2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 539
YES - INSPECTION END
NO - Go to See: P Code Charts/P0461.
Component Function Check
1.PRECONDITIONING
WARNING:
When performing the following procedure, always observe the handling of the fuel. See: Powertrain Management/Fuel Delivery and Air
Induction/Fuel Tank/Service and Repair/Component.
TESTING CONDITION:
Before starting component function check, preparation of draining fuel and refilling fuel is required.
Will CONSULT-III be used?
YES - GO TO 2.
NO - GO TO 3.
2.PERFORM COMPONENT FUNCTION CHECK
With CONSULT-III
NOTE:
Start from step 10, if it is possible to confirm that the fuel cannot be drained by 30 (7-7/8 US gal, 6-5/8 Imp gal) in advance.
1. Prepare a fuel container and a spare hose.
2. Release fuel pressure from fuel line, See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Fuel
Pressure/Testing and Inspection.
3. Remove the fuel feed hose on the fuel level sensor unit.
4. Connect a spare fuel hose where the fuel feed hose was removed.
5. Turn ignition switch OFF and wait at least 10 seconds then turn ON.
6. Select "FUEL LEVEL SE" in "DATA MONITOR" mode with CONSULT-III.
7. Check "FUEL LEVEL SE" output voltage and note it.
8. Select "FUEL PUMP RELAY" in "ACTIVE TEST" mode with CONSULT-III.
9. Touch "ON" and drain fuel approximately 30 (7-7/8 US gal, 6-5/8 Imp gal) and stop it.
10. Check "FUEL LEVEL SE" output voltage and note it.
11. Fill fuel into the fuel tank for 30 (7-7/8 US gal, 6-5/8 Imp gal).
12. Check "FUEL LEVEL SE" output voltage and note it.
13. Confirm whether the voltage changes more than 0.03 V during step 7 to 10 and 10 to 12.
Is the inspection result normal?
YES - INSPECTION END
NO - Go to See: P Code Charts/P0461.
3.PERFORM COMPONENT FUNCTION CHECK
Without CONSULT-III
NOTE:
Start from step 8, if it is possible to confirm that the fuel cannot be drained by 30 (7-7/8 US gal, 6-5/8
Imp gal) in advance.
1. Prepare a fuel container and a spare hose.
2. Release fuel pressure from fuel line. See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Fuel
Pressure/Testing and Inspection.
3. Remove the fuel feed hose on the fuel level sensor unit.
4. Connect a spare fuel hose where the fuel feed hose was removed.
5. Turn ignition switch ON.
6. Drain fuel by 30 (7-7/8 US gal, 6-5/8 Imp gal) from the fuel tank using proper equipment.
7. Confirm that the fuel gauge indication varies.
8. Fill fuel into the fuel tank for 30 (7-7/8 US gal, 6-5/8 Imp gal).
9. Confirm that the fuel gauge indication varies.
Is the inspection result normal?
YES - INSPECTION END
NO - Go to See: P Code Charts/P0461.
Diagnosis Procedure
1.CHECK DTC WITH "UNIFIED METER AND A/C AMP."
.
Is the inspection result normal?
YES - GO TO 2.
NO - Go to See: Instrument Panel, Gauges and Warning Indicators/Testing and Inspection/Component Tests and General
Diagnostics/Combination Meter/Fuel Level Sensor Signal Inspection.
2.CHECK INTERMITTENT INCIDENT
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Trouble
Diagnosis For Intermittent Incident/Description.
- INSPECTION END
P0462
P0462, P0463 FUEL LEVEL SENSOR
