P0487 on Toyota
Exhaust Gas Recirculation Throttle Position Control Circuit "A"
P0487 on Toyota vehicles indicates exhaust gas recirculation throttle position control circuit "a". Au7o has documented this code across 1 Toyota model — most commonly on RAV4. Fault in the EGR throttle control circuit A. Some EGR systems use an intake/EGR throttle actuator to create the pressure difference needed for EGR flow; the PCM detects a circuit fault in that actuator's control circuit A. Typical repair costs on Toyota range from $350 to $1,500, depending on the specific model and root cause.
Common Causes of P0487
- •Failed EGR throttle actuator/motor
- •Open or shorted control wiring (circuit A)
- •Corroded or loose connector
- •Carbon binding the throttle plate
- •Faulty PCM driver (rare)
P0487 on Toyota by Model
Toyota RAV4(1 issue)
- Hybrid EGR Cooler/Valve Clogging and Coolant Leak on A25A-FXS 2.5L (White Smoke, Power Loss)2019-2025
The Dynamic Force A25A-FXS 2.5L hybrid uses a water-cooled EGR (exhaust gas recirculation) cooler and valve to lower combustion temperatures for efficiency. On the XA50 RAV4 Hybrid, the EGR cooler is prone to two failure modes: internal coolant leakage (coolant gets into the exhaust/intake, producing clouds of white smoke and slowly drinking coolant), and heavy soot/tar packing of the cooler passages and EGR valve that clogs the system. Owners and teardown reports document the EGR system becoming caked with carbon by roughly 60k-80k miles, and a stuck or clogged valve causes rough running, hesitation, and noticeable power loss. The condition can also throw EGR-related check-engine codes. It is a high-search hybrid-specific concern because it affects the most popular powertrain in the lineup and the repair is labor-intensive.
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View P0487 across all makes →Frequently Asked Questions
What does P0487 mean on Toyota?▼
P0487 stands for "Exhaust Gas Recirculation Throttle Position Control Circuit "A"." Fault in the EGR throttle control circuit A. Some EGR systems use an intake/EGR throttle actuator to create the pressure difference needed for EGR flow; the PCM detects a circuit fault in that actuator's control circuit A. On Toyota specifically, this code is documented across 1 model.
What causes P0487 on Toyota vehicles?▼
Common causes on Toyota: Failed EGR throttle actuator/motor, Open or shorted control wiring (circuit A), Corroded or loose connector, Carbon binding the throttle plate, Faulty PCM driver (rare). Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0487 on a Toyota?▼
Repair costs on Toyota range from $350 to $1,500, depending on the specific model and root cause.
Which Toyota models have P0487 documented?▼
Au7o has documented P0487 on 1 Toyota model: RAV4.