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2.1.1 Move SAE J1889 to 2.2.1 – Related Publications
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2.1.1 Delete SAE J1050 Describing and Measuring the Driver’s Field of View
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2.2.1 Changed SAE J590 to SAE J1690 and Title to Flashers
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2.2.2 Added “Federal Motor Carrier Safety Administration DOT 49CFR Subtitle B Chapter III Part 393”
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2.2.2 Deleted “Federal Highway Administration 49CFR Part 393 Subpart B”
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2.2.3 and 2.2.4 Added addresses for TTMA and TMC
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3.1 Effective Projected Luminous Lens Area - Replace definition with the two part definition used in FMVSS 571.108
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3.2 Added Light Emitting Surface
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3.3 Delete current definition “Stop Lamp - “A lamp giving a steady light to the rear of a vehicle to indicate the intention of the operator of the vehicle to stop or diminish speed by application of the service brakes.”
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3.3 Add “Stop Signal Function - A steady light to the rear of a vehicle to indicate the intentional deceleration or the stopping of a vehicle.”
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3.4 Added “Stop Lamp - A device providing the stop signal function.”
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3.5 Added Turn Signal Function
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3.6 Added new definition for Turn Signal Lamp
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4.1 Changed a), b) and 4.2 to 4.1.1, 4.1.2 and 4.1.3 respectively and reworded for clarity and consistency
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4.1.1 and 4.1.2 Added “from the lighted edge of a headlamp as measured from the optical center of the turn signal” in accordance with SAE J759
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5.1.5.2 Remove “taken”
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5.1.5.3 Delete Reference to Multiple Lamps
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5.1.5.3 Added “steady burning mode”
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5.1.5.4 Added “flashing mode” and provisions to measure lamps in the flashing mode based on ECE R6
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5.1.3.5.1 Delete section because of reference to multiple lamps
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5.1.5.3.2 Delete section because of reference to multiple lamps
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6.1.5 Photometry - Removed multiple lamp reference paragraph
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6.1.5 Photometry - Replace Table 1 - Photometric requirements with new style SAE Photometry Figures 5, 6 and 7
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6.1.5.1 Add “front”, “the stop or turn signal”
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6.1.5.1 Remove “major function”
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6.1.5.2 (Previously 6.1.5.3) Remove “permit the manufacturer to”
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6.1.5.4 Delete section as it pertains to DRL’s not Stop or Turn Signals
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6.1.5.5 Delete section as it pertains to DRL’s not Stop or Turn Signals
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6.5.1 Remove “so that the signal will be clearly visible”
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6.5.3.1 Change unobstructed projected area angle of visibility from 20 degrees inboard to 45 degrees. Change drawing from 20 to 45 degrees (to agree with FMVSS 571.108 Fig. 19 Visibility of Installed Lighting Devices (Lens Area Measurement Method)
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6.5.7.2 Remove section and reference specification for illuminated indicator
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6.5.7.3 Remove section and reference specification for illuminated indicator
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6.5.7.4 Remove section and reference to SAE J1050
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7.1.5 Change to - “The wiring design for the stop lamp circuit should have adequate capacity and sufficient wire gauge to support the lamps and anti-lock braking systems (ABS).”