Detecting Condition

DETECTING CONDITION

DIAGNOSTIC TROUBLE CODE DETECTION DRIVING PATTERN




Open Or Short In Main Heated Oxygen Sensor
The purpose of the driving pattern is to simulate diagnostic trouble code detecting condition after diagnostic trouble code is recorded and to check that the malfunction is corrected when the repair is completed confirming that diagnostic trouble code is no longer detected.

HINT: Before this test, check the feedback voltage for oxygen sensor.

1. Disconnect the EFI fuse (20A) for 10 sec. or more with IG switched OFF.
Initiate test mode (Connect terminal TE2 and E1 of data link connector 1 or 2 with IG switched OFF).
2. Start engine and warm up.
3. Idle the engine for 3 min.
4. Quickly race the engine to 4,000 rpm 3 times by accelerator pedal.
5. Race the engine at 2,000 rpm for 90 sec.

HINT: If a malfunction exists, the malfunction indicator lamp will light up during step (4).

NOTICE: If the conditions in this test are not strictly followed, detection of the malfunction will not be possible.




Open Or Short In Injector Circuit, Injector Leak Or Blockage
The purpose of the driving pattern is to simulate diagnostic trouble code detecting condition after diagnostic trouble code is recorded and to check that the malfunction is corrected when the repair is completed confirming that diagnostic trouble code is no longer detected.

1. Disconnect the EFI fuse (20A) for 10 sec. or more with IG switched OFF.
Initiate test mode (Connect terminal TE2 and E1 of data link connector 1 or 2 with IG switched OFF).
2. Start engine and warm up it with all accessories switched OFF.
3. Let the engine idle for 5 min. (After the engine is started, do not depress the accelerator pedal.)
4. If the malfunction is not detected during idling, race the engine without any load at approx. 2,000 rpm for 60 sec.

HINT: If a malfunction exists, the malfunction indicator lamp will light up during the 5 min. idling period or within 60 sec. of starting racing.

NOTICE: if the conditions in this test are not strictly followed, detection of the malfunction will not be possible.




WIRING DIAGRAM