 1.CHECK GROUND CONNECTION
- Turn ignition switch OFF.
- Check ground connection M95. Refer to Ground Inspection in Circuit Inspection.
Is the inspection result normal?
YES >>GO TO 2. NO >>Repair or replace ground connection.
 2.CHECK CONNECTOR
- Disconnect EVAP control system pressure sensor harness connector.
- Check that water is not inside connectors.
Is the inspection result normal?
YES >>GO TO 3. NO >>Repair or replace harness connector.
 3.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-I
- Turn ignition switch ON.
- Check the voltage between EVAP control system pressure sensor harness connector and ground.
EVAP control system pressure sensor
| Ground
| Voltage (V)
| Connector
| Terminal
| B251
| 3
| Ground
| Approx. 5
|
Is the inspection result normal?
YES >>GO TO 5. NO >>GO TO 4.
 4.DETECT MALFUNCTIONING PART
Check the following. - Harness connectors F103, M116
- Harness for open between ECM and EVAP control system pressure sensor
>>Repair open circuit, short to ground or short to power in harness or connectors.
 5.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.
EVAP control system pressure sensor
| ECM
| Continuity
| Connector
| Terminal
| Connector
| Terminal
| B251
| 1
| F102
| 75
| Existed
|
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >>GO TO 7. NO >>GO TO 6.
 6.DETECT MALFUNCTIONING PART
Check the following. - Harness connectors F103, M116
- Harness for open or short between EVAP control system pressure sensor and ECM
>>Repair open circuit, short to ground or short to power in harness or connectors.
 7.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.
EVAP control system pressure sensor
| ECM
| Continuity
| Connector
| Terminal
| Connector
| Terminal
| B251
| 2
| F102
| 78
| Existed
|
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >>GO TO 9. NO >>GO TO 8.
 8.DETECT MALFUNCTIONING PART
Check the following. - Harness connectors F103, M116
- Harness for open or short between EVAP control system pressure sensor and ECM
>>Repair open circuit, short to ground or short to power in harness or connectors.
 9.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
 10.CHECK INTERMITTENT INCIDENT
|