Subject	Speedo feeds PS ECU
Posted by	ThisIsSparTTa on April 01, 2014 at 11:55 AM
	This message has been viewed 186 times.
In Reply To	no power steering or speedo posted by TJSB on March 31, 2014 at 08:01 PM
Message	The speed sensor feeds the speedometer with an analog signal, which the speedo converts into a digital TTL signal to go to the ECU or HICAS controller, depending on your setup. If your speedometer isn't working, then the ECU won't get the signal either and put you into the fail-safe mode that disables power steering. Without more information right now, could be anything from the speed sensor, to the wiring and harnesses in between, to a bad cluster. Time to pull out the FSM and start researching.
Follow Ups	no power steering or speedo - TJSB 20:01:57 03/31/14 Possibly the speed sesor on the transmission... - LitlElvis 22:04:29 03/31/14 Give more info when did this happen. Was it working before? - YlwPrlZTT 22:29:53 03/31/14 my speedometer just came back from repair for the same thing (n/m) - NytWolf 11:51:54 04/01/14 Speedo feeds PS ECU - ThisIsSparTTa 11:55:37 04/01/14 Re: Speedo feeds PS ECU - TJSB 21:29:27 04/01/14 Re: Re: Speedo feeds PS ECU - ThisIsSparTTa 09:32:03 04/03/14
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