure can be repeated until the readiness status updates to YES.
>
The readiness status does not indicate whether the test has passed or failed, only that a decision was made. When all of the diagnostics for a
specific system have run and passed, the readiness status will update to YES. If a test for a specific system has failed, the readiness status will
update to YES, indicating that a determination was made, even if all of the required tests have not run. When a failure occurs, the scan tool will
output the DTC and malfunction indicator lamp (MIL) status.
>
The first failure of a type B DTC does not constitute a final determination of pass or fail, and will not update the readiness status to YES. A
second trip is required, and all the conditions to run must be met in order for the test to run again. These conditions may include a partial to
