Diagnostic Test

ENGINE DTCs PRESENT
1. With the scan tool, read Engine DTCs.
  Are there any Engine brake DTCs present?
  
  Yes
  - Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure and perform the appropriate diagnostic procedure.
  - Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure
  No
  - Go to step 2
WIRELESS IGNITION NODE (WIN) DTCS PRESENT
1. With the scan tool, read Wireless Ignition Node (WIN) DTCs.
  Are there any Wireless Ignition Node (WIN) DTCs present?
  
  Yes
  - Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure and perform the appropriate diagnostic procedure.
  - Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure
  No
  - Go to step 3
(K321) BTSI CONTROL CIRCUIT SHORT TO VOLTAGE

Fig 1: Checking Brake Transmission Shift Interlock Control Circuit Short To Voltage
Courtesy of CHRYSLER LLC
1. Turn the ignition off to the lock position.
2. Disconnect the Shifter Lever Assembly harness connector.
3. Disconnect the Wireless Ignition Node (WIN) harness connector.
4. Turn the ignition on.
  NOTE: Check connectors - Clean/repair as necessary.
5. Measure the voltage between ground and the (K321) BTSI Control circuit.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Repair the (K321) BTSI Control circuit for a short to voltage.
  - Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure
  No
  - Go to step 4
SHIFTER LEVER ASSEMBLY
1. Using the schematics as a guide, inspect the wiring and connectors. Repair as necessary. Pay particular attention to all power and ground circuits.
  Repair
  - Replace the Shifter Lever Assembly in accordance with the Service Information.
  - Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure