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Home >> Chrysler >> 2001 >> Sebring LX, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Simplified Wiring System (SWS) - Coupe) >> SWS Diagnosis >> Diagnostic Trouble Code Procedures >> DTC 12: Column switch fault or improper connection to the ETACS-ECU >> Diagnosis

DTC 12: Column switch fault or improper connection to the ETACS-ECU: Diagnosis

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tools: 

  1. STEP 1. Verify the ignition switch position. 

    Q: Does DTC 11 set with the ignition switch at "ON" position? 

    YES  : Go to  Step 5.

    NO:  Go to Step 2.

  2. STEP 2. Check the battery power supply circuit to the column switch. Test at column switch connector C-203. 
    1. Disconnect column switch connector C-203 and measure the voltage available at the wiring harness side.
      Fig 1: Identifying Switch Connector C-203
      G04540816Courtesy of DAIMLERCHRYSLER CORPORATION
    2. Measure the voltage between terminal 1 and ground.
      • The voltage should equal approximately 12 volts (battery positive voltage).

    Q: Is the measured voltage approximately 12 volts (battery positive voltage)? 

    YES  : Go to  Step 8.

    NO:  Go to Step 3.

    Fig 2: Measuring Voltage Between Terminal 1 And Ground
    G04540817Courtesy of DAIMLERCHRYSLER CORPORATION
  3. STEP 3. Check the column switch connector C-203 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Is column switch connector C-203 in good condition? 

    YES  : Go to Step 4.

    NO:  Repair or replace the damaged component(s). Refer to , HARNESS CONNECTOR INSPECTION . Confirm the DTC 12 is not displayed.

    Fig 3: Identifying Switch Connector C-203
    G04540818Courtesy of DAIMLERCHRYSLER CORPORATION
  4. STEP 4. Check the wiring harness between column switch connector C-203 (terminal 1) and battery. 
    Fig 4: Locating Column Switch Connector C-203
    G04540819Courtesy of DAIMLERCHRYSLER CORPORATION
    NOTE: Also check joint connector C-141 and intermediate connector C-209 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If joint connector C-141 or intermediate connector C-209 is damaged, repair or replace the damaged component(s) as described in , HARNESS CONNECTOR INSPECTION .

    Q: Are the wiring harness between column switch connector C-203 (terminal 1) and battery in good condition? 

    YES  : No action is necessary and testing is complete.

    NO:  The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Confirm the DTC 12 is not displayed.

    Fig 5: Identifying Joint Connector C-141
    G04540820Courtesy of DAIMLERCHRYSLER CORPORATION
    Fig 6: Locating Intermediate Connector C-209
    G04540821Courtesy of DAIMLERCHRYSLER CORPORATION
  5. STEP 5. Check the ground circuit to the column switch. Test at column switch connector C-203. 
    1. Disconnect column switch connector C-203 and measure the resistance available at the wiring harness side of the connector.
      Fig 7: Identifying Column Switch Connector C-203
      G04540822Courtesy of DAIMLERCHRYSLER CORPORATION
    2. Measure the resistance between terminal 4 and ground.
      • The resistance should equal 2 ohms or less.

    Q: Is the measured resistance 2 ohms or less? 

    YES  : Go to  Step 8.

    NO:  Go to Step 6.

    Fig 8: Measuring Resistance Between Terminal 4 And Ground
    G04540823Courtesy of DAIMLERCHRYSLER CORPORATION
  6. STEP 6. Check the column switch connector C-203 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Is column switch connector C-203 in good condition? 

    YES  : Go to Step 7.

    NO:  Repair or replace the damaged component(s). Refer to , HARNESS CONNECTOR INSPECTION . Confirm the DTC 12 is not displayed.

    Fig 9: Locating Column Switch Connector C-203
    G04540824Courtesy of DAIMLERCHRYSLER CORPORATION
  7. STEP 7. Check the wiring harness between column switch connector C-203 (terminal 4) and ground. 
    Fig 10: Identifying Column Switch Connector C-203
    G04540825Courtesy of DAIMLERCHRYSLER CORPORATION
    NOTE: Also check joint connector C-141 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If joint connector C-141 is damaged, repair or replace the damaged component(s) as described in , HARNESS CONNECTOR INSPECTION .

    Q: Are the wiring harness between column switch connector C-203 (terminal 4) and ground in good condition? 

    YES  : No action is necessary and testing is complete.

    NO:  The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Confirm the DTC 12 is not displayed.

    Fig 11: Identifying Joint Connector C-141
    G04540826Courtesy of DAIMLERCHRYSLER CORPORATION
  8. STEP 8. Check the column switch connector C-203 and ETACS-ECU connector C-318 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are column switch connector C-203 and ETACS-ECU connector C-318 in good condition? 

    YES  : Go to Step 9.

    NO:  Repair or replace the damaged component(s). Refer to , HARNESS CONNECTOR INSPECTION . Confirm the DTC 12 is not displayed.

    Fig 12: Identifying Column Switch Connector C-203
    G04540827Courtesy of DAIMLERCHRYSLER CORPORATION
    Fig 13: Locating ETACS-ECU Connector C-318
    G04540828Courtesy of DAIMLERCHRYSLER CORPORATION
  9. STEP 9. Check the wiring harness between column switch connector C-203 (terminal 3) and ETACS-ECU (terminal 59) connector C-318. 
    Fig 14: Identifying Column Switch Connector C-203
    G04540829Courtesy of DAIMLERCHRYSLER CORPORATION
    Fig 15: Identifying ETACS-ECU Connector C-318
    G04540830Courtesy of DAIMLERCHRYSLER CORPORATION
    NOTE: Also check joint connector C-141 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If joint connector C-141 is damaged, repair or replace the damaged component(s) as described in , HARNESS CONNECTOR INSPECTION .

    Q: Are the wiring harness between column switch connector C-203 (terminal 3) and ETACS-ECU connector C-318 (terminal 59) in good condition? 

    YES  : Go to Step 10.

    NO:  The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Confirm the DTC 12 is not displayed.

    Fig 16: Identifying Joint Connector C-141
    G04540831Courtesy of DAIMLERCHRYSLER CORPORATION
  10. STEP 10. Replacement of ECU. 
    1. Replace the column switch.
    2. Confirm the DTC 12 is not displayed.

    Q: Does DTC 12 set? 

    YES  : Replace the ETACS-ECU. Confirm the DTC 12 is not displayed.

    NO:  No action is necessary and testing is complete.

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