DTC P06D6 Sensor Reference Voltage 6 Circuit (4JJ3 with DPD)

1. DTC P06D6 description

The ECM supplies 5 V power to the following sensors via 5 V reference circuit 6. The 5 V reference circuits are independent of each other outside of the ECM but share the bus inside the ECM. Therefore, the whole 5 V reference circuit 6 may be affected by a short circuit in one of the sensor 5 V reference circuits. The ECM monitors the voltage of 5 V reference circuit 6, and if it detects an excessively low or high voltage, the DTC is set.

Charge air cooler temperature sensor 2
Oil level sensor (Oil temperature)

2. Condition for setting DTC P06D6

Condition for running the DTC

The battery voltage is 9 to 16 V.
The ignition switch is ON.

Condition for setting the DTC

The ECM detects that the voltage of 5 V reference circuit 6 is 4.5 V or less, or 5.5 V or more.

3. Action taken when DTC P06D6 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 inhibits the EGR control.
The ECM assumes a default charge air cooler temperature sensor 2 value.

4. Condition for clearing DTC P06D6

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".