Mazda Factory OBD-II DTC P1180 Code Diagnostic Procedure

Mazda P1180 Fuel delivery system-low
DETECTION CONDITION
•  Fuel run dry strategy triggered
•  Faults for checks in PCV controlled mode – Minimum rail pressure exceeded
POSSIBLE CAUSE
•  Fuel empty
•  Fuel supply pump malfunction
•  Fuel pressure sensor characteristic malfunction
•  Fuel metering control valve or related circuit malfunction
•  Fuel limiter malfunction
•  Fuel leakage from fuel system
•  Fuel leakage from fuel injector
•  PCM malfunction

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 repair order, then go to the next step.
2
VERIFY RELATED 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
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
•  Is DTC P1180 on FREEZE FRAME DATA?.
Yes
Go to the next step.
No
Go to the troubleshooting procedures for the DTC in FREEZE FRAME DATA.
4
VERIFY FUEL LEVEL
•  Verify the fuel level.
•  Is the fuel level empty?
Yes
Refill the fuel, then go to Step 9.
No
Go to the next step.
5
INSPECT FUEL LINE
•  Turn the engine switch off.
•  Inspect for leakage or clogging in the following fuel lines for each cylinder;.
―  Fuel supply pump and common rail
―  Common rail and fuel injector
•  Is there any malfunction?
Yes
Repair or replace the suspected fuel line, then go to Step 9.
No
Go to the next step.
6
INSPECT FUEL METERING CONTROL VALVE
•  Inspect the fuel metering control valve.
•  Is there any malfunction?
Yes
Replace the fuel supply pump, then go to Step 9.
No
Go to the next step.
7
INSPECT FUEL PRESSURE SENSOR
•  Inspect the fuel pressure sensor.
•  Is there any malfunction?
Yes
Replace the common rail, then go to Step 9.
No
Go to the next step.
8
INSPECT FUEL INJECTOR
•  Inspect the fuel injector.
•  Is there any malfunction?
Yes
Replace the fuel injector, then go to the next step.
No
Inspect the following:
•  Fuel supply pump
•  Fuel pressure limiter
If malfunction is appeared, replace the suspected part.
Then go to the next step.
If it is normal, go to the next step.
9
VERIFY THAT DTC P1180 TROUBLESHOOTING IS COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine and warm-up to normal operating temperature.
•  Run the vehicle under the FREEZE FRAME DATA stored condition.
•  Retrieve the DTC using the M-MDS.
•  Is the PENDING CODE for this DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
10
VERIFY AFTER REPAIR PROCEDURE
•  Perform the after repair procedure.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.

Leave a Reply

Your email address will not be published. Required fields are marked *