Diagnostic Test

ENGINE CONTROL MODULE (ECM) or POWERTRIAN CONTROL MODULE (PCM) DTCs PRESENT
1. With the scan tool, read ECM or PCM DTCs.
  Are there any brake DTCs present?
  
  Yes
  - Refer to DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing for gas engine applications.
  No
  - Go to step 2
WIN DTCS PRESENT
1. With the scan tool, read WIN DTCs.
  Are there any WIN DTCs present?
  
  Yes
  - Refer to DTC-Based Diagnostics/NODE, Wireless Ignition (WIN) - Diagnosis and Testing and peform the appropriate diagnostic procedure.
  No
  - Go to step 3
(K321) BTSI CONTROL CIRCUIT SHORTED TO VOLTAGE

Fig 1: Checking BTSI Control Circuit For 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 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 the 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 the NAG1 TRANSMISSION VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .