EGR Boost Control Solenoid: Testing and Inspection

EGR BOOST SENSOR SOLENOID VALVE INSPECTION[L3, AJ]

Airflow Inspection

NOTE:
- Perform the following procedure only when directed.

1.Disconnect the negative battery cable
2.Remove the EGR boost sensor solenoid valve
3.Inspect airflow between each port under the following conditions.
- If not as specified, replace the EGR boost sensor solenoid valve.
- If as specified, perform the "Circuit Open/Short inspection".




Circuit Open/Short Inspection
1. Disconnect the PCM connector.
2. Inspect the following harnesses for open or short circuit. (Continuity check)




Open circuit

If there is no continuity, there is an open circuit. Repair or replace the wiring harness.

- EGR boost sensor solenoid valve terminal B and PCM terminal 1AX
- EGR boost sensor solenoid valve terminal A Main relay terminal C

Short circuit
If there is continuity, there is a short circuit. Repair or replace the wiring harness.

- EGR boost sensor solenoid valve terminal A and power supply.
- EGR boost sensor solenoid valve terminal B and body ground.