DTC P062F-44: Internal Control Module EEPROM Data Memory Failure [11/2016 - ]: Procedure

WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

READ OUTPUT DTC (DTC P062F-44)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Clear the DTCs.
Refer to DTC CHECK / CLEAR [11/2016 - ]

HINT:

Write down the currently output DTCs before clearing them.

Powertrain > Transmission > Clear DTCs
Turn the ignition switch off and turn the Techstream off.
Disconnect the Techstream.
Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
Connect the cable to the negative (-) battery terminal.
Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Powertrain / Transmission / Trouble Codes.
Powertrain > Transmission > Trouble Codes

Read the DTCs using the Techstream.

Result

Result	Proceed to
DTCs are not output	A
DTC P062F-44 is output	B

Result: 1

CHECK FOR INTERMITTENT PROBLEMS. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ]

Result: 2

See step 2

REPLACE ECM

Replace the ECM.

Refer to COMPONENTS [11/2016 - ]

Result

Proceed to
NEXT

Result: 1

PERFORM REGISTRATION. Refer to REGISTRATION [11/2016 - ]