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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (Combination Meter On-Vehicle Service - With Diagnostics) >> Diagnostic Trouble Code Procedures >> DTC B1201: Fuel Information Problem >> Diagnosis

DTC B1201: Fuel Information Problem: Diagnosis

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tools: 

  1. STEP 1. Check of fuel pump module circuit 
    1. Disconnect the fuel pump and gauge unit (main) connector.
    2. Use the special tool Check harness (MB991219) to connect a test light (12 V - 3.4 W) between the wiring harness connector terminals.
    3. Turn the ignition switch to the ON position.
    4. Check if the test light illuminates.

      OK: Illuminates 

    Q: Is the check result normal? 

    1. YES:  Go to  Step 6.
    2. NO:  Go to Step 2.
  2. STEP 2. Fuel pump and gauge unit (main) and fuel gauge unit (sub) check 

    Check the fuel pump module and fuel level sensor (sub). Refer to FUEL LEVEL SENSOR CHECK  .

    Q: Is the check result normal? 

    1. YES:  Go to Step 3.
    2. NO:  Replace the fuel pump module and fuel level sensor (sub).
  3. STEP 3. Resistance measurement at the fuel pump module connector 
    1. Disconnect the fuel pump module connector, the measure at the harness side.
    2. Measure the resistance between the fuel pump module connector and ground.

      OK: The measured value should be 2 ohm or less. 

    Q: Does the measured resistance value correspond with this range? 

    1. YES:  Go to  Step 5.
    2. NO:  Go to Step 4.
  4. STEP 4. Check of open circuit in ground line between fuel pump module connector and ground. 

    Q: Is the check result normal? 

    1. YES:  Go to  Step 7.
    2. NO:  Repair the connector(s) or wiring harness, and then go to  Step 7.
  5. STEP 5. Check of open circuit in F/G line between combination meter connector and fuel pump module connector. 

    Q: Is the check result normal? 

    1. YES:  Go to Step 6.
    2. NO:  Repair the connector(s) or wiring harness, and then go to  Step 7.
  6. STEP 6. Using scan tool (M.U.T.-III), perform actuator test. 
    • Item 03: Fuel gauge (target value): 0 →100%

      OK: The fuel gauge operates. 

    Q: Is the check result normal? 

    1. YES:  Go to Step 7.
    2. NO:  Replace the combination meter.
  7. STEP 7. Recheck for diagnostic trouble code. 

    Check again if the DTC is stored in the combination meter.

    1. Erase the DTC.
    2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
    3. Check if DTC is stored.

    Q: Is the DTC stored? 

    1. YES:  Replace the combination meter.
    2. NO:  The diagnosis is complete.
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