DTC P2409 [MZ-CD 1.6 (Y6)]

id0102c3841000

DTC P2409

Fuel-filler switch circuit range/performance
DETECTION CONDITION
•  The fuel additive control module monitors the fuel-filler lid open/close position using fuel-filler switch. If the fuel additive control module detects that the fuel-filler lid open while the vehicle is driven or fuel-filler lid closed while refueling 10 liter {2.64 US gal, 2.20 Imp gal} or more, the fuel additive control module determines that the fuel-filler switch circuit range/performance problem.
POSSIBLE CAUSE
•  Open circuit between fuel additive control module terminal 16 and fuel-filler switch terminal A
•  Open circuit between fuel additive control module terminal 15 and fuel-filler switch terminal B
•  Short circuit between fuel additive control module terminal 15 and 16
•  Fuel-filler lid stuck open or close
•  Fuel-filler switch malfunction
•  Short to ground circuit between fuel additive control module terminal 15 and fuel-filler switch terminal B

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has the FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY REPAIR INFORMATION AVAILABILITY
•  Verify related service repair information availability.
•  Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT FUEL-FILLER SWITCH SIGNAL CIRCUIT FOR OPEN
•  Turn the engine switch off.
•  Disconnect fuel additive control module and fuel-filler switch connector
•  Verify continuity at harness-side connectors between fuel additive control module terminal 16 and fuel-filler switch terminal A.
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for open, then go to Step 8.
4
INSPECT FUEL-FILLER SWITCH GROUND CIRCUIT FOR OPEN
•  The fuel additive control module and the fuel additive pump disconnected.
•  Verify continuity at harness-side connectors between fuel additive control module terminal 15 and fuel-filler switch terminal B.
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for open, then go to Step 8.
5
INSPECT SHORT FOR FUEL-FILLER SWITCH SIGNAL AND GROUND CIRCUIT
•  The fuel additive control module and the fuel additive pump disconnected.
•  Verify continuity at harness-side connectors between fuel additive control module terminal 15 and 16.
•  Is there continuity?
Yes
Repair or replace short circuit, then go to Step 8.
No
Go to the next step.
6
INSPECT FUEL-FILLER SWITCH
•  Inspect the fuel-filler switch.
•  Is the fuel-filler switch okay?
Yes
Go to the next step.
No
Replace the fuel-filler switch, then go to Step 8.
7
VERIFY INSTALLATION OF FUEL-FILLER LID AND SWITCH
•  Verify that the fuel-filler lid and switch installation.
•  Are there installed properly?
Yes
Go to the next step.
No
Adjust the installation or replace malfunctioning part, then go to the next step.
8
VERIFY FUEL-FILLER LID AND FUEL-FILLER SWITCH INSTALLATION
•  Verify that the fuel-filler lid and fuel-filler switch installation.
•  Are there installed properly?
Yes
Go to the next step.
No
Adjust installation or replace malfunctioning part, then go to the next step.
9
VERIFY THAT DTC P2409 TROUBLESHOOTING IS COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the fuel additive control module memory using the M-MDS.
•  Start the engine and warm-up to normal operating temperature.
•  Retrieve the DTC using the M-MDS.
•  Is the PENDING CODE same DTC present?
Yes
Replace fuel additive control module, then go to the next step.
(See FUEL ADDITIVE CONTROL MODULE REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6)].)
No
Go to the next step.
10
VERIFY AFTER REPAIR PROCEDURE
•  Perform "After Repair Procedure".
•  Is there any DTC present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6 (Y6)].)
No
Troubleshooting completed.