Diagnostic Test

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Ignition on
2. With the scan tool, read DTCs and record on the repair order.
  NOTE:
  It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data.
  
  Is the DTC active or pending?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK FOR OTHER DTCS
1. Refer to the recorded DTCs.
  Are there any Communication DTCs active or pending?
  
  Yes
  - Perform the applicable diagnostic procedure(s). Refer to DTC INDEX - 2500 HD .
  No
  - Go To 3
CHECK FOR INTELLIGENT BATTERY SENSOR CIRCUIT DTCS SET IN THE BODY CONTROL MODULE
Are any Intelligent Battery Sensor Circuit DTCs set in the Body Control module?

Yes
- Diagnose the appropriate Intelligent Battery Sensor Circuit DTC in the Body Control module. Refer to DTC INDEX - 2500 HD .
No
- Go To 4
VERIFY THE CORRECT BATTERY IS INSTALLED
1. Verify that the correct Battery is installed in the vehicle.
  Is the correct Battery installed?
  
  Yes
  - Replace the Intelligent Battery Sensor (IBS) in accordance with the Service Information. Refer to SENSOR, INTELLIGENT BATTERY (IBS), REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replace the Battery. Refer to BATTERY, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .