PRE-EOBD DI­AG­NOS­TICS

Car Mechanics (UK) - - Diagnostics Masterclass -

In the ab­sence of the stan­dard­ised 16-pin EOBD socket, you will have to re­search your par­tic­u­lar ve­hi­cle’s re­quire­ments. Some­times, man­u­fac­turer-spe­cific tools that you need are now ob­so­lete. How­ever, in some cases, after­mar­ket soft­ware may have been de­vel­oped, through which you can ac­cess live data, such as the pack­ages for Rover Group MEMS sys­tems (see CM, May 2016). Oth­er­wise, en­thu­si­asts of a spe­cific model of car may be able to help.

Some pre-2001 ve­hi­cles had their own non-stan­dard­ised ‘blink codes’, which re­lied on a flash­ing LED that had to be trans­lated by a tech­ni­cian. Even so, some of them were fairly so­phis­ti­cated and you may be able to ac­ti­vate cer­tain com­po­nents to check that they op­er­ate. Should you need live data on such PRE-EOBD ve­hi­cles, a mul­ti­me­ter and/or os­cil­lo­scope are the pre­ferred mea­sur­ing tools.

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