Checking the Exhaust System

Test explanation

Step Action Value

Yes 1 Is there an emergency stop switch mounted? - Turn the switch "OFF" and go to step 2.

2 1. Turn the key switch "ON". 2. Crank the engine for 15 sec. 3. Confirm the diagnostic trouble code. Was a diagnostic trouble code detected? Go to diagnosis for the detected diagnostic trouble code.

3 1. Inspect the PCV-LOW circuit between the

ECM and PCV. 2. Correct the circuit as necessary if a problem is detected. Is the action complete? - Go to step 4.

4 1. Inspect whether any of the abnormalities listed below are present. ・ Lag in engine mechanical timing ・ Flywheel installation position problem ・ Excessive clogging in intake air system ・ Excessive clogging in exhaust system 2. Repair as necessary if a problem is detected. Was a problem detected? - Go to step 5.

5 1. Delete the diagnostic trouble code. 2. Turn the key switch "OFF" for at least 10 sec. 3. Start the engine. Was a problem detected?

6 Confirm the diagnostic trouble code. Was a diagnostic trouble code detected? - Go to step 6.

Go to diagnosis for the detected diagnostic trouble code. No

Go to step 2.

Go to step 3.

Go to step 3.

Check repair and go to "Trouble Diagnosis by Service Support".