ECD SYSTEM, Diagnostic DTC:P2002

DTC Code DTC Name
P2002 Particulate Trap Efficiency Below Threshold (Bank 1)

DESCRIPTION

A295958E03
Tip:

  • For more information on the Diesel Particulate Filter (DPF) catalytic converter, refer to the following procedures.

    Click here

  • If P2002 is present, refer to the DTC table for Diesel Particulate Filter System.

    Click here

Tip:

The DPF catalyst has an ability to reduce particulate matter (PM), hydrocarbons (HC) and carbon monoxides (CO). The DPF catalyst is a monolithic type catalyst. Alternating passages in the catalyst have either their inlet or outlet blocked. This forces the exhaust gasses to flow through the walls of the passages (see illustration above). Due to the flow of the exhaust gasses through micro-cavities in the passage walls, it is called a "wall flow" type converter.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P2002

Particulate Trap Efficiency Below Threshold (Bank 1)

The catalyst record exceeds the threshold (Thermal deterioration malfunction) (1 trip detection logic).

DPF catalytic converter (Exhaust manifold converter sub-assembly)

Comes on

DTC stored
Table 1. Related Data List

DTC No.

Data List

P2002

DPF Thermal Deteriorate

MONITOR DESCRIPTION

In order to detect abnormality in the DPF catalytic converter, the ECM monitors the exhaust gas temperature as well as differential pressure in front of and behind the DPF catalyst.

  • Thermal deterioration malfunction

  • Furthermore, the ECM calculates and integrates the Catalyst Record of catalyst thermal deterioration data with the catalyst temperature. If Catalyst Record exceeds the threshold, the ECM interprets this as a malfunction in the DPF catalyst and illuminates the MIL.

A193875E07

CAUTION / NOTICE / HINT

Note:

After replacing the exhaust manifold converter sub-assembly (DPF catalyst), clear the thermal deterioration data stored in the ECM.

Click here

Tip:

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE

  1. REPLACE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY

    Tip:

    When the DPF catalytic converter (exhaust manifold converter sub-assembly) is replaced, the catalyst record of DPF thermal deterioration stored in the ECM must be cleared.

    1. Replace the DPF catalytic converter (exhaust manifold converter sub-assembly).

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  2. PERFORM CATALYST RECORD CLEAR

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Enter the menu options in this order: Powertrain / Engine and ECT / Utility / Catalyst Record Clear.

      Powertrain > Engine > Utility

      Tester Display

      Catalyst Record Clear

    Result

    Proceed to

    NEXT
    NEXT

    END