Diagnostic Test

WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on.
2. Using the scan tool, record and erase the Radio DTCs.
3. Turn the Radio on.
4. Adjust the speakers to the rear and center.
5. Using the scan tool, read the active Radio DTCs.
  Does the scan tool read: B1408-12-REAR LEFT AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY?
  
  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.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK FOR VOLTAGE ON THE (X205) LEFT REAR SPEAKER (+) CIRCUIT
1. Turn the ignition off.
2. Disconnect the Radio C1 harness connector.
3. Disconnect the Left Rear Speaker harness connector.
4. Turn the ignition on.
5. Measure the voltage between ground and the (X205) Left Rear Speaker (+) circuit.
  Is there any voltage present?
  
  Yes
  - Repair the (X205) Left Rear Speaker (+) circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK FOR VOLTAGE ON THE (X295) LEFT REAR SPEAKER (-) CIRCUIT
1. Measure the voltage between ground and the (X295) Left Rear Speaker (-) circuit.
  Is there any voltage present?
  
  Yes
  - Repair the (X295) Left Rear Speaker (-) circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Radio in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .