INSPECTION PROCEDURE 17: Shift Switch Assembly System < Vehicles with sport mode >: Diagnosis

Required Special Tool: 

• MB991502: Scan Tool (MUT-II)

1. STEP 1. Using scan tool MB991502, read the A/T diagnostic trouble code. 
   CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991502.
   1. Connect scan tool MB991502 to the data link connector.
   2. Turn the ignition switch to the "ON" position.
   3. Check for A/T diagnostic trouble code.
   4. Turn the ignition switch to the "LOCK" (OFF) position.

   Q: Is DTC 27 or 28 set? 

   YES < DTC 27 set >  : Refer to DTC 27: Transmission Range Switch System (Open Circuit) .

   YES < DTC 28 set >  : Refer to DTC 28: Transmission Range Switch System (Short Circuit) .

   NO:  Go to Step

   Fig 1: Connecting Scan Tool To Data Link Connector

   Courtesy of CHRYSLER CORP.
2. STEP 2. Using scan tool MB991502, check data list item 67: Select Switch, item 68: Shift Switch (Up), item 69: Shift Switch (Down). 
   1. Connect scan tool MB991502 to the data link connector.
   2. Turn the ignition switch to the "ON" position.
   3. Set scan tool MB991502 to data reading mode for following items.
      1. item 67: Select Switch
      2. item 68: Shift Switch (Up)
      3. item 69: Shift Switch (Down)
         Fig 2: Connecting Scan Tool To Data Link Connector

         Courtesy of CHRYSLER CORP.
         DATA LIST ITEM
         
         

         SELECTOR LEVER OPERATION	DATA LIST ITEM
         	67	68	69
         D range	OFF	OFF	OFF
         Sport mode	ON	OFF	OFF
         Upshift and hold the selector lever	ON	ON	OFF
         Downshift and hold the selector lever	ON	OFF	ON

         NOTE: The switches above are displayed, depending on the selector lever condition as shown in the table.
   4. Turn the ignition switch to the "LOCK" (OFF) position.

   Q: Is the switch operating properly? 

   YES  : It can be assumed that this malfunction is intermittent. Refer to HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS .

   NO < If completely NG >  : Go to Step 3.

   NO < If item 68 and 69 both are NG >  : Go to  Step 5.

   NO < If only item 67 is NG >  : Go to  Step 9.

   NO < If only item 68 is NG >  : Go to  Step 18.

   NO < If only item 69 is NG >  : Go to  Step 23.

3. STEP 3. Check PCM connector C-123 and shift switch assembly connector C-132 for looser, corroded or damaged terminals, or terminals pushed back in the connector. 

   Q: Are the connectors and terminals in good condition? 

   YES  : Go to Step 4.

   NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

   Fig 3: Locating PCM Connector Terminal C-123

   Courtesy of CHRYSLER CORP.
   Fig 4: Identifying Shift Switch Connector Terminal C-132

   Courtesy of CHRYSLER CORP.
4. STEP 4. Using scan tool MB991502, check data list item 67: Select Switch, item 68: Shift Switch (Up), item 69: Shift Switch (Down). 
   CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991502.
   1. Connect scan tool MB991502 to the data link connector.
   2. Turn the ignition switch to the "ON" position.
   3. Check the following items in the data list.
      1. item 67: Select Switch
      2. item 68: Shift Switch (Up)
      3. item 69: Shift Switch (Down)
         Fig 5: Connecting Scan Tool To Data Link Connector

         Courtesy of CHRYSLER CORP.
         DATA LIST ITEM
         
         

         SELECTOR LEVER OPERATION	DATA LIST ITEM
         	67	68	69
         D range	OFF	OFF	OFF
         Sport mode	ON	OFF	OFF
         Upshift and hold the selector lever	ON	ON	OFF
         Downshift and hold the selector lever	ON	OFF	ON

         NOTE: The switches above are displayed, depending on the selector lever condition as shown in the table.
   4. Turn the ignition switch to the "LOCK" (OFF) position.

   Q: Is the switch operating properly? 

   YES  : It can be assumed that this malfunction is intermittent. Refer to HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS .

   NO:  Replace the PCM.

5. STEP 5. Check the shift switch assembly. 

   Refer to TRANSAXLE CONTROL .

   Q: Is the switch operating properly? 

   YES  : Go to Step 6.

   NO:  Replace the shift switch assembly. Refer to TRANSAXLE CONTROL .

6. STEP 6. Measure the power supply voltage at shift switch assembly connector C-132. 
   1. Disconnect connector C-132 and measure at the harness side.
   2. Turn the ignition switch to the "ON" position.
      Fig 6: Identifying Shift Switch Connector Terminal C-132

      Courtesy of CHRYSLER CORP.
   3. Measure the voltage between terminal 6 and ground.
      • The voltage should measure battery positive voltage.
   4. Turn the ignition switch to the "LOCK" (OFF) position.

   Q: Is the measured voltage battery positive voltage? 

   YES  : Go to Step 4.

   NO:  Go to  Step 7.

   Fig 7: Measuring Voltage Between Terminal 6 And Ground

   Courtesy of CHRYSLER CORP.
7. STEP 7. Check intermediate connector C-25 and shift switch assembly connector C-132 for looser, corroded or damaged terminals, or terminals pushed back in the connector. 

   Q: Are the connectors and terminals in good condition? 

   YES  : Go to Step 8.

   NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

   Fig 8: Identifying Intermediate Connector Terminal C-25

   Courtesy of CHRYSLER CORP.
   Fig 9: Identifying Shift Switch Connector Terminal C-132

   Courtesy of CHRYSLER CORP.
8. STEP 8. Check the harness for open circuit or short circuit to ground between intermediate connector C-25 terminal 2 and shift switch assembly connector C-132 terminal 6. 

   Q: Is the harness wire in good condition? 

   YES  : Go to  Step 4.

   NO:  Repair or replace the harness wire.

   Fig 10: Identifying Intermediate Connector Terminal C-25

   Courtesy of CHRYSLER CORP.
   Fig 11: Identifying Shift Switch Connector Terminal C-132

   Courtesy of CHRYSLER CORP.
9. STEP 9. Measure the power supply voltage at shift switch assembly connector C-132. 
   1. Disconnect connector C-132 and measure at the harness side.
   2. Turn the ignition switch to the "ON" position.
   3. Move the selector lever to the "D" position.
      Fig 12: Identifying Shift Switch Assembly Connector Terminal C-132

      Courtesy of CHRYSLER CORP.
   4. Measure the voltage between terminal 1 and ground.
      • The voltage should measure battery positive voltage.
   5. Turn the ignition switch to the "LOCK" (OFF) position.

   Q: Is the measured voltage battery positive voltage? 

   YES  : Go to  Step 12.

   NO:  Go to Step 10.

   Fig 13: Measuring Voltage Between Terminal 1 And Ground

   Courtesy of CHRYSLER CORP.
10. STEP 10. Check shift switch assembly connector C-132 for looser, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connector and terminals in good condition? 

    YES  : Go to Step 11.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 14: Identifying Shift Switch Assembly Connector Terminal C-132

    Courtesy of CHRYSLER CORP.
11. STEP 11. Check harness for open circuit or short circuit to ground between transmission range switch connector B-111 terminal 1 and shift switch assembly connector C-132 terminal 1. 

    Q: Is the harness wire in good condition? 

    YES  : Go to  Step 4.

    NO:  Repair or replace the harness wire.

    Fig 15: Locating Transmission Range Switch Connector B-111

    Courtesy of CHRYSLER CORP.
    Fig 16: Identifying Shift Switch Assembly Connector Terminal C-132

    Courtesy of CHRYSLER CORP.
12. STEP 12. Check the shift switch assembly. 

    Refer to TRANSAXLE CONTROL .

    Q: Is the switch operating properly? 

    YES  : Go to Step 13.

    NO:  Replace the shift switch assembly. Refer to TRANSAXLE CONTROL .

13. STEP 13. Measure the switch output voltage at PCM connector C-123 by backprobing. 
    1. Do not disconnect connector C-123.
    2. Turn the ignition switch to the "ON" position.
    3. Move the selector lever to the sport mode.
       Fig 17: Locating PCM Connector Terminal C-123

       Courtesy of CHRYSLER CORP.
    4. Measure the voltage between terminal 109 and ground by backprobing.
       • The voltage should measure battery positive voltage.
    5. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the measured voltage battery positive voltage? 

    YES  : Go to  Step 16.

    NO:  Go to Step 14.

    Fig 18: Measuring Voltage Between Terminal 109 And Ground By Backprobing

    Courtesy of CHRYSLER CORP.
14. STEP 14. Check PCM connector C-123 and shift switch assembly connector C-132 for looser, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connectors and terminals in good condition? 

    YES  : Go to Step 15.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 19: Locating PCM Connector Terminal C-123

    Courtesy of CHRYSLER CORP.
    Fig 20: Identifying Shift Switch Assembly Connector Terminal C-132

    Courtesy of CHRYSLER CORP.
15. STEP 15. Check the harness for open circuit or short circuit to ground between shift switch assembly connector C-132 terminal 5 and PCM connector C-123 terminal 109. 

    Q: Is the harness wire in good condition? 

    YES  : Go to  Step 4.

    NO:  Repair or replace the harness wire.

    Fig 21: Identifying Shift Switch Assembly Connector Terminal C-132

    Courtesy of CHRYSLER CORP.
    Fig 22: Locating PCM Connector Terminal C-123

    Courtesy of CHRYSLER CORP.
16. STEP 16. Check PCM connector C-123 for looser, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connector and terminals in good condition? 

    YES  : Go to  Step 4.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 23: Locating PCM Connector Terminal C-123

    Courtesy of CHRYSLER CORP.
17. STEP 17. Check the shift switch assembly. 

    Refer to TRANSAXLE CONTROL .

    Q: Is the switch operating properly? 

    YES  : Go to Step 18.

    NO:  Replace the shift switch assembly. Refer to TRANSAXLE CONTROL .

18. STEP 18. Measure the switch output voltage at PCM connector C-123. 
    1. Disconnect connector C-123 and measure at the harness side.
    2. Turn the ignition switch to the "ON" position.
       Fig 24: Locating PCM Connector Terminal C-123

       Courtesy of CHRYSLER CORP.
    3. Measure the voltage between terminal 122 and ground.
       • The voltage should measure battery positive voltage when the selector lever is upshift and hold.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the measured voltage battery positive voltage? 

    YES  : Go to  Step 21.

    NO:  Go to Step 19.

    Fig 25: Measuring Voltage Between Terminal 122 And Ground

    Courtesy of CHRYSLER CORP.
19. STEP 19. Check PCM connector C-123 and shift switch assembly connector C-132 for looser, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connectors and terminals in good condition? 

    YES  : Go to Step 20.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 26: Locating PCM Connector Terminal C-123

    Courtesy of CHRYSLER CORP.
    Fig 27: Identifying Shift Switch Assembly Connector Terminal C-132

    Courtesy of CHRYSLER CORP.
20. STEP 20. Check the harness for open circuit or short circuit to ground between PCM connector C-123 terminal 122 and shift switch assembly connector C-132 terminal 3. 

    Q: Is the harness wire in good condition? 

    YES  : Go to  Step 4.

    NO:  Repair or replace the harness wire.

    Fig 28: Locating PCM Connector Terminal C-123

    Courtesy of CHRYSLER CORP.
    Fig 29: Identifying Shift Switch Assembly Connector Terminal C-132

    Courtesy of CHRYSLER CORP.
21. STEP 21. Check PCM connector C-123 for looser, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connector and terminals in good condition? 

    YES  : Go to  Step 4.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 30: Locating PCM Connector Terminal C-123

    Courtesy of CHRYSLER CORP.
22. STEP 22. Check the shift switch assembly. 

    Refer to TRANSAXLE CONTROL .

    Q: Is the switch operating properly? 

    YES  : Go to Step 23.

    NO:  Replace the shift switch assembly. Refer to TRANSAXLE CONTROL .

23. STEP 23. Measure the switch output voltage at PCM connector C-123. 
    1. Disconnect connector C-123 and measure at the harness side.
    2. Turn the ignition switch to the "ON" position.
       Fig 31: Locating PCM Connector Terminal C-123

       Courtesy of CHRYSLER CORP.
    3. Measure the voltage between terminal 110 and ground.
       • The voltage should measure battery positive voltage when the selector lever is downshift and hold.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the measured voltage battery positive voltage? 

    YES  : Go to  Step 26.

    NO:  Go to Step 24.

    Fig 32: Measuring Voltage Between Terminal 110 And Ground

    Courtesy of CHRYSLER CORP.
24. STEP 24. Check PCM connector C-123 and shift switch assembly connector C-132 for looser, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connectors and terminals in good condition? 

    YES  : Go to Step 25.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 33: Locating PCM Connector Terminal C-123

    Courtesy of CHRYSLER CORP.
    Fig 34: Identifying Shift Switch Assembly Connector Terminal C-132

    Courtesy of CHRYSLER CORP.
25. STEP 25. Check the harness for open circuit or short circuit to ground between shift switch assembly connector C-132 terminal 4 and PCM connector C-123 terminal 110. 

    Q: Is the harness wire in good condition? 

    YES  : Go to  Step 4.

    NO:  Repair or replace the harness wire.

    Fig 35: Locating Shift Switch Assembly Connector Terminal C-132

    Courtesy of CHRYSLER CORP.
    Fig 36: Locating PCM Connector Terminal C-123

    Courtesy of CHRYSLER CORP.
26. STEP 26. Check PCM connector C-123 for looser, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connector and terminals in good condition? 

    YES  : Go to  Step 4.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 37: Locating PCM Connector Terminal C-123

    Courtesy of CHRYSLER CORP.