LEMON Manuals: Even more car manuals for everyone
Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Keyless Operation System (Kos) - With Diagnostics) >> Diagnosis < OSS-Ecu > >> Diagnostic Trouble Code Procedures >> DTC B1133: IG1 setting circuit fail >> Diagnosis

DTC B1133: IG1 setting circuit fail: 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.
  1. STEP 1. Check of short to power supply, short to ground, and open circuit in IG1 line between OSS-ECU connector and ETACS-ECU connector 
    NOTE: Before the wiring harness check, check the joint connector, and repair if necessary.

    Q: Is the check result normal? 

    1. YES:  Go to Step 2.
    2. NO:  Repair the connector(s) or wiring harness.
  2. STEP 2. Voltage measurement at ETACS-ECU connector (IG1 terminal) 
    1. Measure the ETACS-ECU connector side by backprobing.
    2. Using the scan tool (M.U.T.-III), set the forced power supply output to other than "IG-ON". (Refer to FORCED POWER SUPPLY OUTPUT PROCEDURE  .)
    3. Measure the voltage between the ETACS-ECU connector (IG1 terminal) and body ground.

      OK: 1 V or less 

    4. Using the scan tool (M.U.T.-III), set the forced power supply output to "IG-ON". (Refer to FORCED POWER SUPPLY OUTPUT PROCEDURE  .)
    5. Measure the voltage between the ETACS-ECU connector (IG1 terminal) and body ground.

      OK: System voltage 

    Q: Is the check result normal? 

    1. YES:  Go to Step 3.
    2. NO:  Replace the OSS-ECU and register the chassis number (Refer to REGISTRATION WHEN REPLACING OSS-ECU  ).
  3. STEP 3. Using scan tool (M.U.T.-III), check data list. 
    CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (M.U.T.-III).
    1. Connect scan tool (M.U.T.-III). Refer to "HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)  ."
    2. Turn the power supply mode of the engine switch to OFF.

      Check the OSS-ECU data list.

      Power supply mode Item No. Check item Display
      ON 15 IG1 output (monitor) ON
      Other than ON OFF

      OK: Depending on the state of power supply mode, the display is turned ON/OFF. 

    Q: Is the check result normal? 

    1. YES:  Go to Step 4.
    2. NO:  Replace the OSS-ECU and register the chassis number (Refer to REGISTRATION WHEN REPLACING OSS-ECU  ).
  4. STEP 4. Recheck for diagnostic trouble code. 
    1. Erase the DTC.
    2. Turn the power supply mode of the engine switch from OFF to ON.
    3. Check if DTC is stored.
    4. Turn the power supply mode of the engine switch from ON to OFF.

    Q: Is the DTC stored? 

    1. YES:  Replace the ETACS-ECU.
    2. NO:  Intermittent malfunction is suspected (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION )
scientia non olet · About LEMON Manuals