§ 1971. Engine Manufacturer Diagnostic System Requirements--2007 and Subsequent Model-Year Heav...
13 CA ADC § 1971Barclays Official California Code of Regulations
13 CCR § 1971
§ 1971. Engine Manufacturer Diagnostic System Requirements--2007 and Subsequent Model-Year Heavy-Duty Engines.
The purpose of this regulation is to establish requirements for engine manufacturer diagnostic systems (EMD systems) that are designed and installed by engine manufacturers on 2007 and subsequent model-year engines certified for sale in heavy-duty vehicles in California. The EMD systems, through the use of a computer(s), shall monitor emission systems in-use for the actual life of the engine and shall be capable of detecting malfunctions of the monitored emission systems, illuminating a malfunction indicator light (MIL) to notify the vehicle operator of detected malfunctions, and storing diagnosis information regarding the detected malfunctions.
Except as specified elsewhere in this regulation (title 13, CCR section 1971), all 2007 and subsequent model-year gasoline-fueled and diesel-fueled on-road heavy-duty engines shall be equipped with an EMD system and shall meet all applicable requirements of this regulation. [FN1]
(C) The EMD system shall be designed to operate, without any required scheduled maintenance, for the actual life of the engine in which it is installed and may not be programmed or otherwise designed to deactivate based on age and/or mileage of the vehicle during the actual life of the engine. This section is not intended to alter existing law and enforcement practice regarding an engine manufacturer's liability for an engine beyond its useful life, except where an engine has been programmed or otherwise designed so that an EMD system deactivates based on age and/or mileage of the engine.
1. The MIL shall be of sufficient illumination and location to be readily visible under all lighting conditions. The MIL, when illuminated, shall display a phrase or icon determined by the engine manufacturer to be likely to cause the vehicle operator to seek corrective action. In lieu of a dedicated MIL, engine manufacturers may utilize an existing warning light(s) to also satisfy the requirements of the MIL.
2. The MIL shall illuminate in the key on, engine off position before engine cranking to indicate that the MIL is functional. This functional check of the MIL is not required during vehicle operation in the key on, engine off position subsequent to the initial engine cranking of an ignition cycle (e.g., due to an engine stall or other non-commanded engine shutoff).
Once a malfunction has been detected, the EMD system shall illuminate the MIL in accordance with the engine manufacturer's existing practices for notifying vehicle operators and service technicians.
(B) Malfunction Criteria: If the engine is equipped with feedback control of the fuel pressure, the EMD system shall detect a malfunction of the fuel system when the feedback control system has used up all of the adjustment allowed by the engine manufacturer and cannot achieve the desired fuel pressure.
(A) Requirement: The EMD system shall monitor for malfunction of any electronic component/system that either provides input to (directly or indirectly) or receives commands from the on-board computer(s), and: (1) is defined by the engine manufacturer as emission-related, or (2) is used as part of the diagnostic strategy for any other emission-related monitored system or component.
2. Output Components/Systems: Where determined by the engine manufacturer to be feasible given existing hardware and software, the EMD system shall detect a malfunction of an output component/system when proper functional response of the component and system to computer commands does not occur or when a lack of circuit continuity or circuit fault occurs (e.g., short to ground or high voltage).
(g) Deficiencies. The Executive Officer may certify EMD systems installed on engines even though the systems do not comply with one or more of the requirements of title 13, CCR section 1971. In granting the certification, the Executive Officer shall consider the following factors: the extent to which the requirements of section 1971 are satisfied overall based on a review of the engine applications in question, the relative performance of the resultant EMD system compared to systems fully compliant with the requirements of section 1971, and a demonstrated good-faith effort on the part of the engine manufacturer to: (1) meet the requirements in full by evaluating and considering the best available monitoring technology; and (2) come into compliance as expeditiously as possible. Engine manufacturers shall not be subject to limitations on the number of granted deficiencies nor subject to fines for granted deficiencies.
Unless otherwise noted, all section references refer to section 1971 of title 13, CCR.
Credits
Note: Authority cited: Sections 39600, 39601, 43000.5, 43013, 43018, 43100, 43101 and 43104, Health and Safety Code. Reference: Sections 39002, 39003, 39010, 39018, 39021.5, 39024, 39024.5, 39027, 39027.3, 39028, 39029, 39031, 39032, 39032.5, 39033, 39035, 39037.05, 39037.5, 39038, 39039, 39040, 39042, 39042.5, 39046, 39047, 39053, 39054, 39058, 39059, 39060, 39515, 39600, 39601, 43000, 43000.5, 43004, 43006, 43013, 43016, 43018, 43100, 43101, 43102, 43104, 43105, 43105.5, 43106, 43150, 43151, 43152, 43153, 43154, 43155, 43156, 43204, 43211 and 43212, Health and Safety Code.
History
1. New section filed 12-27-2004; operative 1-26-2005 (Register 2004, No. 53).
This database is current through 4/26/24 Register 2024, No. 17.
Cal. Admin. Code tit. 13, § 1971, 13 CA ADC § 1971
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