UN R48 Supplement 7 (07 series) · UNECE Regulation No. 48 (ECE R48) — Uniform provisions concerning the approval of vehicles with regard to the installation of lighting and light-signalling devices.
UN R48 — Supplement 7 to the 07 series of amendments
Supplement 6 → 7
- What changed
- Paragraph 6.5.8. now lists paragraph 4.6.1.4. of the 01 series of amendments to UN Regulation No. 148 for the signal that activates the tell-tale.
- Paragraph 6.19.7.4. is reworded for the lamps that may be switched ON when daytime running lamps are switched ON.
- Why
- When the 01 series of amendments to UN Regulation No. 148 was introduced, the reference in paragraph 6.5.8. was not updated in parallel.
- The proposer states that the old text on daytime running lamps with other lamps was not clear.
Q1What changed6 changes
Signal that activates the direction-indicator tell-tale (para. 6.5.8.)
The operating tell-tale is mandatory for direction-indicator lamps of categories 1, 1a, 1b, 2a and 2b. It must be activated by the signal produced according to one of the items of a new list. The list gives paragraph 6.2.2. of UN Regulation No. 6 and paragraph 5.6.3. of the 00 series of amendments to UN Regulation No. 148. It also gives paragraph 4.6.1.4. of the 01 series of amendments to UN Regulation No. 148, or another suitable way. Before this supplement, the text referred to paragraph 5.6.3. of “UN Regulation No. [LSD]” and had no reference to the 01 series.
Rear position lamps and other lamps with daytime running lamps (para. 6.19.7.4.)
When daytime running lamps are switched ON, the rear position lamps may be switched ON. In addition, any other lamp(s) mentioned in paragraph 5.11. may also be switched ON. Before this supplement, the lamps referred to in paragraph 5.11. could be switched ON when the daytime running lamps were switched ON. If this option was chosen, at least the rear position lamps had to be switched ON.
Q2Why it changed
- Proposed by
- Informal Working Group on Simplification of Lighting and Light-Signalling Regulations (IWG SLR); experts from the International Automotive Lighting and Light-Signalling Expert Group (GTB)
- Working party
- GRE, 89th session (October 2023)
Reasons
IWG SLR forgot to update the reference in paragraph 6.5.8. when the 01 series of amendments to UN Regulation No. 148 was introduced. The proposal is intended to give the reference to the correct paragraph of the 01 series. To make the text easier to read, the structure of this part of the paragraph changed.
Sources (3)
“When the 01 series of amendments to UN Regulation No. 148 was introduced, IWG SLR unintentionally forgot to update in parallel the reference in paragraph 6.5.8. of UN Regulation No. 48.”
“This proposal is intended to provide the reference to the correct paragraph of the 01 series of amendments to UN Regulation No. 148.”
“In order to improve the readability of the text, the structure of the pertinent part of the paragraph in UN Regulation No. 48 has been modified.”
The proposer states that the old text was not clear. It could lead to the wrong interpretation that all lamps in paragraph 5.11. must be switched ON in the following cases. These cases are switching ON the rear position lamp reciprocally incorporated with the rearmost side marker lamp, or lamps other than the rear position lamps. The proposal intends to clarify a possibility when the daytime running lamps are switched ON. One example of this possibility is switching ON only the rear position lamp and the rearmost side marker lamp.
Sources (3)
“The current text is not clear and could lead to the wrong interpretation that all lamps in paragraph 5.11. shall be switched ON”
“in case we want to switch ON the rear position lamp reciprocally incorporated with the rearmost side marker lamp, or other lamps than the rear position lamps.”
“This proposal intends to clarify the possibility (for example), when the daytime running lamps are switched ON, of switching ON only the rear position lamp and the rearmost side marker lamp.”
Document trail
- 2023-08ProposalECE/TRANS/WP.29/GRE/2023/13IWG SLR proposal to correct a reference to UN Regulation No. 148
- 2023-08ProposalECE/TRANS/WP.29/GRE/2023/19GTB proposal on daytime running lamps with other lamps
- —Working party adoptsECE/TRANS/WP.29/GRE/89GRE session report, paras. 8 and 15
- 2023-12Sent to WP.29ECE/TRANS/WP.29/2024/20Text that GRE sent to WP.29 and AC.1
- 2024-03WP.29 adoptsECE/TRANS/WP.29/1177Adopted at the 192nd session (session report, para. 140)
- 2024-09-22In forceC.N.405.2024.TREATIES-XI.B.16.48UN depositary notification
Q3Who is affected
Vehicle manufacturer
- Check your lamp switching logic against the new wording of paragraph 6.19.7.4.
- Check which listed signal activates your direction-indicator tell-tale. The list now includes paragraph 4.6.1.4. of the 01 series of amendments to UN Regulation No. 148.
Component supplier
- No direct action for this role.
Technical service / Approval authority
- Check that the tell-tale of categories 1, 1a, 1b, 2a and 2b direction-indicator lamps uses a listed activation signal.
- Check the switching of rear position lamps with daytime running lamps against the new wording of paragraph 6.19.7.4.
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