Author Topic: OD light flashes (Read 2433 times)

Coverider06 · « **on:** Aug 20, 2008, 12:41:11 PM »

For the last few weeks my speedometer hasn't been working but when the tran. drops to first gear the speedometer would go crazy. We ran diagnostic test last week and two fault codes said it was the speed sensor, we went and got one and it did nothing, checked the wires from the sensor to the ECU and they were fine. I just don't know what it maybe now? Anybody know?

79coyotefrg · « **Reply #1 on:** Aug 20, 2008, 05:03:39 PM »

are you from Arkansas or just a McFadden fan??

where did you get the new speed sensor??

lucky7 · « **Reply #2 on:** Aug 20, 2008, 06:33:37 PM »

Loose connection

jimbo74 · « **Reply #3 on:** Aug 20, 2008, 06:36:37 PM »

you checked the wires for continuity to the ecm? is the sensor sending a signal to the ecm? or did you just check it for cuts?

Rocksurfer · « **Reply #4 on:** Aug 21, 2008, 08:30:31 AM »

bad ground.

Coverider06 · « **Reply #5 on:** Aug 21, 2008, 01:39:31 PM »

we checked the wires for continuity from the sensor to the ECU. I got the sensor from the dealership. And yes I am from AR

lucky7 · « **Reply #6 on:** Aug 21, 2008, 04:00:23 PM »

I not sure but mine went into limp mode and only stayed in second can you manualy shift it does that change anything

Coverider06 · « **Reply #7 on:** Aug 21, 2008, 08:04:42 PM »

I can pull over, put it in drive, and drive for a little bit more. but before it shifts down the OD Off light flashes the whole time

79coyotefrg · « **Reply #8 on:** Aug 21, 2008, 08:13:52 PM »

Quote from: Coverider06 on Aug 21, 2008, 08:04:42 PM

I can pull over, put it in drive, and drive for a little bit more. but before it shifts down the OD Off light flashes the whole time

what year truck?? the od light makes me think the cpu for the tranny got wet

DUDE, we're having an event at the Superlift park september 19-21 http://www.ttora.com/forum/showthread.php?goto=newpost&t=109131

lucky7 · « **Reply #9 on:** Aug 21, 2008, 09:09:26 PM »

My connector to my solenoids in the tranny was bad alittle dialectric grease helped that ,but eventualy but spliced the wires

Coverider06 · « **Reply #10 on:** Aug 22, 2008, 06:03:12 AM »

My truck is a 92 pickup and I wish I could go to the event but I got to work that weekend. But 79coyotefrg have you ever heard of baroid up around Malvern? Where is the cpu for the tranny?

jimbo74 · « **Reply #11 on:** Aug 22, 2008, 06:09:16 AM »

flashing overdrive lights usually indicate an internal problem with the tranny.... for that, there will be a diagnostic code... i dont know the procedure on it, for toyotas, but when i had a flashing overdrive light in my ford, i hooked it up to a scanner, and one of my shift solenoids was bad... i replaced it by dropping the pan and this special cip thing, and when i reset the light, it never returned again....

79coyotefrg · « **Reply #12 on:** Aug 22, 2008, 09:10:08 AM »

yes ive heard of the mines, but ive never made it over there

can you change the name of this thread to "OD light flashes"

all you have to do is modify your first post

hey heres the info on the event next month
http://board.marlincrawler.com/index.php?topic=41532.0

Coverider06 · « **Reply #13 on:** Aug 22, 2008, 10:00:06 AM »

That is where im from. I would go if it was the week after that

lucky7 · « **Reply #14 on:** Aug 22, 2008, 03:40:23 PM »

You need too take it out and see if it will shift maually i'm sure it's a bad connector but what # codes are you getting.I just went through this last week.

79coyotefrg · « **Reply #15 on:** Aug 22, 2008, 04:14:26 PM »

Quote from: Coverider06 on Aug 22, 2008, 10:00:06 AM

That is where im from. I would go if it was the week after that

i know your from Magnet Cove silly,this is a toyota truck owner club meeting/bbq/trail ride

so get with it

btw if it drives ok, take it to Landers Toyota anask for Kenny Dhane, tell Kenny Glen with Ar-ttora sent you

Coverider06 · « **Reply #16 on:** Aug 22, 2008, 05:14:03 PM »

The codes I got were 42 for the OD off light and the check engine.

jimbo74 · « **Reply #17 on:** Aug 22, 2008, 05:17:43 PM »

Quote from: Coverider06 on Aug 22, 2008, 05:14:03 PM

The codes I got were 42 for the OD off light and the check engine.

the light flashing means it triggers a code..... the code is then diagnosed as being some problem.....on our durango, i had a code of P0036 ... this code correlates to the computer seeing that the heated oxygen sensor, located on bank 1, sensor 2 -- was showing that the heater circuit wasn't functioning.....

the code isn't that it flashes a light, but directs an issue or part that isn't right

Coverider06 · « **Reply #18 on:** Aug 22, 2008, 05:33:59 PM »

That is a fault code i got by putting a jumper wire in the diagnostic port. I got that off the internet as a self diagnostic. It would flash 4 times then about a 2 sec. pause and then flashed again 2 more times and then it would start over again.

jimbo74 · « **Reply #19 on:** Aug 22, 2008, 05:36:45 PM »

so would that be a code 422? there is literature avilable about what a 442 means... it isnt the fact the light is on, but it will say what a 422 means... like a shift solenoid malfunction or what.... it will give you a baseline where to look... or the ecm is getting no information form a sensor --- which would mean sensor is bad or there is a wire problem.... etc

Coverider06 · « **Reply #20 on:** Aug 22, 2008, 05:44:39 PM »

there are only 2 digit numbers on the site. The code 42s probable cause is vehicle speed sensor or check ECU. Im starting to think it may be the ecu

jimbo74 · « **Reply #21 on:** Aug 22, 2008, 05:58:32 PM »

ok.... do you know that the ecm isnt receiving a signal from the VSS? how do you know the VSS isnt the culprit? have you checked the wires for contiuity? its very easy for a part to work, but the wires somewhere were pinched and its signal never makes it to the ecm

Coverider06 · « **Reply #22 on:** Aug 22, 2008, 06:11:49 PM »

it may be the vss but where is it at.

79coyotefrg · « **Reply #23 on:** Aug 22, 2008, 06:51:13 PM »

Quote from: Coverider06 on Aug 22, 2008, 06:11:49 PM

it may be the vss but where is it at.

the vss is on the tail of the tcase, its the last thing you will see before the flange that the drive shaft bolts to

lucky7 · « **Reply #24 on:** Aug 22, 2008, 06:55:31 PM »

If you need an ecu i got one

Coverider06 · « **Reply #25 on:** Aug 23, 2008, 04:56:46 PM »

what does vss stand for and we will check that 2maro i didnt think of that. thanks

KDXSR5 · « **Reply #26 on:** Aug 23, 2008, 05:01:29 PM »

vehicle speed sensor would be my guess

lucky7 · « **Reply #27 on:** Aug 23, 2008, 05:34:45 PM »

It's at the end of the trans before t-case but it's probably a bad connection

Coverider06 · « **Reply #28 on:** Aug 23, 2008, 06:28:52 PM »

is it gear driven

79coyotefrg · « **Reply #29 on:** Aug 23, 2008, 07:20:53 PM »

Quote from: lucky7 on Aug 23, 2008, 05:34:45 PM

It's at the end of the trans before t-case but it's probably a bad connection

at the end of the trans but before the tcase

um NO

Quote from: Coverider06 on Aug 23, 2008, 06:28:52 PM

is it gear driven

yes its gear driven, then sends the signal via wires to the cpu

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