Title 13, California Code Regulations, Section 1968.2
Malfunction and Diagnostic System Requirements for 2004 and Subsequent Model-Year Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles and Engines(OBD II). OAL-Approved Final Regulation Order for OBD II and Emission Warranty Regulations: approved on November 9, 2007.
« (2) MIL and Fault Code Requirements | 目录 | (2.2) MIL Illumination and Fault Code Storage Protocol »
(2.1) MIL Specifications
(2.1.1)
The MIL shall be located on the driver’s side instrument panel and be of sufficient illumination and location to be readily visible under all lighting conditions and shall be amber in color when illuminated. The MIL, when illuminated, shall display the phrase “Check Engine” or “Service Engine Soon”. The word “Powertrain” may be substituted for “Engine” in the previous phrases. Alternatively, the International Standards Organization (ISO) engine symbol may be substituted for the word “Engine” or for the entire phrase.
(2.1.2)
The MIL shall illuminate in the key on, engine off position before engine cranking to indicate that the MIL is functional. For all 2005 and subsequent model year vehicles, the MIL shall continuously illuminate during this functional check for a minimum of 15–20 seconds. During this functional check of the MIL, the data stream value for MIL status shall indicate commanded off (see section (f)(g)(4.2)) unless the MIL has also been commanded on for a detected malfunction. 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 each driving cycle (e.g., due to an engine stall or other non-commanded engine shutoff).
(2.1.3)
At the manufacturer’s option, the MIL may be used to indicate readiness status in a standardized format (see section(g)(4.1.3)) in the key on, engine off position.
(2.1.4)
A manufacturer may request Executive Officer approval to also use the MIL to indicate which, if any, fault codes are currently stored (e.g., to “blink” the stored codes). The Executive Officer shall approve the request upon determining that the manufacturer has demonstrated that the method used to indicate the fault codes will not be activated during a California Inspection and Maintenance test or during routine driver operation.
(2.1.5)
The MIL may not be used for any purpose other than specified in this regulation.
« (2) MIL and Fault Code Requirements | 目录 | (2.2) MIL Illumination and Fault Code Storage Protocol »
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