P062B: Internal Control Module Fuel Injector Control Performance
2 vehicles · 1 makes
Most Reported On
P062B is an OBD-II diagnostic trouble code meaning “Internal Control Module Fuel Injector Control Performance.” This code indicates the engine computer (ECM/PCM) detected an internal performance fault within its own fuel injector control circuitry. The module continuously self-tests its ability to properly drive and monitor the fuel injectors. Because the fault is internal to the controller, it can cause sudden and serious drivability problems such as misfires, stalling, or no-start without warning. This code is most commonly reported on 2014-2020 Toyota Tundra, and 2017-2020 Toyota Sienna (L, LE, SE, XLE, Limited).
Common Causes
Diagnostic Tools
This is a powertrain code, so a basic OBD-II reader can read it. These read P062B.
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 P062B mean?
P062B stands for "Internal Control Module Fuel Injector Control Performance." This code indicates the engine computer (ECM/PCM) detected an internal performance fault within its own fuel injector control circuitry. The module continuously self-tests its ability to properly drive and monitor the fuel injectors. Because the fault is internal to the controller, it can cause sudden and serious drivability problems such as misfires, stalling, or no-start without warning.
What are the most common causes of P062B?
The most common causes of P062B are: Internal ECM/PCM fault, Low or unstable battery/system voltage, Faulty ECM ground or power connections, Recent reprogramming/software issue, Corroded ECM connectors, Wiring faults affecting module power supply. The specific cause varies by vehicle.
How much does it cost to fix P062B?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by P062B?
Au7o has documented P062B across 2 vehicle models from 1 manufacturers: Toyota.
Sources (6)
- RecallToyota Tundra Fuel Pump Recall - Asbury Auto
- ForumFuel pump recall...more Toyotas added to include 18-20 Tundra
- articleToyota Fuel Pump Recall Isn't Adequate, Alleges Lawsuit - CarComplaints
- RecallNHTSA Recall 20V-682 — Fuel Pump May Fail (Toyota Sienna and others)
- RecallDENSO International America — Recall 20E085 fuel pump (NHTSA PDF)
- articleToyota Sienna Fuel Pump Recall (20TA02 / 20V-682) overview
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.