ECU not responding to mode selector - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jafero · 03-07-2007, 09:20 PM

This evening, I tried to go through diagnostic with ECU. I turned key to on position with engine not running. ECU never responded to my turning the mode selector clockwise all the way and holding it there indefinitely. Solid red light is on all the time and never blinks with mode selector turned fully clock wise.

What is ECU doing? Do any one know how to reset the ECU so that I could use it for diagnostics or could it be that the ECU is fried?

jafero · 03-08-2007, 12:47 AM

BTW, Can I reset ECU?

NismoSilvia270R · 03-09-2007, 11:44 AM

im having a similar problem. the led doesnt come on.

ecu is supposed to reset itself once the residual power is gone.
IOW, unplug power and let sit for at least 24h.

cotbu · 03-09-2007, 03:04 PM

Thats because it's clockwise hold 2-3 sec then counter clockwise................

NismoSilvia270R · 03-09-2007, 03:33 PM

^^^ he's right. haha simple. thats what i get for not reading the post all the way. doh

jafero · 03-10-2007, 03:53 AM

I have been doing that. Turn it clockwise, wait for 2 seconds and turns counter clockwise. No success.

03-07-2007, 09:20 PM	#1
jafero Leaky Injector Join Date: Jun 2006 Location: NJ Posts: 129 Trader Rating: (0) Feedback Score: 0 reviews	ECU not responding to mode selector This evening, I tried to go through diagnostic with ECU. I turned key to on position with engine not running. ECU never responded to my turning the mode selector clockwise all the way and holding it there indefinitely. Solid red light is on all the time and never blinks with mode selector turned fully clock wise. What is ECU doing? Do any one know how to reset the ECU so that I could use it for diagnostics or could it be that the ECU is fried?

03-09-2007, 03:04 PM	#4
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	Thats because it's clockwise hold 2-3 sec then counter clockwise................ __________________ LoverTechnologies "Half Broken Things!"

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03-08-2007, 12:47 AM	#2
jafero Leaky Injector Join Date: Jun 2006 Location: NJ Posts: 129 Trader Rating: (0) Feedback Score: 0 reviews	BTW, Can I reset ECU?

03-09-2007, 11:44 AM	#3
NismoSilvia270R Zilvia Junkie Join Date: Jan 2004 Location: Clarksville Age: 39 Posts: 510 Trader Rating: (1) Feedback Score: 1 reviews	im having a similar problem. the led doesnt come on. ecu is supposed to reset itself once the residual power is gone. IOW, unplug power and let sit for at least 24h.

03-09-2007, 03:33 PM	#5
NismoSilvia270R Zilvia Junkie Join Date: Jan 2004 Location: Clarksville Age: 39 Posts: 510 Trader Rating: (1) Feedback Score: 1 reviews	^^^ he's right. haha simple. thats what i get for not reading the post all the way. doh

03-10-2007, 03:53 AM	#6
jafero Leaky Injector Join Date: Jun 2006 Location: NJ Posts: 129 Trader Rating: (0) Feedback Score: 0 reviews	I have been doing that. Turn it clockwise, wait for 2 seconds and turns counter clockwise. No success.