|
- Refer to Data List Reference Table .
- Item 16: EGR valve position sensor
|
|
Q.
Is the check result normal?
|
|
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunctions ).
|
|
|
|
- Use special tool test harness(MB991658) to connect connector and measure
at pick-up harness.
- Ignition switch: ON
- Voltage between terminal engine-ECU EGR5 line and body earth.
|
|
Q.
Is the check result normal?
|
|
- Disconnect engine-ECU harness, and connect special tool power plant ECU check
harness (MB992291) to measure at connector for inspection.
- Ignition switch: ON
- Voltage between terminal EGR5 and body earth.
|
|
Q.
Is the check result normal?
|
|
Repair or replace the connector, or check
and repair harness between EGR valve assembly connector terminal and engine-ECU connector terminal EGR5.
- Check power supply line for open circuit and damage.
|
|
|
|
- Check power supply line for short circuit.
|
|
Q.
Is the check result normal?
|
|
Repair or replace the connector, or repair the damaged harness wire.
|
|
|
|
- Refer to Data List Reference Table .
- Item 16: EGR valve position sensor
|
|
Q.
Is the check result normal?
|
|
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunctions ).
|
|
|
|
- Disconnect connector, and measure at harness side.
- Ignition switch: ON
- Resistance between terminal engine-ECU EGRE line and body earth.
|
|
OK: Continuity (2 Ω or less)
|
|
Q.
Is the check result normal?
|
|
- Check earthing line for damage.
|
|
Q.
Is the check result normal?
|
|
Repair or replace the connector, or repair the damaged harness wire.
|
|
|
|
- Use special tool test harness (MB991658) to connect connector and measure
at pick-up harness.
- Engine: Idling (after warming up)
- Voltage between terminal engine-ECU EGRP line and body earth.
|
|
Q.
Is the check result normal?
|
|
- Check output line for short circuit.
|
|
Q.
Is the check result normal?
|
|
Replace the EGR valve assembly.
|
|
|
|
Repair or replace the connector, or repair the damaged harness wire.
|
|
|
|
- Disconnect engine-ECU harness, and connect special tool power plant ECU check
harness (MB992291) to measure at connector for inspection.
- Engine: Idling (after warming up)
- Voltage between terminal EGRP and body earth.
|
|
Q.
Is the check result normal?
|
|
Repair or replace the connector, or check
and repair check harness between EGR valve assembly connector terminal and engine-ECU connector terminal
EGRP.
- Check output line for open circuit and damage.
|
|
|