P064F-UNAUTHORIZED SOFTWARE/CALIBRATION DETECTED

For a complete wiring diagram, refer to the Wiring Information.

When Monitored:
With the ignition on.
Set Condition:
The Powertrain Control Module (PCM) does not have a calibration installed, or has an unapproved calibration installed.

Possible Causes
POWERTRAIN CONTROL MODULE HAS NO SOFTWARE INSTALLED
SOFTWARE DOWNLOAD FAILED DURING THE DOWNLOAD PROCESS
POWERTRAIN CONTROL MODULE HAS UNAPPROVED SOFTWARE INSTALLED

1. NEW POWERTRAIN CONTROL MODULE

1.	If the PCM was replaced and not programmed this DTC will set.

2.	With a scan tool clear DTCs.

Has the PCM been replaced on this vehicle?

Yes

Program the Powertrain Control Module with the correct software.
Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

2. DOWNLOAD FAILED

1.	If the vehicle lost battery power or the scan tool was disconnected during programming, this DTC will set.

Was a software download interrupted during the download process?

Yes

Reprogram the Powertrain Control Module in accordance with the service information.
Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

3. UNAPPROVED SOFTWARE INSTALLED

1.	Unapproved software programmed into the Powertrain Control Module is not a warrantable repair.

If tests one and two do not apply, the vehicle has been programmed with unapproved software.

Yes

Reprogram the Powertrain Control Module with the correct software.
Perform the PCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).