WPCS 2 ZB0Z%Xx6X@KX@ 3' X` hp x (#%'0*,.8135@8:g V1iBeBx)gVeBBeVg)xBeBiK1V g) 1xKBiix1 )g2fc(Hk" *f(">cc>"(f* "kH(c>f k((k f+f+K&U&-SJgiwz(fm*R368<<<4_+:|vRd(ZV[f%.d UUUUUUUUUUUUU ,,,888EEEQQQaaaqqq C%.@HHH-?**((''&&%%?$?$p$?##s#p  ?""?"? "!??!? ! !?`?? ǀ? ~?? ?? ?? ?? 0???? ??~ ??  ??   ?  <?@? 1?  | ? ? G  C |1@ ? | ??  ~ ~  $  $?>?~? $8? $!?8%?<?>x<`|c~???<>x>?|<? 8??xCp>?ǀ|<?? |>ǀ ????x?!~?>|?!~>??  ~~?>?~<?p??~ xÀ|??p?πǀ|>ppx?| > ~   ? ?< ǀ?? ?|À? À À>< 8  x? x x? 8    | ? x ?&<C? @?  @  G?  H π   $p 8 ?0 p>?< 0?8 p>8  p?8 ~@? ? ?<  < π0 8B <? ?G? 3?ǀ? c G? p ?`<<p8s~pp>>8b>| A <#  8|N pp?|n ``>n  ?o ?# p ? p   p?? `À p?   ? 8y 8ǀ  À @p0?À P ?00ǀ @~ 0p x 0 p~ >x b|8À? x1A @'  0 a  p ~ ?À ! ! ?Dሄ ?B3  8! $8 !0qc`p@@F1?$Lc!Ȍ" ?58x?#G@D@?5F18xa@ ?5g0p c@0? 1#|`>0 !D  ~@"p s r8xc&  ?`` b0?"?1# . 3B!0p+@?c >0pp H??Cpxa@p?. `H!?01 ?p$? `@<C pxp$0~ 1<> !x58< @<rxp0!8%8<@`@@ `@5q8<@?1@Dsx< `0 `wx?~ 6 8p 0 `y px 2 Ä80`1?y?8 `  Ä0b"0?xx??Ã8Cp`a?x x?0 b>8 <1!><`x8<C0b!by@? >8? ?|<8@ x0||8` >1?|x<>? |1x?x> 1x?x? F1x?p <a0?p? p!`?p O? 0??a ?dž??!? @ ?x!<??xC`x8? ?8`G~p8?~px|ɀ ||<ˀ x8? p??  ??~ r?~#<1~r?~1|z?|<p!0x88?`88?$?Ã@88?$?@?8< ? p?x@ 09 OÃ$p~ 0Ao?ǃ$~?0?$|&|0><& ?x0>||??& |x089?x??>?9? ?=? @?3ǟ>8$@ps8pg?8~? >8?? `???<G @>|? |x??|? p?q? <p?  `?<8 0?8 p?p # p? ww?ǀO?À?? q?? ?8<<188p?   `9   8 |?<?   <@?? ` |? Ax| << ?y=8|x 81  <` ?AȀ x?<` ?00 ?0`?x1x< Ï0 x< ?@ ?1<8@ ?q8` y8Ȁ x? ?3 "?π O|O>?܃?|x@`p 20@0s ? @ ? Ï?G  ?xp< > `?ψ?  ? ! ??  ?? ?0?? $|?8a 0< #? ?x "????8 ?? ?# ?8?`  '8? @ ~3?@ ? ??  ?? ? ??À ? ?? ? @?? ?> >????? ??x??3 ???  ?? ? |????> ? ? 0?? ?? ? G  ?  ? ?? ??  !?! ?!!`?"0"?""##?$?$ ?$π%%&&''())+H(  << %MailOut #MSC 97244` <DL!T$&)\+- 0d247l9;>t@B$E4 1  1 y-__CEPALOGO.wpg-y 1  1 RxxxxX` hp x (#%'0*,.8135@8:t@B$E4` `   << %November 17, 1997 TO: ALL PASSENGER CAR MANUFACTURERS ` `  ALL LIGHTDUTY/MEDIUMDUTY VEHICLE MANUFACTURERS ` `  ALL OTHER INTERESTED PARTIES ` ` On December 12, 1996, the Air Resources Board (ARB or Board) conducted a public hearing to consider amendments to section 1968.1 of Title 13, California Code of Regulations (CCR), entitled Malfunction and Diagnostic System Requirements1994 and Subsequent ModelYear Passenger Cars, LightDuty Trucks, and MediumDuty Vehicles and Engines (OBD II). At the hearing, the Board approved for adoption the proposed modifications to the regulation. The regulation as modified is effective as of September 25, 1997. ` ` Enclosed are copies of the approval by the Office of Administrative Law (OAL) and the text of the OBD II regulation. The text of the OBD II regulation is also available in electronic format on the ARBs world wide web site at http://www.arb.ca.gov (search for keyword obd). ` ` Any questions regarding the regulation may be directed to Allen Lyons, Manager, Advanced Engineering Section, at (626) 5756833. ` `   << %Sincerely, ` `   << %Robert H. Cross, Chief ` `   << %Mobile Source Control Division Enclosures  4   @@  1968.1 Malfunction and Diagnostic System Requirements--1994 and Subsequent Model-Year Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles and Engines (a) GENERAL REQUIREMENTS ,Xr4` hp x (#%'0*,.8135@8:@rr (1)A written description of the functional operation of the diagnostic system to be included in Section 8 of manufacturers' certification applications. ٌrr (2)A table providing the following information for each monitored component or system (either computer-sensed or -controlled) of the emission control system:  Xr <hp x (#%'0*,8135@8:@ (I)   criteria used for determining out of range values and input component rationality checks Xr4 <hp x (#%'0*,8135@8: