LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 210 (Exhaust System (CUMMINS 5.0L)) >> Periodic Maintenance >> Aftertreatment DPF Regeneration Test >> Initial Check

Initial Check

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Use CONSULT electronic service tool to check for DTCs. If any DTCs are present, follow the corresponding troubleshooting tree before performing any part of this procedure.
    • The fault code troubleshooting tree, in some cases, will refer back to this procedure to complete the diagnostics.
    • Inspection of the exhaust system outlet can reveal the condition of the DPF. The exhaust system outlet should appear clean with little to no exhaust residue/soot buildup.
    • The DPF is not 100 percent efficient. Some accumulation of exhaust residue/soot is normal and does not indicate a malfunctioning DPF.
    • A heavy buildup of exhaust residue/soot can indicate a malfunctioning DPF.

    To determine if the exhaust residue/soot accumulation on the exhaust system outlet is the result of a malfunctioning DPF, perform one of the following:

    • Snap Acceleration Test. Refer to Work Procedure .
    • Clean the last 152 - 254 mm (6 - 10 in) of the exhaust tail pipe of any accumulated soot. Operate the vehicle for one shift or trip and inspect the exhaust system outlet for exhaust residue/soot accumulation.
    • Inspect the after treatment DPF. Refer to Removal and Installation .
scientia non olet · About LEMON Manuals