Toyota: More Today Trouble Over Hino Motors Emission Fraud

The Ministry of Land, Infrastructure, Transport and Tourism has been found more wrongdoings related to the Hino Motors engine emissions certification fraud, on top of previously announced offenses on 4 March and 2 August 2022, Hino-owner Toyota Motor said this morning in Japan.

The added “facts following were found in the emission performance deterioration endurance tests conducted by Hino on all of the company’s vehicle engine models subject to the 2016 emission regulations in Japan.” Thus the embarrassing anti-environmental aspects of the cheating scandal are still expanding. (AutoInformed: Toyota Motor FY Q1 Profit Drop Spooks Market)

MITI Findings

1. At some measurement points, the number of emission gas measurements was insufficient when two or more measurements were required.
2. The deterioration correction values were calculated based on data from a single measurement, whereas these figures need to be calculated based on data of multiple measurements.

Impact on Toyota vehicles and the company’s actions

The engine models subject to the bad behaviors identified this time include the 4-liter diesel engine model ‘N04C (with HC-SCR system)’, for which no wrongdoings have been confirmed so far. This engine model is used in the following Toyota vehicles listed below, which are OEM-supplied vehicle models by Hino.

Hino Motors Hamura Plant

• Vehicle model: 2-ton “Dyna” and “Toyoace”* (Cargo, Dump. Also sold as Hilux in some markets)
• Production period: Since the model year change conducted in May 2019
• Number of units produced: ~19,000 units
• * Sales of the Toyoace model have already ended.

The seventh-generation 2015 Hilux was the first to not be produced in Japan, with most of the vehicles being produced in Thailand, South Africa and Argentine for delivery to counties in their own regions, and with some production in Malaysia, Pakistan and Venezuela.