 Code 42, what does this mean? |
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 Sep 17, 2007 - 11:07 PM
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 Enthusiast  Joined Apr 15, '07 From Fort Worth, TX Currently Offline Reputation: 12 (100%)  |
Today for kicks, I checked my diagnostic codes, and the only one I pulled was Code 42. I did some research and it indicates something about the speed sensor signal. What could this mean?
-Matt |
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Sep 20, 2007 - 12:46 PM
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Enthusiast Joined Apr 15, '07 From Fort Worth, TX Currently Offline Reputation: 12 (100%) |
Anyone?
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Sep 20, 2007 - 1:22 PM
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 Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
does your speedo work?
it could be the wire to the ecu corroded or shorted -------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
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Sep 20, 2007 - 1:30 PM
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Enthusiast Joined Apr 15, '07 From Fort Worth, TX Currently Offline Reputation: 12 (100%) |
QUOTE(stephen_lee @ Sep 20, 2007 - 1:22 PM) [snapback]597616[/snapback] does your speedo work? it could be the wire to the ecu corroded or shorted Yep, speedo works just fine, doesn't stutter or anything. -Matt |
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Sep 20, 2007 - 2:36 PM
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Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
so the signal IS there, but isn't getting to the ECU, i think. so check your ecu plugs.. i belive its the plug closest to the engine bay.. just unplug htem all, then plug them back in. if that doesn't help, start looking for something wrong with the speed sensor wire..
-------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
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Sep 21, 2007 - 7:56 AM
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Enthusiast Joined Apr 15, '07 From Fort Worth, TX Currently Offline Reputation: 12 (100%) |
How do I access the ECU?
-Matt |
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Sep 21, 2007 - 3:36 PM
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 Enthusiast Joined Feb 7, '07 From Portland, Oregon Currently Offline Reputation: 67 (96%) |
To the best of my knowledge, the speed sensor is actually what is also known as the wheel speed sensor, which controls the ABS. Do your brakes behave erratically, or is your ABS light on? If your brakes pulsate at lower speeds or grind and pulsate simultaneously, combined with that code, it could be your ABS failing.
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