Diagnostic Test

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

HIGH TEMPERATURE OPERATION

NOTE:

This DTC is an informational DTC designed to aid the Technician in diagnosing shift quality complaints.

NOTE:

This DTC indicates that the transmission has been operating in the "Overheat" shift schedule which may generate a customer complaint.

NOTE:

The customer driving patterns may indicate the need for an additional transmission oil cooler.

NOTE:

If the Transmission has experienced a catastrophic failure, the Transmission Cooler must be replaced.

Verify proper Engine cooling system operation which would affect proper transmission operation.
Verify proper operation of the Transmission Bypass Cooler Valve (Thermostat).
Verify the Transmission Cooler and Cooler Lines are not restricted.
Verify proper torque converter clutch operation.
With the scan tool, check the Event Data to help identify the conditions in which the DTC was set.
Were any of the above problems identified as the probable cause?

Yes
- Repair the cause of transmission overheating. Perform the PRELIMINARY CHECKS procedure. Refer to DIAGNOSIS AND TESTING . Make sure to check for any Service Bulletins pertaining to this problem.
- Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
No
- Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
- Test Complete.