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Old 09-24-2016, 06:33 PM   #1 (permalink)
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Default Engine light on

2003 jimny M13A motor,Australia,
I have the engine light on. The car seems to be running ok with the light on but i don't really trust it and would like to get rid of the light .I bought a ELM 327 OBD2 interface, but it wont connect to the ECU to find the fault code,it finds the interface ok .
Is it because its a cheap china knock off, and if so could somebody point me to one that will work. preferably not to expensive.Thanks
John
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Old 09-24-2016, 08:46 PM   #2 (permalink)
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You did not fill in the CP so we will guess you are in Australia..

Aus did not go to OBDII officially till 2006, prior to that is was hit and miss, also Aus got 2 different protocols depending on country of Mfg...

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Old 09-25-2016, 04:08 AM   #3 (permalink)
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Right that makes sense why it wont connect. Is the other one Eobd V1. if it is i will have to get one on ebay.
I ended up using the jumper wire method and came up with fault code 14.
now i have found two answers for this fault , One is a water temp sensor and the second is a o2 sensor. I would reckon the o2 would be the one as they seem to have a history of faults.
and yes ausi ausi ausi oy oy oy.
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Old 09-25-2016, 12:37 PM   #4 (permalink)
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John, fall back on checking the ECT,

Suzuki – OBD/OBD2 Trouble Codes

Regardless, test before replacing parts... You have 2 coolant temp sensors, one for ECU the other for dash display.. If you have A/C you may have an additional..

We dont know as you have yet to fill in the CP info..

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Old 09-25-2016, 03:57 PM   #5 (permalink)
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These models use a protocol based on KWP2000, however they don't use the same modes or addressing scheme as OBD2/EOBD. because OBD2 is very limited in its data all Suzuki models of this era have this 'OBD1' interface but models made for OBD2/EOBD markets also have the OBD2 modes and addressing scheme. Only the genuine Suzuki tools will talk to these ECUs.
The fault code definitions did change, as far as I can ascertain this took place with the introduction of KWP2000. The best reference is the Factory Service Manual that can be downloaded here:

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Old 09-26-2016, 03:59 PM   #6 (permalink)
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Thank;s Rhinoman , so i have a model that i cant look at the ECU to find any fault codes.well i have to get used to using the bridging wire, Which is easy to do anyway.
The service manual says that code 14 is ECT fault, seems to be the same as the earlier models. there doesn’t seem to be a lot around about the 2003 jimny mostly up to 2000 then above 2005.
now to find out where the ECT is situated.
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Old 09-26-2016, 04:39 PM   #7 (permalink)
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I've put this together..

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Old 09-26-2016, 05:11 PM   #8 (permalink)
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The FSM for the 81A10 which should be your model states that code 14 is the O2 sensor.
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Old 09-26-2016, 05:45 PM   #9 (permalink)
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Quote:
Originally Posted by Rhinoman View Post
The FSM for the 81A10 which should be your model states that code 14 is the O2 sensor.
I concur.
I've just had a look through the manuals I have and from what I can tell the earlier Jimny with the G13bb code 14 is the ECT sensor and the later Jimny with the M13A code 14 is the O2 sensor.
Hope this is correct, Mr Rhinoman will know for sure

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Old 09-27-2016, 02:54 AM   #10 (permalink)
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Is there a list of the codes for this model somewhere as i can find them for up to 2000 models. but then it is very vague. I think i have the wrong service manual, or i am just not looking in the right place
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