1. DTC U010A description
The ECM communicates with the EGR valve and executes EGR control. The ECM sends a request signal to the EGR valve. The ECM receives a response signal from the EGR valve. Both communication signals are sent and received via CAN communication circuit. If the ECM receives an incorrect response signal from the EGR valve, the DTC is set.
2. Condition for setting DTC U010A
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.
- DTC U0074 is not set.
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC U0074 Control Module Communication Bus Off - Local CAN".
Condition for setting the DTC
- The ECM detects that the CAN messages from the EGR valve are not received for 3 seconds or more.
3. Action taken when DTC U010A sets
- The ECM illuminates the MIL. Refer to Action taken when DTC sets - Type A.
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".
- The ECM limits the fuel injection quantity.
- The ECM inhibits the EGR control.
- The ECM inhibits the cruise control.
4. Condition for clearing DTC U010A
- Refer to Conditions for clearing the MIL/DTC - Type A or Type B.
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".