Diagnostic Test

WARNING: This page is about a different car, the 2015 RAM 1500. 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 and record on vehicle work order.
3. With the scan tool, erase DTCs.
4. Cycle the ignition from off to on.
5. With the scan tool, read EPS DTCs.
  Is the DTC 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.
CHECK FOR DTCS IN THE IPC
1. With the scan tool, read IPC in the CCN.
  Is the IPC reporting any DTCs?
  
  Yes
  - Perform the appropriate diagnostic procedure. Refer to DIAGNOSIS AND TESTING .
  No
  - Go To 3
CHECK OTHER MODULES FOR CAN BUS DTCS
1. With the scan tool, read the DTCs.
  Are there any CAN BUS DTCs present?
  
  Yes
  - Using the schematics as a guide, check the Instrument Panel Cluster (IPC) pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Instrument Panel Cluster (IPC) in accordance with the Service Information. Refer to REMOVAL .
  No
  - Go To 4
ELECTRIC POWER STEERING (EPS) MODULE
1. Using the schematics as a guide, check the Electric Power Steering (EPS) Module pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all Power, Ground and CAN circuits and repair as necessary.
2. Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
3. Turn the ignition on.
4. With the scan tool, read EPS DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Electric Power Steering (EPS) Module in accordance with the Service Information. Refer to GEAR, INDEPENDENT FRONT SUSPENSION, REMOVAL .
  - Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  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.