Nissan Resolves Issues With Tailpipe Emission Diagnostic Equipment

SACRAMENTO, CA --- The California Air Resources Board said that it fined Nissan Motor Co. $4.4 million last month for "failing to meet requirements concerning the diagnostic equipment that monitors tailpipe emissions on most of its 2005-2007 models -- more than 450,000 vehicles." However, the automaker has resolved the issues.

by Staff

April 21, 2009

1 min to read

SACRAMENTO, CA --- The California Air Resources Board said that it fined Nissan Motor Co. $4.4 million last month for "failing to meet requirements concerning the diagnostic equipment that monitors tailpipe emissions on most of its 2005-2007 models -- more than 450,000 vehicles." However, the automaker has resolved the issues.

"Nissan has been cooperative during this investigation, and we are confident that the design process changes they implemented will prevent future problems," ARB Chair Mary Nichols said.

On-board diagnostic systems are incorporated into vehicle computers to ensure that tailpipe emissions stay at permissible levels. If a problem is detected, the system turns on a "check engine" light to alert the driver.

The ARB said it discovered Nissan's problems in 2007 during a routine compliance review. The problems concerned "inadequate monitoring of engine sensors that govern proper fuel system operation and whether monitoring takes place as frequently as required," the agency said.

Nissan's settlement with the ARB requires the company to pay $3 million to the California Air Pollution Control Fund, $1.2 million to the Environmental Education Initiative, and $200,000 to the National OBD (On-Board Diagnostics) Clearinghouse.

The Air Resources Board is a department of the California Environmental Protection Agency.

Topics:CARB Nissan Green Fleet

More Green Fleet

Rendering of electric vehicles charging beneath a solar-panel canopy, illustrating Inspiration Mobility Group’s acquisition of Electrada assets to expand commercial fleet electrification services.

Green Fleet•by News/Media Release•June 17, 2026

Inspiration Mobility Acquires Key Electrada Assets

Inspiration Mobility Group has acquired select assets of Electrada, adding the fleet electrification provider's team, technology, and charging infrastructure development capabilities to its energy management business.

Turning Connected Vehicle Data Into Decisions That Matter

Fleet leaders have more data than ever, but turning that data into clear, actionable decisions remains a challenge. This white paper shows how leading organizations are using connected vehicle data to improve safety, reduce costs, and optimize fleet performance. Learn how to turn insight into action across your fleet.

Are You Tracking Your Fleet's True Total Cost of Ownership?

Bobit Business Media surveyed 190 fleet professionals and found that while most fleets are tracking costs, fragmented systems and data gaps are keeping true TCO visibility out of reach. With rising pressure to control spend in an increasingly volatile environment, the gap between what fleets think they know and what the data actually shows is wider than you might expect. See how your peers are managing costs today and where the industry still has room to improve.

Hybrids: Electrification Without the Challenges

For fleet managers, fuel is one of the biggest line items in the budget — and it's one hybrids can shrink without changing how your people work. Download the eBook to see the numbers, understand the technology, and get a step-by-step guide to making the switch.