DTC P115B:00 [MZR-CD 2.2]

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DTC P115B:00

Low fuel level—forced engine shutdown
DETECTION CONDITION
•  The PCM monitors the fuel level of the fuel tank using the fuel gauge signal from the instrument cluster. If the total of fuel injection amount calculated by the PCM after the fuel level falls below the E-line is above threshold (greater than DTC P0313:00), the PCM determines that the fuel level is low.
Diagnostic support note
•  The MIL does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  The DTC is not stored in the PCM memory.
Note
•  A forced engine stall is detected by the PCM fail-safe function, when the PCM stores this DTC.
POSSIBLE CAUSE
•  No fuel in tank
•  Fuel gauge (in instrument cluster) malfunction
•  Fuel gauge sender unit malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
2
INSPECT WHETHER MALFUNCTION IS LOW FUEL LEVEL OR INSTRUMENT CLUSTER
•  Clear the DTC from the PCM memory using the M-MDS.
•  Refill the fuel above 9 L {2 US gal, 2 lmp gal}.
•  Start the engine and warm it up completely.
•  Perform the DTC Reading Procedure.
•  Is the DTC P0313:00, P115A:00 or P115B:00 present?
Note
•  If the refueling amount is low, the PCM stored DTC P0313:00, P115A:00 or P115B:00 continues.
Yes
Go to the next step.
No
If other DTC or PENDING CODE is stored:
•  Go to the applicable PENDING CODE or DTC inspection.
If any DTC is not stored:
•  DTC troubleshooting completed (the cause of this DTC is low fuel level).
―  Go to Step 4.
3
REINSPECT WHETHER MALFUNCTION IS LOW FUEL LEVEL OR INSTRUMENT CLUSTER
•  Refill the fuel till fuel level is above 9 L {2 US gal, 2 lmp gal}.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Refill the fuel above 9 L {2 US gal, 2 lmp gal}.
•  Start the engine and warm it up completely.
•  Perform the DTC Reading Procedure.
•  Is the DTC P0313:00, P115A:00 or P115B:00 present?
Yes
Inspect the fuel gauge.
(See INSTRUMENT CLUSTER INSPECTION.)
Repair or replace the malfunctioning part according to the inspection results, then go to the next step.
No
If other DTC or PENDING CODE is stored:
•  Go to the applicable PENDING CODE or DTC inspection.
If any DTC is not stored:
•  DTC troubleshooting completed (the cause of this DTC is low fuel level).
―  Go to the next step.
4
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine and warm it up completely.
•  Perform the DTC Reading Procedure.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
5
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
No
DTC troubleshooting completed.