Diagnostic Test

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

ENGINE DTCS PRESENT
1. With the scan tool, read PCM or ECM DTCs.
  Are there any Powertrain Control Module (PCM) or Engine Control Module (ECM) 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
CHECK THE (K321) BTSI CONTROL CIRCUIT

Fig 1: Checking BTSI Control Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off to the lock position.
2. Disconnect the Shifter Lever Assembly harness connector.
3. Ignition on, engine not running.
4. With the scan tool under WIN, actuate the BTSI.
  NOTE: Check connectors - Clean/repair as necessary.
5. Using a 12-volt test light connected to ground, check the (K321) BTSI Control circuit.
  Does the test light illuminate brightly while cycling on and off on all (K321) BTSI Control circuit?
  
  Yes
  - 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 .
  No
  - Go to step 3
(K321) BTSI CONTROL CIRCUIT SHORT TO GROUND

Fig 2: Checking BTSI Control Circuit Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off to the lock position.
2. Disconnect the WIN harness connector.
  NOTE: Check connectors - Clean/repair as necessary.
3. Measure the resistance 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 ground.
  - Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
  No
  - Go to step 4
(K321) BTSI CONTROL CIRCUIT OPEN

Fig 3: Checking BTSI Control Circuit Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off to the lock position.
  NOTE: Check connectors - Clean/repair as necessary.
2. Measure the resistance of the (K321) BTSI Control circuit between the Shifter Lever Assembly harness connector and the WIN harness connector.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the (K321) BTSI Control circuit for an open.
  - Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
  No
  - Go to step 5
(K321) BTSI CONTROL CIRCUIT SHORTED TO VOLTAGE

Fig 4: Checking BTSI Control Circuit Shorted 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 6
WIRELESS IGNITION NODE (WIN)
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 Wireless Ignition Node in accordance with the Service Information.
  - Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .