I acquired a non running 1997 Outback wagon that I couldn't see going to the local landfill. I diagnosed a few problems, main one being bad fuel pump, and to make a long story short, I have it running, and have made other needed repairs like brakes all around etc. However, the ABS and SRS warning lights are on. I have checked all related fuses, and the weird part is, the 6 pin diagnostic plug is not giving me any codes at all. I have tried grounding pin 1 for SRS with one of the two factory black grounds in the wiring harness, and same with pin 6 for ABS..also tried my own grounds. No flashing on either light for codes, they just stay on steady.

 

I know I have the right back 6 pin connector, I've done it in other Outbacks. What am I missing?

 

Many thanx, great board here!

 

Steve

unlikely but, ABS is most sensitive to low voltage - check the charging system.

check the controllers and fuses, maybe someone disconnected/pulled them?

The lamp is turned on by the ABS circuit making a ground connection to the lamp. See if the light goes out when you disconnect the ABS control module. If it doesn't check the 'CHECK CONNECTOR' for a grounding problem. If the lamp does go out then reconnect the module and disconnect the hydraulic unit and see if that makes go out. Check for voltage on pin 17 (grn/wht wire) going to the ABS control module. If voltage is real low on that lead then isolate that wire from the module and see if the module pin still has low voltage on it. If it does then the module is activating the light somehow. It may, or may not, necessarily mean the module is bad.

Thanx all for responses. I have checked all fuses and they are good.

 

Cougar, I will try what you suggested tomorrow. Is the "check connector" you mention the same as the 6 pin diagnostic plug? And what voltage am I looking for on pin 17? 12V or a 5V ECM reference signal?

And no one mentioned anything about the SRS light being illuminated too, and that neither one tests at the 6 pin diagnostic connector. Are the two lights tied together in any circuit? Might I be looking for a ground problem on both? Thanx for the replies!

 

Regards

Steve