Toyota Venza: Internal Control Module EEPROM Error (P062F)

Toyota Venza Service Manual / 1ar-fe Engine Control / Sfi System / Internal Control Module EEPROM Error (P062F)

DESCRIPTION

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

DTC No.	DTC Detection Condition	Trouble Area
P062F	An ECM internal error (EEPROM) (1 trip detection logic)	ECM

MONITOR DESCRIPTION

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

MONITOR STRATEGY

Related DTCs	P062F: Internal Control Module EEPROM Error
Required Sensors/Components (Main)	ECM
Required Sensors/Components (Related)	-
Frequency of Operation	Once per driving cycle
Duration	3 times
MIL Operation	Immediate
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored	None
All of the following conditions are met	-
Time after engine start	10 seconds or more
Battery voltage	8 V or higher
Ignition switch	ON

TYPICAL MALFUNCTION THRESHOLDS

Permanent fault code data

Mismatch (3 times or more)

CONFIRMATION DRIVING PATTERN

Connect the Techstream to the DLC3.
Turn the ignition switch to ON and turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the Techstream off.
Turn the ignition switch 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 and turn the Techstream on.
Start the engine and wait 30 seconds or more.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P062F.

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 is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs (See page ).
HINT:
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.

CAUTION / NOTICE / HINT

NOTICE:

There is a possibility that the DTC P062F is issued from the ECUs of the ECM and TCM. Use Techstream to conduct a health check to confirm which ECU the DTC is issued from and then inspect the related system.

HINT:

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1.	READ OUTPUT DTC (DTC P062F)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Clear the DTC (See page ).

(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) Wait 30 seconds or more.

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

(n) Read the DTCs.

Result	Proceed to
DTC is not output	A
DTC P062F is output	B

CHECK FOR INTERMITTENT PROBLEMS

REPLACE ECM

Starter Relay Circuit High (P0617)

MONITOR DESCRIPTION While the engine is being cranked, battery voltage is applied to terminal STA of the ECM. If the ECM detects the Starter Control (STA) signal while the vehicle is being driven ...

VIN not Programmed or Mismatch - ECM / PCM (P0630)

MONITOR DESCRIPTION DTC P0630 is stored when the Vehicle Identification Number (VIN) is not stored in the Engine Control Module (ECM) or the input VIN is not accurate. Input the VIN with the Tech ...

Other materials about Toyota Venza:

Speaker Circuit
DESCRIPTION If there is a short in a speaker circuit, the radio and display receiver assembly detects it and stops output to the speakers. Thus sound cannot be heard from the speakers even if there is no malfunction in the radio and display ...

Diagnosis System
DIAGNOSIS SYSTEM 1. ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM (a) CAN No. 1 Bus (1) ECM (2) Main body ECU (Driver side junction block) (3) Combination meter (4) Power steering ECU (5) Air conditioning amplifier*3 (6) Center air ...

Open in CAN Main Bus Line
DESCRIPTION There may be an open circuit in the CAN bus main wire and/or the DLC3 branch wire when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 70 Ω or higher. Symptom Trouble Area Resista ...