Code No. P244A: DPF Differential Pressure Too Low




FUNCTION




TROUBLE JUDGMENT


Check Condition
Judgement Criterion

FAIL-SAFE AND BACKUP FUNCTION




PROBABLE CAUSE






DIAGNOSIS PROCEDURE


STEP 1. Check exhaust pressure hose and exhaust pressure pipe.



  • Check the lines between the exhaust differential pressure sensor and the exhaust centre pipe (DPF) (i.e, exhaust pressure hose and exhaust pressure pipe) for disconnection or damage.

Q. Are the check results normal?

Replace the exhaust centre pipe.
Repair or replace the exhaust pressure hose or exhaust pressure pipe.