Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM10000000101LN
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: P062F44; Internal Control Module EEPROM Data Memory Failure; 2017 - 2020 MY Sienna [08/2016 -        ]

DTC

P062F44

Internal Control Module EEPROM Data Memory Failure

DESCRIPTION

The ECM monitors its internal operation and stores this DTC when it detects an internal malfunction.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P062F44

Internal Control Module EEPROM Data Memory Failure

An ECM internal error (EEPROM) (1 trip detection logic).

ECM

Comes on

DTC stored

SAE Code

P062F

MONITOR DESCRIPTION

The ECM monitors its internal operation. If the internal operation is malfunctioning, the ECM illuminates the MIL and store this DTC.

MONITOR STRATEGY

Related DTCs

P062F: Internal control module EEPROM error functional

Required Sensors/Components (Main)

ECM

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous: Case 1, Case 2

Once per driving cycle: Case 3

Duration

-

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

All

Monitor runs whenever the following DTCs are not stored

None

Case 1

All of the following conditions are met

-

Permanent Fault Code

Not stored

OBDII system commands

Store

Battery voltage

8 V or higher

Case 2

All of the following conditions are met

-

Permanent Fault Code

Stored

OBDII system commands

Clear

Battery voltage

8 V or higher

Case 3

Battery voltage

8 V or higher

TYPICAL MALFUNCTION THRESHOLDS

Case 1

Either of the following conditions 1 or 2 is met

2 data or more

1. One of the following conditions (a), (b) or (c) is met

More then 10 times

(a) EEPROM communication timeout

Occurred

(b) Permanent Fault Code

Not stored

(c) Permanent Fault Code

Not equal to commanded Fault Code

2. Storing processing is more than 0.096 seconds

Not completed

Case 2

Either of the following conditions 1 or 2 is met

2 data or more

1. Either of the following conditions (a) or (b) is met

More then 10 times

(a) EEPROM communication timeout

Occurred

(b) Permanent Fault Code

Stored

2. Clearing processing is more than 0.096 seconds

Not completed

Case 3

Either of the following conditions is met

1 or 2

1. Either of the following conditions (a) or (b) is met

2 data or more

(a) EEPROM communication timeout (more than 10 times)

Occurred

(b) Reading processing is more than 0.096 seconds

Not completed

2. Permanent Fault Code data (more than 10 times)

Mismatch

CONFIRMATION DRIVING PATTERN

HINT:

  • After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
  • When clearing the permanent DTCs, refer to the Clear Permanent DTC procedure.

    Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DTC CHECK / CLEAR

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for 2 minutes or more.
  5. Turn the ignition switch to ON and turn the Techstream on.
  6. Wait for 11 seconds or more with the ignition switch to ON. [*1]

    HINT:

    [*1] : Normal judgment procedure.

    The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

  7. Enter the following menus: Powertrain / Transmission / Utility / All Readiness.
  8. Input the DTC: P062F44.
  9. Check the DTC judgment result.

    Techstream Display

    Description

    NORMAL

    • DTC judgment completed
    • System normal

    ABNORMAL

    • DTC judgment completed
    • System abnormal

    INCOMPLETE

    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    N/A

    • Unable to perform DTC judgment
    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.

CAUTION / NOTICE / HINT

NOTICE:

  • Perform the universal trip to clear permanent DTCs.

    Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DTC CHECK / CLEAR

  • Perform registration and/or initialization when parts related to the automatic transaxle are replaced.

    Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: PRECAUTION

  • After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here 2017 - 2020 MY Sienna [08/2016 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

PROCEDURE

1.

READ OUTPUT DTC (DTC P062F44)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Clear the DTCs.

(e) Turn the ignition switch off and turn the Techstream off.

(f) Disconnect the Techstream.

(g) Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.

(h) Connect the cable to the negative (-) battery terminal.

(i) Connect the Techstream to the DLC3.

(j) Turn the ignition switch to ON.

(k) Turn the Techstream on.

(l) Start the engine and wait 30 seconds or more.

(m) Enter the following menus: Powertrain / Transmission / Trouble Codes.

(n) Read the DTCs.

Result

Proceed to

DTCs are not output

A

DTC P062F44 is output

B

A

CHECK FOR INTERMITTENT PROBLEMS

B

2.

REPLACE ECM

(a) Replace the ECM.

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): ECM: COMPONENTS

NEXT

PERFORM A/T CODE REGISTRATION