P062B on Toyota
Internal Control Module Fuel Injector Control Performance
P062B on Toyota vehicles indicates internal control module fuel injector control performance. Au7o has documented this code across 1 Toyota model — most commonly on RAV4. 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.
Common Causes of P062B
- •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
P062B on Toyota by Model
Toyota RAV4(1 issue)
- Denso low-pressure fuel pump impeller failure causing engine stall (Recall 20V-012 / 20TA02)2019-2020
RAV4s built with Denso low-pressure in-tank fuel pumps are part of Toyota's massive fuel pump recall (NHTSA 20V-012, Toyota 20TA02, later expanded). The impeller was molded from lower-density resin that can absorb fuel, swell and deform, then bind against the pump body and stop spinning. The result is loss of fuel delivery: rough running, hard starts, hesitation, illuminated warning lights, and in the worst case an engine stall while driving at speed, raising crash risk. The campaign grew to millions of Toyota/Lexus vehicles across 2013-2020 model years; RAV4 coverage centers on 2019-2020.
Looking for P062B on a different make?
View P062B across all makes →Frequently Asked Questions
What does P062B mean on Toyota?▼
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. On Toyota specifically, this code is documented across 1 model.
What causes P062B on Toyota vehicles?▼
Common causes on Toyota: Internal ECM/PCM fault, Low or unstable battery/system voltage, Faulty ECM ground or power connections, Recent reprogramming/software issue, Corroded ECM connectors. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P062B on a Toyota?▼
Repair costs vary widely depending on the root cause and specific Toyota model.
Which Toyota models have P062B documented?▼
Au7o has documented P062B on 1 Toyota model: RAV4.