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Home >> Mitsubishi >> 2003 >> Outlander XLS, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Auto-Cruise Control System >> Auto-Cruise Control System Diagnosis >> Diagnostic Trouble Code Procedures >> DTC 15 : Auto-cruise Control Switch System >> Diagnosis

DTC 15 : Auto-cruise Control Switch System: Diagnosis

Required Special Tool : 

  1. STEP 1. Measure the 12-Volt supply circuit voltage at autocruise control switch connector C-301 (terminal 1). 
    1. Disconnect auto-cruise control switch connector C-301 and measure at the harness side.
      Fig 1: Identifying Clock Spring Connector C-301
      G01864613Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between terminal 1 and ground.
      Fig 2: Measuring Voltage Between Terminal 1 And Ground
      G01864614Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the voltage approximately battery positive voltage? 

    1. YES :  Go to Step  6 .
    2. NO :  Go to Step 2.
  2. STEP 2. Check auto-cruise control switch connector C- 301. 
    Fig 3: Identifying Auto-Cruise Control Switch Connector C- 301
    G01864615Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is the connector damaged? 

    1. YES :  Repair or replace connector. Refer to HARNESS CONNECTOR INSPECTION . Then check that diagnostic trouble code 15 is not output.
    2. NO :  Go to Step 3.
  3. STEP 3. Check the clock spring. 

    Refer to AIR BAG MODULES AND CLOCK SPRING .

    Q: Is the clock spring damaged? 

    1. YES :  Replace the clock spring. Refer to AIR BAG MODULES AND CLOCK SPRING . Then check that diagnostic trouble code 15 is not output.
    2. NO :  Go to Step 4.
  4. STEP 4. Check intermediate connector C-302 and clock spring connector C-308, C-309. 
    Fig 4: Checking Intermediate Connector C-302 And Clock Spring Connector C-308, C-309
    G01864616Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is any connector damaged? 

    1. YES :  Repair or replace connector. Refer to HARNESS CONNECTOR INSPECTION . Then check that diagnostic trouble code 15 is not output.
    2. NO :  Go to Step 5.
  5. STEP 5. Check the harness wire between junction block (fuse 4) and auto- cruise control switch connector C-301 (terminal 1). 
    Fig 5: Identifying Auto- Cruise Control Switch Connector C-301 (Terminal 1)
    G01864617Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is any harness wire between junction block (fuse 4) and auto-cruise control switch connector C-301 (terminal 1) damaged? 

    1. YES :  Repair harness wire and then check that diagnostic trouble code 15 is not output.
    2. NO :  This malfunction is intermittent. Refer to HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS - HOW TO COPE WITH INTERMITTENT MALFUNCTION . Then check that diagnostic trouble code 15 is not output.
  6. STEP 6. Measure the output circuit voltage at auto-cruise control switch connector C-301 (terminals 2 and 3) by backprobing. 
    1. Do not disconnect auto-cruise control switch connector C- 301.
      Fig 6: Identifying Auto-Cruise Control Switch Connector C- 301
      G01864618Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between terminal 2 and ground by backprobing.
      • Voltage should measure battery positive voltage. (MAIN switch is at the "ON" position.)
    4. Measure the voltage between terminal 3 and ground by backprobing.
      • Voltage should measure between 6.8 and 7.2 volts.

        (MAIN switch is at the "ON" position.)

      • Voltage should measure between 3.5 and 5.0 volts. (All switches are at the "OFF" position.)
      • Voltage should measure between 0.4 and 2.3 volts.

        ("SET" switch is at the "ON" position)

      • Voltage should measure between 2.3 and 3.5 volts.

        ("RESUME" switch is at the "ON" position.)

      • Voltage should measure between 1 volt or less. ("CANCEL" switch is at the "ON" position.)
      Fig 7: Measuring Voltage Between Terminal 2, 3 And Ground By Backprobing
      G01864619Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    5. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the voltage within specifications? 

    1. YES :  Go to Step  9 .
    2. NO :  Go to Step 7.
  7. STEP 7. Check auto-cruise control switch connector C- 301. 
    Fig 8: Identifying Auto-Cruise Control Switch Connector C- 301
    G01864620Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is the connector damaged? 

    1. YES :  Repair or replace connector. Refer to HARNESS CONNECTOR INSPECTION . Then check that diagnostic trouble code 15 is not output.
    2. NO :  Go to Step 8.
  8. STEP 8. Check the auto-cruise control switch. 
    1. Remove the auto-cruise control switch. (Refer to AUTO-CRUISE CONTROL  .)
    2. Measure the resistance between the terminals when each of the "SET," "RESUME," "CANCEL" and MAIN switch is pressed.
      Fig 9: Measuring Resistance Between Terminals
      G01864622Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 10: Identifying Switch Position Specified Condition
      G01864621Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is the values measured correspond to those in the table below? 

    1. YES :  Check that diagnostic trouble code 15 is not output. If diagnostic trouble code 15 is output, replace the autocruise control-ECU. (Refer to AUTO-CRUISE CONTROL  .) Then check that diagnostic trouble code 15 is not output.
    2. NO :  Replace the auto-cruise control switch. (Refer to AUTO-CRUISE CONTROL  .) Then check that diagnostic trouble code 15 is not output.
  9. STEP 9. Measure the output circuit voltage at auto-cruise control-ECU connector C-113 (terminals 9 and 12) by backprobing. 
    1. Do not disconnect auto-cruise control-ECU connector C- 113.
      Fig 11: Identifying Auto-Cruise Control-ECU Connector C- 113
      G01864623Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between terminal 12 and ground by backprobing.
      • Voltage should measure battery positive voltage.

        (The MAIN switch is at the "ON" position.)

      Fig 12: Measuring Voltage Between Terminal 9, 12 And Ground By Backprobing
      G01864624Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between terminal 9 and ground by backprobing.
      • Voltage should measure between 6.8 and 7.2 volts.

        (MAIN switch is at the "ON" position.)

      • Voltage should measure between 3.5 and 5.0 volts. (All switches are at the "OFF" position.)
      • Voltage should measure between 0.4 and 2.3 volts.

        ("SET" switch is at the "ON" position.)

      • Voltage should measure between 2.3 and 3.5 volts.

        ("RESUME" switch is at the "ON" position.)

      • Voltage should measure between 1 volt or less. ("CANCEL" switch is at the "ON" position.)
    5. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the voltage within specifications? 

    1. YES :  Check that diagnostic trouble code 15 is not output. If diagnostic trouble code 15 is output, replace the autocruise control-ECU. (Refer to AUTO-CRUISE CONTROL  .) Then check that diagnostic trouble code 15 is not output.
    2. NO :  Go to Step 10.
  10. STEP 10. Check auto-cruise control-ECU connector C-113. 
    Fig 13: Identifying Auto-Cruise Control-ECU Connector C-113
    G01864625Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is the connector damaged? 

    1. YES :  Repair or replace connector. Refer to HARNESS CONNECTOR INSPECTION . Then check that diagnostic trouble code 15 is not output.
    2. NO :  Go to Step 11.
  11. STEP 11. Check the clock spring. 

    Refer to AIR BAG MODULES AND CLOCK SPRING .

    Q: Is the clock spring damaged? 

    1. YES :  Replace the clock spring. Refer to AIR BAG MODULES AND CLOCK SPRING . Then check that diagnostic trouble code 15 is not output.
    2. NO :  Go to Step 12.
  12. STEP 12. Check auto-cruise control switch connector C- 301, intermediate connector C-302 and clock spring connector C-308, C-309. 
    Fig 14: Identifying Auto-Cruise Control Switch Connectors C- 301, C-302 C-308, C-309
    G01864626Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is any connector damaged? 

    1. YES :  Repair or replace connector. Refer to HARNESS CONNECTOR INSPECTION . Then check that diagnostic trouble code 15 is not output.
    2. NO :  Go to Step 13.
  13. STEP 13. Check the harness wire between auto-cruise control switch connector C-301 (terminals 2 and 3) and auto-cruise control-ECU connector C-113 (terminals 9 and 12). 
    Fig 15: Identifying Auto-Cruise Control Switch Connector C-301 (Terminals 2 And 3)
    G01864627Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 16: Identifying Auto-Cruise Control-ECU Connector C-113 (Terminals 9 And 12)
    G01864628Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is any harness wire between auto-cruise control switch connector C-301 (terminals 2 and 3) and auto-cruise control-ECU connector C-113 (terminals 9 and 12) damaged? 

    1. YES :  Repair harness wire and then check that diagnostic trouble code 15 is not output.
    2. NO :  Check that diagnostic trouble code 15 is not output. If diagnostic trouble code 15 is output, replace the autocruise control-ECU. (Refer to AUTO-CRUISE CONTROL  .) Then check that diagnostic trouble code 15 is not output.
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