Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 2
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
SHIFT LEVER ASSEMBLY (FLOOR SHIFT) / AUTOSTICK (ERS) SWITCH (COLUMN SHIFT)
1. Turn the ignition off.
2. Connect a fused jumper wire between the (T5) AutoStick Upshift Signal circuit and the (Z65) Ground circuit in the Shift Lever Assembly / AutoStick (ERS) Switch harness connector.
3. Turn the ignition on.
4. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 3
  No
  - Replace the Shift Lever Assembly (Floor Shift) / AutoStick® (ERS) Switch (Column Shift) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(T5) AUTOSTICK UPSHIFT SIGNAL CIRCUIT OPEN
1. Turn the ignition off.
2. Disconnect the BCM G harness connector.
3. Measure the resistance of the (T5) AutoStick Upshift Signal circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the open in the (T5) AutoStick Upshift Signal circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(Z65) GROUND CIRCUIT OPEN
1. Measure the resistance of the (Z65) Ground circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Body Control Module in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Repair the open in the (Z65) Ground Switch MUX Return circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .