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Diagnostic Trouble Codes!

Posted: Mon Apr 30, 2007 4:16 pm
by 3S-GE
I need help or info on DTC`s,

My engine managment light comes on after a few minutes of driving. i put our toyota tester on it to check codes,
I got two codes: P0500, Vehicle Speed Sensor Malfunction
P1656, OCV Circuit (Bank 1)

Im not too worried yet about the speed sensor, as all clocks are working.
The OCV sensor relates to VVT sensors, but i cant dig up anything in the manuals on this as it has Dual VVT-I. i have checked restance in both sensors and are the same, about 8.8ohms, i think. has anyone seeen these problems or know of anywhere i can get repair manuals for the altezza? i have tried downloading the file on altezza repair manuals that is posted on the forum, but no joy...

Any help at all will be greatly appreciated,
Thanks in advance,

Posted: Fri May 11, 2007 11:05 am
by seamors200
when i got my car 1st i had same prop i think when i got in and drove the car in the morn my engine light would come on but also mr trc light would show up and i could not put any power on the car till the oil temp would come up to about 70c so sent it back to jap cars and they said the airflow sensor was changed and they sent it to someone to get some work done with the injection system not sure what exactly but it cost them a total of 760e to get fixed, maybe you are having similar trouble

Posted: Fri May 11, 2007 12:20 pm
by 3S-GE
hope its not: 760euro :shock: i think the bulbs will have to come out!!

Posted: Fri May 11, 2007 12:43 pm
by Robin H
Mr Singh on the LOC has a worhshop manual for the head cost him a fair bit to get it translated

I've asked Chris S on the LOC if toyota have a worhshop manaul for the 3SGE and the answer was no

you could try ringing Thor racing they maybe able to help out

Posted: Fri May 11, 2007 12:50 pm
by Dan
download the manual from here and see does it cover anything useful