EGR Valve: Testing and Inspection

EGR VALVE INSPECTION [LF]

Resistance Inspection

1. Remove the plug hole plate. Service and Repair

2. Disconnect the battery cover. Removal and Replacement

3. Disconnect the negative battery cable. Removal and Replacement

4. Disconnect the EGR valve connector. Service and Repair

5. Measure the resistance between the EGR valve terminals.





EGR valve resistance





- If within the specification, perform out the "Circuit Open/Short Inspection".
- If not within the specification, replace the EGR valve. Service and Repair

Circuit Open/Short Inspection

1. Disconnect the PCM connector. Service and Repair

2. Inspect the following wiring 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 valve terminal A and PCM terminal 2G
- EGR valve terminal B and PCM terminal 2L
- EGR valve terminal E and PCM terminal 2K
- EGR valve terminal F and PCM terminal 2H
- EGR valve terminal C and main relay
- EGR valve terminal D and main relay

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

- EGR valve terminal A and body ground
- EGR valve terminal A and power supply
- EGR valve terminal B and body ground
- EGR valve terminal B and power supply
- EGR valve terminal C and body ground
- EGR valve terminal D and body ground
- EGR valve terminal E and body ground
- EGR valve terminal E and power supply
- EGR valve terminal F and body ground
- EGR valve terminal F and power supply