DTC U0110 Lost Communication with VNT System (4JJ3 without DPD)

1. DTC U0110 description

The ECM and turbocharger internal control unit communicate the control information and diagnosis information via the CAN communication circuit. The ECM monitors the CAN operational status by expecting a constant message flow from each module. If the ECM fails to receive an expected message, the DTC is set.

2. Condition for setting DTC U0110

Condition for running the DTC

The battery voltage is 9 to 16 V.
3 seconds or more have passed since the ignition switch was turned ON.
DTCs U0001 and U0074 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".

Condition for setting the DTC

The ECM detects that CAN messages from the turbocharger internal control unit are not received.

3. Action taken when DTC U0110 sets

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

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

The ECM limits the fuel injection quantity.
The ECM inhibits the turbocharger control.
The ECM inhibits the cruise control.

4. Condition for clearing DTC U0110

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".