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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 90 (Lane Departure Warning System (LDWS) - With Diagnostics) >> Diagnosis Function >> Diagnostic Trouble Code Procedures >> DTC B2507: Steering angle sensor defective >> Diagnosis

DTC B2507: Steering angle sensor defective: 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. Using scan tool (M.U.T.-III), diagnose the CAN bus line 
    CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (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 ignition switch to the "ON" position.
    3. Diagnose the CAN bus line.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the CAN bus line found to be normal? 

    1. YES:  Go to Step 2
    2. NO:  Repair the CAN bus line (Refer to DIAGNOSIS ). On completion, go to Step 2.
  2. STEP 2. Using scan tool (M.U.T.-III), read the ASC diagnostic trouble code 

    Check if DTC is stored in the ASC-ECU.

    Q: Is the DTC stored? 

    1. YES:  Diagnose the ASC. Refer to DIAGNOSTIC TROUBLE CODE CHART .
    2. NO:  Go to Step 3
  3. STEP 3. Recheck for diagnostic trouble code. 

    Follow the procedure below to check whether the LDW-ECU stores DTC No. B2507.

    1. Perform calibration of steering wheel sensor (Refer to STEERING WHEEL SENSOR CALIBRATION ).
    2. Erase the DTC.
    3. Turn the ignition switch from the LOCK (OFF) position to the ON position.
    4. Check if the DTC is stored.

    Q: Is the DTC stored? 

    1. YES:  Go to Step 4
    2. NO:  The diagnosis is complete.
  4. STEP 4. Using scan tool (M.U.T.-III), check data list. 

    Check the LDW-ECU service data.

    • When the steering wheel sensor neutral point is learned.
      Item No. Item name Normal condition
      Item 12 Steering angle sensor status Normal
    • Vehicle stopped (the steering wheel is in the neutral position)
      Item No. Item name Normal condition
      Item 13 Steering angle -6 to 6 deg
    • Running
      Item No. Item name Normal condition
      Item 13 Steering angle Nearly the same as the steering wheel operation angle <-720 to 720 deg (LDW-ECU normal detection value) >

      OK: Normal conditions are displayed for all the items. 

    Q: Is the check result normal? 

    1. YES:  Go to Step 5
    2. NO:  Replace the steering wheel sensor.
  5. STEP 5. Recheck for diagnostic trouble code. 

    Check if the DTC No. B2507 is stored in LDW-ECU.

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

    Q: Is the DTC stored? 

    1. YES:  Replace the LDW-ECU.
    2. NO:  The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
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