DTC P003A Turbocharger Boost Control Solenoid Performance (4JJ3 without DPD)

1. DTC P003A description

The turbocharger internal control unit controls the VGS actuator by the signal sent from the ECM via the CAN communication circuit, and it performs the opening and closing operation of the nozzle vane. Turbocharger internal control unit monitors the operation of the turbocharger. If the turbocharger internal control unit detects a turbocharger malfunction, it sends the information to the ECM. If the ECM detects an abnormal signal from the turbocharger internal control unit, the DTC is set.

2. Condition for setting DTC P003A

Condition for running the DTC

The ignition switch is ON.
The battery voltage is 10 to 16 V.
DTCs U0001, U0074, and U0110 are not set.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC U0001 High Speed CAN Communication Bus".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC U0074 Control Module Communication Bus Off - Local CAN".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC U0110 Lost Communication with VNT System".

Condition for setting the DTC

The ECM detects that the nozzle operating angle is too small or too large.

3. Action taken when DTC P003A sets

Euro4: The ECM illuminates the MIL. Refer to Action taken when DTC sets - Type B (Euro4).
Except Euro4: The ECM illuminates the check engine warning light. Refer to Action taken when DTC sets - Type B (Except Euro4).

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC type definitions".

The ECM inhibits the cruise control.

4. Condition for clearing DTC P003A

Euro4: Refer to Condition for clearing the MIL/DTC - Type A or Type B (Euro4).
Except Euro4: Refer to Condition for clearing the check engine warning light/DTC - Type A or Type B (Except Euro4).

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC type definitions".