P062F: Internal Control Module EEPROM Error
2 vehicles · 2 makes
Most Reported On
P062F is an OBD-II diagnostic trouble code meaning “Internal Control Module EEPROM Error.” P062F sets when the ECM, TCM, or another control module detects a fault in its internal EEPROM (Electrically Erasable Programmable Read-Only Memory). The EEPROM stores calibration settings, learned/adaptive values, and software parameters; when the module's self-test finds this memory cannot be reliably read or written, it stores P062F. It is an internal module fault, not an external circuit issue. This code is most commonly reported on 2017-2019 Toyota Highlander (LE, XLE, SE, Limited, Limited Platinum), and 2019-2020 Honda Civic (Sedan, Coupe, Hatchback, Sport, EX, Touring, Si).
Common Causes
Diagnostic Tools
This is a powertrain code, so a basic OBD-II reader can read it. These read P062F.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple code reader for engine (P) codes on many compatible OBD-II vehicles. It does not support every vehicle or hybrid/EV application, and it does NOT read body, chassis or network codes; confirm exact-vehicle compatibility before buying.
- Read & clear engine (P) codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth scanner with a companion app that reads beyond the engine module — ABS, SRS and transmission — plus manufacturer-specific codes on many vehicles.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X V3.0 Elite OBD-II Scanner
by LAUNCH
Handheld scanner covering the four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
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FAQ
What does P062F mean?
P062F stands for "Internal Control Module EEPROM Error." P062F sets when the ECM, TCM, or another control module detects a fault in its internal EEPROM (Electrically Erasable Programmable Read-Only Memory). The EEPROM stores calibration settings, learned/adaptive values, and software parameters; when the module's self-test finds this memory cannot be reliably read or written, it stores P062F. It is an internal module fault, not an external circuit issue.
What are the most common causes of P062F?
The most common causes of P062F are: Internal control module (ECM/TCM) hardware/memory failure, Corrupted EEPROM data from an interrupted or failed reflash, Voltage spikes or unstable power/ground to the module, Water intrusion or corrosion in the module, Aged module with degraded memory cells. The specific cause varies by vehicle.
How much does it cost to fix P062F?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by P062F?
Au7o has documented P062F across 2 vehicle models from 2 manufacturers: Honda, Toyota.
Sources (6)
- RecallToyota Highlander 2019 Fuel Pump Recall — NHTSA Campaign 20V012000 (Justia)
- RecallRecall Report RCLRPT 20V012 (NHTSA document)
- articleWhat You Need To Know About the Denso Fuel Pump Recall — Car Talk
- RecallNHTSA Part 573 Safety Recall Report 23V-858 (Denso fuel pump)
- ForumFuel Pump Recall Coming for Certain '19-20 Civics — CivicX
- articleHonda Civic Fuel Pump Recall: Critical Safety Information — Kemso Racing
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.