Engine warning light and throttle codes P2100 / P2111 on the 1.8 hybrid (2ZR-FXE)

Engine / equipment

Fourth-generation 1.8 hybrid (2ZR-FXE): Corolla hybrid and Prius

Period mentioned

2016–2024

Symptoms

The engine warning light (MIL) comes on. The engine computer stores codes P210015 (throttle actuator motor circuit shorted to battery or open), P210019 (throttle actuator motor current too high) or P211172 (throttle stuck open).

Possible cause described

Toyota USA bulletin T-SB-0016-24 (Corolla hybrid 2020–2024, Prius 2016–2022 and Prius Prime) says Toyota changed the engine computer logic to reduce the chance of these codes setting; the repair is to reprogram the computer, not to replace parts.

Check for the garage

Read the full codes (with their last two digits) and ask Toyota whether there is a newer engine-computer program for your VIN before replacing the throttle body. If the code returns after reprogramming, check the throttle connector and wiring.

Cost cited in the source

In the US the reprogramming is covered by the emissions warranty; in Europe, ask Toyota.A rough figure from the original database, not an up-to-date quote.

Sources from the original database