ABS warning light - Some help needed Please.

Dear all,

I've been visiting this forum for a couple of months as it provides a good resource. Well done to all those that take care of it and post on it. It provides useful information.

I've been the owner of a 1998 Suzuki Jimny for the past year and I try to do all servicing work and repairs on it myself as I enjoy getting my hands dirty

I've come across a problem which till now haven't managed to solve. My ABS warning light remains on continuously and thus I have no ABS functioning. I went through some literature on its workshop manual and managed to read error codes from the 4 pin adapter located behind the glove box but since I have no errors in the engine management system, the CEL blinked 1 2 showing I have no faults in that area. I got in touch with a friend of mine that has a couple of diagnostic readers (since its his profession) but when he plugged his equipment in the Dignositc socket under the steering (driver side is on the right) he couldn't get through to ABS as if the the car never had an ABS system. This confirmed my findings earlier on, on AUTODATA software since my car was not listed as having ABS, as the ABS option on the software was greyed off (not available).

I would like some help as to whether there is a seperate diagnostic plug to get into the ABS system and whether it is possible to read codes off the ABS warning light through the blinking procedure (I believe it can be done) and bridging of wire connectors as is with the CEL. Is the diagnostic coupler mentioned in 5E-11 the same one that you use to read of CEL codes? That is, is it the same one located behind the glove box (on the left hand side of the car) as that I'm not sure about it?

Following the schematic diagram (from 5E-14), I've determined that the wires to short on the diagnostic plug are ground (black) and the Diagnosis Switch Terminal (A12 -Pink/Black). I hope I'm correct. If I'm right the only missing part of the puzzle is where is the ABS diagnostic connected located and whether is the same connector I used to read out Check Engine Light codes. I believe there was no pink/black wire on the diagnostic connector behind the glove box, only a pink/white wire.

I would be grateful if anyone ever encountered such a problem and how they fixed it. Does this fault result only from wheel sensors? I intend to service each wheel and brakes soon too but would the ABS malfunction is top priority to fix. Thanks for your help.

My car is a 1998 Jimny first sold in Japan, 13BB engine SOHC 16V, 5speed manual and with 4WD transfer box.

Regards,
Cliff

On the swifts, the abs ring on the driveshafts gets rusty underneath, cracks and pieces fall off, might be the same for jimny.
I'd start by checking the abs rings.
If you locate the abs controller, you will be able to see where the pink wire goes, (sometimes the connector is under the bonnet), you could even splice into it at the controller end, as it only needs shorting to earth.

It does physically have abs? There is an abs pump etc?

OK thanks. Yes I could locate the ABS ECU and follow the pink/black wire. Yes it has an ABS pump under the bonnet and even sensors at each wheel. THanks for the info.

Not sure ABS came standard that far back?
Might be wrong... Older Jimny owners may know

Try contacting Rhinoman, he is a user here, and has his own web pages. He knows a lot about the engine diagnostics, he may be able to help.

I think the abs controller doesn't communicate with the main ecu, so it won't be read by an engine type diagnostic tool.

You say you looked in the workshop manual, it shows the "monitor coupler" under the drivers dash, on pages 5E-4 and 5E-11 it appears to be dangling from a harness next to the controller, is it not there? Or do you have a different manual to the rest of us?

Yes I found the monitor couple under the dash and used it to read codes off the Check Engine Light. I need to find the diagnosis plug (unless its the same one) that returns the error codes off the ABS ECU and thus blinks to report what error code it has. Early EU Jimnys might not have ABS but mine has since I suspect they were first introduced for the japanese market. My Jimny is a JDM vehicle. Thanks for the replies. I already spoke to Rhinoman but he wasn't sure about the ABS diagnostic plug. I will try and find the ABS ECU and short a pink/black diagnostic wire. Any idea where the ABS ECU is located in the Jimny please? Thanks