Question about 2002 Nissan Frontier Crew Cab

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Code 1490 Service engine light is on

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P1490 indicates the ECU received an improper voltage signal from the vacuum cut valve bypass valve, which is located under and to the rear of the vehicle

Posted on Nov 27, 2013

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Posted on Jan 02, 2017

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How to reset Service Engine Soon light after replacing gas cap? Took to AutoZone when the Service Engine Soon light came on Error code P0440.


Disconnect the negative battery cable for 30 minutes. Reconnect after and the code will clear. However if the problem persists, the code will come back with in 20 miles or 30 minutes.

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Service engine soon light


Disconnecting the battery will not clear the code . Have erase with a scan tool .

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How do you replace cam sensor where is it


you can get help from service and repair manual from the given link and fix the problem by your own and save your time and money http://toolsnyou.com/

Dec 12, 2017 | Cars & Trucks

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Engine Service Soon Light On code P0154


Error Code: P0154
Description:
Heated Oxygen Sensor (HO2S) 1 , Bank 2 - No Activity Detected
Problem areas:
- Wiring.
- Open circuit in signal wire, between Heated Oxygen sensor 1, Bank 2 and ECM. (Must check and confirm)
- Heated oxygen sensor (HO2S).
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Nov 20, 2013 | 2003 Mitsubishi Montero Sport

1 Answer

Jeep Grand Cherokee P1490


okay you have a few problems here, lets start with the rear taillight problem, these jeeps are none for the sockets going bad, this would be simple to test with atest light,

next po1489 and 1490 have nothing to do with plugs or fuel filter, these codes are for the high and low speed fan control. the cooling fan on radiator. so i would first start with the testing of the cooling fan, if the engine is running hot due to fans not working then this would cause loss of power and may damage engine, this may be due to bad relays or fan, the code po 0122 is for the tps, this may be a bad tps or a wiring problem, there are to ways to do this one is to test and the other is to replace, if you have a tester and a meter you can test voltage ground and ref signal to tps or you can replace it and if the problem is still there (the code) then you will have to test.
the tps code may be the problem for lack of power.
as far as the cruise control, the cruise will not operate with a check engine light on, this is the future, computer will shut it down. the light problems, coming on at times will need some testing and is hard for me to help you with out more info,

good day

Mar 31, 2013 | 2004 Jeep Grand Cherokee

1 Answer

Service engine, abs, trac off


The service engine light does not affect the abs.You most likely have a broken wire in your abs system which is affected by suspension movement.A code reader which does abs codes will tell you which wheel circuit is turning on the abs light.When there is no abs available the track will turn off.

Jul 03, 2017 | 2000 Pontiac Grand Am GT

1 Answer

Trouble code 1489 and 1490


1489
image http://screensnapr.com/e/yUGOpK.png
1490
image http://screensnapr.com/e/O8eUGt.png
check fuses.. may need a fan from $150- $250 pretty easy to change really

Jan 04, 2012 | Cars & Trucks

1 Answer

Service Engine Light not illuminated


The check engine light is turned on by the ECM. (computer) Make sure the bulb is good. For a 1989 you don't need a code reader, just an ALDL grounding tool to read out codes.

May 17, 2009 | 1989 Chevrolet S-10 Blazer

2 Answers

How do i re-set the service warning light on my 2003 Alero?


This depends on which light you are reffering to. There is a sercive engine soon light, and a service vehicle soon light, as well as other warnig lights.

Mar 17, 2009 | 2003 Oldsmobile Alero

2 Answers

Service engine soon light on. failed aircare.showing code po341 .


The service engine light DOES NOT mean change your oil. The change oil or maintence required light means change oil. The service engine light is the same as a check engine light and means that there is something (not always really bad) is going on with your motor and need someone that has a code reader to let you know what the code is. Yes that code is a camshaft position sensor code. It is located on the passenger side of the engine in the "valley" between the two cyclinder heads. Its not too hard as long as you have some tools and some skills. Its easiest to remove the serpentine belt and remove the bolts for the power steering pump. That way you can move the pump a little to gain better access to remove the cam sensor. Just replaced one yesterday on a 99 century. Hope that helps!

Dec 16, 2008 | 1999 Buick Century

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