DTC P1180:00 [MZ-CD 1.6]

id0102g8438500

DTC P1180:00

Fuel delivery system - low
DETECTION CONDITION
•  The PCM monitors the fuel pressure based on the engine speed. If the fuel pressure is less than the threshold, the PCM determines that there is a malfunction in the fuel metering valve circuit.
POSSIBLE CAUSE
•  Fuel metering valve connector or terminal malfunction
•  Short to ground in wiring harness between fuel metering valve terminal B and PCM terminal 202
•  Fuel metering valve malfunction
•  PCM connector or terminal malfunction
•  Open circuit in the wiring harness between fuel metering valve terminal B and PCM terminal 202
•  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 the 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
INSPECT FUEL METERING VALVE CONNECTOR CONDITION
•  Switch the ignition to off.
•  Disconnect the fuel metering valve connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion)
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 8.
No
Go to the next step.
4
INSPECT FUEL METERING VALVE CONTROL CIRCUIT FOR SHORT TO GROUND
•  Disconnect the fuel metering valve connector.
•  Inspect for continuity between fuel metering valve terminal B (wiring harness-side) and body ground.
•  Is there continuity?
Yes
Repair or replace the wiring harness for a possible short to ground, then go to Step 8.
No
Go to the next step.
5
INSPECT FUEL METERING VALVE
•  Inspect the fuel metering valve.
•  Is there any malfunction?
Yes
Replace the fuel metering valve, then go to Step 8.
(See SUPPLY PUMP REMOVAL/INSTALLATION [MZ-CD 1.6].)
No
Go to the next step.
6
INSPECT PCM CONNECTOR CONDITION
•  Disconnect the PCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion)
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 8.
No
Go to the next step.
7
INSPECT FUEL METERING VALVE CONTROL CIRCUIT FOR OPEN CIRCUIT
•  Switch the ignition to off.
•  Inspect for continuity between the fuel metering valve terminal B (wiring harness-side) and PCM terminal 202 (wiring harness-side)
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to the next step.
8
VERIFY THAT DTC P1180:00 TROUBLESHOOTING IS COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Run the vehicle under the FREEZE FRAME DATA stored condition.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
(See PCM REMOVAL/INSTALLATION [MZ-CD 1.6].)
Go to the next step.
No
Go to the next step.
9
VERIFY AFTER REPAIR PROCEDURE
•  Perform the after repair procedure.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6].)
No
DTC troubleshooting completed.