DTC 0308

* The closed loop control has the one trip detection logic.






ON BOARD DIAGNOSIS LOGIC



DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE


CAUTION:
- Always drive vehicle at a safe speed.
- 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.
- Never raise engine speed above 3,600 rpm (A/T), 4,000 rpm (M/T) during the "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE". If the engine speed limit is exceeded, retry the procedure from step 2).



OVERALL FUNCTION CHECK
Use this procedure to check the overall function of the closed loop control. During this check, a 1st trip DTC might not be confirmed.






Without TOOLS
1) Start engine and warm it up to normal operating temperature.
2) Set voltmeter probes between ECM terminal LH, (51) RH, (50) (sensor) and (32) (ECM ground).
3) Check the following with engine speed held at 2,000 rpm constant under no-load.
- The voltage should go above 0.61V at least once.

- - - OR - - -

- The voltage should go below 0.23V at least once.


DIAGNOSTIC PROCEDURE
For left bank
Refer to TROUBLE DIAGNOSIS FOR DTC P0130.
DTC 0303



For right bank
Refer to TROUBLE DIAGNOSIS FOR DTC P0150.
DTC 0503