2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 494
Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E108, M15
- Harness connectors F102, M72
- Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R
- Harness for open or short between EVAP canister purge volume control solenoid valve and ECM
- Repair open circuit, short to ground or short to power in harness or connectors.
3.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT
FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVAP canister purge volume control solenoid valve harness connector and
ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES - GO TO 4.
NO - Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check that water is not inside connectors.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace EVAP control system pressure sensor.
5.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
See: P Code Charts/P0451.
Is the inspection result normal?
YES-1 - With CONSULT-III: GO TO 6.
YES-2 - Without CONSULT-III: GO TO 7.
NO - Replace EVAP control system pressure sensor.
6.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-III
1. Turn ignition switch OFF.
2. Reconnect harness connectors disconnected.
3. Start engine.
4. Perform "PURG VOL CONT/V" in "ACTIVE TEST" mode with CONSULT-III. Check that engine speed varies according to the valve
opening.
Does engine speed vary according to the valve opening?
YES - GO TO 8.
NO - GO TO 7.
7.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
See: P Code Charts/P0443.
Is the inspection result normal?
YES - GO TO 8.
NO - Replace EVAP canister purge volume control solenoid valve.
8.CHECK RUBBER TUBE FOR CLOGGING
1. Disconnect rubber tube connected to EVAP canister vent control valve.
2. Check the rubber tube for clogging.
Is the inspection result normal?
YES - GO TO 9.
NO - Clean the rubber tube using an air blower.
9.CHECK EVAP CANISTER VENT CONTROL VALVE
See: P Code Charts/P0447.
Is the inspection result normal?
YES - GO TO 10.
NO - Replace EVAP canister vent control valve.
