Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup and 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

When Monitored:

Continuously with the key-on.

Set Condition:

This fault is set when any other values other than 4.88, 4.44, 4.10, or 3.73 is received, or the message is not received for more than 10.5 seconds.

Possible Causes
TIPM CAN BUS DTCS PRESENT
ECM DTCS PRESENT
TRANSMISSION CONTROL MODULE

Always perform the AS68RC Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to Standard Procedure .

CHECK FOR TIPM CAN BUS DTCS
1. With the scan tool, read TIPM DTCs.
  Are there any TIPM CAN BUS DTCs present?
  
  Yes
  - Refer to TOTALLY INTEGRATED POWER MODULE (TIPM) - ELECTRICAL DIAGNOSTICS - 1500, 2500 & 3500 or TOTALLY INTEGRATED POWER MODULE (TIPM) - ELECTRICAL DIAGNOSTICS - 3500 CAB & CHASSIS, 4500 & 5500 and perform the appropriate diagnostic procedure.
  - Perform AS68RC VERIFICATION TEST. Refer to Standard Procedure .
  No
  - Go To 2.
CHECK IF ENGINE DTCS ARE PRESENT
1. With the scan tool, read engine DTCs.
  Are there any engine DTCs present?
  
  Yes
  - Refer to 6.7L DIESEL - DIAGNOSTIC CODE INDEX - 2500 & 3500 or 6.7L DIESEL - DIAGNOSTIC CODE INDEX - 3500 CAB & CHASSIS, 4500 & 5500 and perform the appropriate diagnostic procedure.
  - Perform AS68RC VERIFICATION TEST. Refer to Standard Procedure .
  No
  - Using the schematics as a guide, check the Transmission Control Module (TCM) 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 and program the TCM in accordance with the Service Information.
  - Perform AS68RC VERIFICATION TEST. Refer to Standard Procedure .