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 2017-2020 Toyota Sienna (L, LE, SE, XLE, Limited), and 2014-2020 Toyota Tundra.
Common Causes
Diagnostic Tools
To diagnose P062B, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
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- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all 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 diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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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)
- 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
- 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
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.