|
- Disconnect connector, and measure at harness side.
- Ignition switch: "ON"
- Voltage between terminal engine-ECU ALTF line and body earth.
|
|
Q.
Is the check result normal?
|
|
- Check output line for open circuit.
|
|
Q.
Is the check result normal?
|
|
Repair or replace the connector, or repair the damaged harness wire.
|
|
|
|
- Reconfirmation of diagnosis code.
|
|
Q.
Is diagnosis code set?
|
|
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
|
|
|
|
- Check output line for damage.
|
|
Q.
Is the check result normal?
|
|
Repair or replace the connector, or repair the damaged harness wire.
|
|
|
|
- Disconnect engine-ECU connector, and connect special tool power plant ECU check harness (MB992110) to measure at connector for inspection.
- Engine: Idle operation after warm-up
- Transmission: Neutral <M/T> or P range <CVT>
- Radiator fan: Not operated
- Voltage between terminal ALTF and body earth.
|
|
OK: Voltage decreases when the headlamps are extinguished → illuminated.
|
|
Q.
Is the check result normal?
|