Possible Causes

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to  PRE-DIAGNOSTIC CHECK OUT  ). 

1. 1)  POSSIBLE CAUSES 

   This DTC is an informational DTC only.

   This DTC is set due to a momentary loss of power and/or the ground circuits to the PCM.

   Below are a list of possible causes associated with this DTC.

   Battery was disconnected.

   The BATTERY DISCONNECT feature on the scan tool was performed.

   The QUICK LEARN feature on the scan tool was performed.

   PCM was replaced or disconnected.

   Were any of the above possible causes performed? 

   Yes 

   1. This is the cause of the DTC. Erase the DTC and return vehicle to customer.
   2. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 .

   No 

   1. Go To step  2).
2. 2)  INTERMITTENT WIRING AND CONNECTORS 

   The conditions necessary to set this DTC are not present at this time.

   Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.

   NOTE: Check all power and ground circuits to the PCM for a intermittent or high resistance condition.

   Wiggle the wires while checking for shorted and open circuits.

   With the scan tool, check the EATX DTC EVENT DATA to help identify the conditions in which the DTC was set.

   Where there any problems found? 

   Yes 

   1. Repair as necessary.
   2. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 .

   No 

   1. Test Complete.