mayor2013:
Does your abs module establish any communication with the scan tool i.e can you access information from your abs module

HenriXI:
Hi Guys,

Please i need help with my 2010 corolla S P0500 (Vehicle Speed sensor) issue.

Since i got the vehicle August last year, everything has been functioning well except for the ABS, VSC OFF (blinking) & skid control lights on the dashboard. My mechanic diagnosed the vehicle and told me the ABS Pump Assembly was bad and needed replacement... (the code was C1246 - Malfunction in master cylinder pressure sensor). All these didn't affect the vehicle performance except that it would skid when i push hard on the brakes.

Recently I've replaced the ABS Pump Assembly but i now have a P0500 code and my car only shifts between gear 1 and 3. I sometimes have very low RPM when I'm idling too.

Please i need some advice on what to do cuz I've tried the following...
1) I've put back my previous ABS Pump Assembly and it's still the same (now with the abs lights on and check light on too - P0500 & C1246 codes). N/B the new ABS Pump Assembly has the same numbers on them (44540-02110 89541-12450. 133800-4290 QK.)

2) I've replaced the gearbox speed sensor (shown in the picture attached). And it still didn't solve the problem.

3). I've had an auto electrician trace the wires from the gearbox sensor all the way to where it enters the brainbox and he has confirmed there's continuity.

4) All the wheel speed sensors are okay and they are reading correctly (As shown on Live data on a diagnosis machine - Picture attached).

5) I've replaced my vehicle ECU (as directed by my mechanic - he suggested they might have interchanged polarities when they tried jumpstarting the vehicle after i parked it for a long time) and it still didn't solve the problem.

Please i need your inputs cuz I've spent money trying lots of ideas and the latest of them all is that my mechanic asked me to get a new gearbox.

My RPM get's high up to 3600 @ 100km/hr and even up to 4500 @ 120km/hr... Very abnormal

Please if you've experienced this kinda problem, share how you got out of it.

N/B: My odometer wasn't engineered, there's actually 103k now - display ink issue i guess.

Thanks in advance.

HenriXI:
Hi Guys,

Please i need help with my 2010 corolla S P0500 (Vehicle Speed sensor) issue.

Since i got the vehicle August last year, everything has been functioning well except for the ABS, VSC OFF (blinking) & skid control lights on the dashboard. My mechanic diagnosed the vehicle and told me the ABS Pump Assembly was bad and needed replacement... (the code was C1246 - Malfunction in master cylinder pressure sensor). All these didn't affect the vehicle performance except that it would skid when i push hard on the brakes.

[b]Recently I've replaced the ABS Pump Assembly but i now have a P0[/b]500 code [/b]and my car only shifts between gear 1 and 3. I sometimes have very low RPM when I'm idling too.

Please i need some advice on what to do cuz I've tried the following...
1) I've put back my previous ABS Pump Assembly and it's still the same (now with the abs lights on and check light on too - P0500 & C1246 codes). N/B the new ABS Pump Assembly has the same numbers on them (44540-02110 89541-12450. 133800-4290 QK.)

2) I've replaced the gearbox speed sensor (shown in the picture attached). And it still didn't solve the problem.

3). I've had an auto electrician trace the wires from the gearbox sensor all the way to where it enters the brainbox and he has confirmed there's continuity.

4) All the wheel speed sensors are okay and they are reading correctly (As shown on Live data on a diagnosis machine - Picture attached).

5) I've replaced my vehicle ECU (as directed by my mechanic - he suggested they might have interchanged polarities when they tried jumpstarting the vehicle after i parked it for a long time) and it still didn't solve the problem.

Please i need your inputs cuz I've spent money trying lots of ideas and the latest of them all is that my mechanic asked me to get a new gearbox.

My RPM get's high up to 3600 @ 100km/hr and even up to 4500 @ 120km/hr... Very abnormal

Please if you've experienced this kinda problem, share how you got out of it.

N/B: My odometer wasn't engineered, there's actually 103k now - display ink issue i guess.

Thanks in advance.

AutoElectNG:


Lovely question...no beating around the bush...inundated with technical data to work on remotely.

What's your background if you don't mind?

mayor2013:


P0500 came up after the replacement of the abs module

kingreign:
what country of manufacture is your corolla?
Note:some toyota VSS mated to their transmission and rats loves these wires.

side note: Forget those big companies names. where's your location?

HenriXI:


Canada (What we popularly call American spec).

I learnt that some 08/09 corolla has VSS with something like a sprocket on the tip where it meets with a rotating part inside the transmission when fitted in position.

My transmission does have that space but it came sealed. The only VSS here is the one i showed on the picture above.

My location is Akwa Ibom state.

mayor2013:


Get a wiring diagram for your mecho to work with

HenriXI:


Canada (What we popularly call American spec).

I learnt that some 08/09 corolla has VSS with something like a sprocket on the tip where it meets with a rotating part inside the transmission when fitted in position.

My transmission does have that space but it came sealed. The only VSS here is the one i showed on the picture above.

My location is Akwa Ibom state.

mayor2013:


Get a wiring diagram for your mecho to work with

mayor2013:
I doubt if this wiring diagram is meant for your car. I see no circuit down to the "combination Meter" and this is still one area you haven't checked.

HenriXI:


Please point me in the right direction...

A link to the wiring diagram will help...

Thanks

HenriXI:


If i could get live data from the ABS wheel speed sensors, i believe YES! There's communication with the ABS module.

Check it out on the Foxwell scan tool picture attached.

What do you think?

HenriXI:


I've been with Coscharis motors for a while so i have a fair knowledge of vehicles (Studied Mech. Engr in school tho!). The Foxwell Scan tool is mine and i also own a wireless UCANDAS diagnostic & Programming tool.

I can fetch you the data you need and if we have to, i can work with you on the phone to try out different things.

My mechanic is also a friend who is open and ready to learn. I'm sure with both of us onboard, we can work it out.

AutoElectNG:


Possibilities include:

Brake Light Switch?
Brake Light Circuit?
Wheel Speed Sensors?
Brake/Traction Actuators?
Brake Actuator Assembly?
Brake Light Switch Assembly?

Possibilities...you need scan data, maybe freeze frame data, detailed manufacturer technical troubleshooting guidelines, patience and some familiarity with electrical electronics and you should be good

As much as I would love to help...this is in-depth troubleshooting and goes beyond what can be done pro bono...I suggest you take up the offer by Kingreig.n who will most likely not do it for free, but then he is close to you, if that gives you some comfort that you are dealing with someone that is within reach

AutoElectNG:


Possibilities include:

Brake Light Switch?
Brake Light Circuit?
Wheel Speed Sensors?
Brake/Traction Actuators?
Brake Actuator Assembly?
Brake Light Switch Assembly?

Possibilities...you need scan data, maybe freeze frame data, detailed manufacturer technical troubleshooting guidelines, patience and some familiarity with electrical electronics and you should be good

As much as I would love to help...this is in-depth troubleshooting and goes beyond what can be done pro bono...I suggest you take up the offer by Kingreig.n who will most likely not do it for free, but then he is close to you, if that gives you some comfort that you are dealing with someone that is within reach

kingreign:

@bolded, i'd suggest you stay in your lane and not conclude hastily. you don't know what i have in mind and up my sleeves. once again, stop concluding hastily and stay in your lane.

HenriXI:


I've been with Coscharis motors for a while so i have a fair knowledge of vehicles (Studied Mech. Engr in school tho!). The Foxwell Scan tool is mine and i also own a wireless UCANDAS diagnostic & Programming tool.

I can fetch you the data you need and if we have to, i can work with you on the phone to try out different things.

My mechanic is also a friend who is open and ready to learn. I'm sure with both of us onboard, we can work it out.

HenriXI:


I've been with Coscharis motors for a while so i have a fair knowledge of vehicles (Studied Mech. Engr in school tho!). The Foxwell Scan tool is mine and i also own a wireless UCANDAS diagnostic & Programming tool.

I can fetch you the data you need and if we have to, i can work with you on the phone to try out different things.

My mechanic is also a friend who is open and ready to learn. I'm sure with both of us onboard, we can work it out.

HenriXI:


I've been with Coscharis motors for a while so i have a fair knowledge of vehicles (Studied Mech. Engr in school tho!). The Foxwell Scan tool is mine and i also own a wireless UCANDAS diagnostic & Programming tool.

I can fetch you the data you need and if we have to, i can work with you on the phone to try out different things.

My mechanic is also a friend who is open and ready to learn. I'm sure with both of us onboard, we can work it out.

AutoElectNG:


Curious question #3...Please send me your VIN via email or WhatsApp, I would love to run some tests on it? Thank you.

LUDATRAVELS:

Bros e be like say your own too much for this matter
You alone don ask plenty questions and the owner never even look your side .why you no face another forest to hunt or na by force he must patronise you