No crank/no start after battery change (1 Viewer)

[Skrallan]

4.5 V8 diesel 2016 200 series.
One morning about a week ago, it decided not to start. I was offshore, so I got a friend to change the batteries, but i still would not start.
When I got back home, I changed the FOB batteries, just to be sure.

Before the batteries were changed, both FOBs worked. Now only one does.

Everything seems normal. I unlock the car, with the FOB. Push the brake, the ON button turns green, but nothing happens when I push it.
All lights, radio etc is working, but it is not cranking/starting.

I noticed that the immobilizer light is blinking, and never stops, no matter what I do.

Have tried with a jumper between 4 and 13 in the OBD2 plug, left in for 30-60mins, no success.
Checked all fuses/relays.
No corrotion/bad connections.
Had Toyota service plug their computer, but they could not find anything.

To me it seems, the issue is immobilizer related... or?

Thanks in advance.

 

[TheComedian]

Hm strange behavior. One thing I would try is disconnect both batteries and let it sit for like 15min and also press the start button to make sure the car is fully without power and then reconnect the battery so the car can fully initialize freshly.

Then you can check whether the ignition comes on. So without pressing the brake (or clutch if you have a manual one) pressing once, and then the second time. Also hold you keyfob to the starter button so you don’t have to care about if it is maybe the battery in the keyfob.
In the picture you see what I am talking about

I guess you don’t have a laptop or device with techstream to check how many keys are written into the ecu?

But anyways, I would try these steps first since a good amount of problems with the 200 can be solved with the good old car version of „did you try to turn it off and on again?“

Ohh an before I forget. There is something your coin cells up there in Denmark likely have as well as we have some kilometers more southern… did you check that you don’t have any coating left on them? They have often some kind of a bitter coating so kids don’t swallow them. Wipe them with isoprop or just scratch the surface were the keyfob touches them.

Oh and welcome at ih8Mud

 

[Skrallan]

Hm strange behavior. One thing I would try is disconnect both batteries and let it sit for like 15min and also press the start button to make sure the car is fully without power and then reconnect the battery so the car can fully initialize freshly.

Then you can check whether the ignition comes on. So without pressing the brake (or clutch if you have a manual one) pressing once, and then the second time. Also hold you keyfob to the starter button so you don’t have to care about if it is maybe the battery in the keyfob.
In the picture you see what I am talking about
View attachment 3927831

I guess you don’t have a laptop or device with techstream to check how many keys are written into the ecu?

But anyways, I would try these steps first since a good amount of problems with the 200 can be solved with the good old car version of „did you try to turn it off and on again?“

Ohh an before I forget. There is something your coin cells up there in Denmark likely have as well as we have some kilometers more southern… did you check that you don’t have any coating left on them? They have often some kind of a bitter coating so kids don’t swallow them. Wipe them with isoprop or just scratch the surface were the keyfob touches them.

Oh and welcome at ih8Mud

Thanks for your reply.

I disconnected both batteries last night and left them off overnight.
Nothing changed.

Even charged the old batteries and mounted them, still the same.

Cleaned off the keyfob batteries. Still only one connecting to the car.

When the Toyota tech was here with the laptop, we noticed that only one keyfob was registered...
Strange since two have been used until this happened.
He tried to get the second keyfob stored, but was not successful.


Status at the moment is the same.
I can unlock/lock it with the keyfob.
But it takes 2-3 clicks on lock/unlock buttons after entering the car, to get the START/STOP button to light up.
It does NOT say "Key not detected" but just stays off.
After a few pushes on the lock/unlock buttons, while sitting inside the vehicle, the START/STOP button lights up.

* First push on START button, brake not pushed.
The steering wheel moves into position and radio/screen starts. Dashboard stays dark. Red Immobilizer light blinking.

* Second push on START button, brake not pushed. Dashboard lights up. Immobilizer light still blinking.

* Pushing brake, START button turns green. Immobilizer light still blinking.
Brake lights on.
Can hear pump running, as brakepedal is pressed.

* Third push on START button, nothing changes. Immobilizer still blinking.
Not relay clicking.
Have measured voltage on ST relay, no voltage, meaning the relay does not get an order to start the engine.

To me it seems odd that the Immobilizer light never stops blinking.

Have checked two Prados today. There the Immobilizer light stops blinking as soon as you touch the START button the first time.....

Thanks for the welcome
Looks like an interesting forum with alot of knowledge!

 

[TheComedian]

Hm ok sounds rly strange that the other keys disappeared innthe system wich could maybe mean that the eprom on the key ECU has some problems that goes way above my knowledge.

When the Toyota tech tried newly teach the other keys at wich point did it fail? The last step were it says something like „put the key now on the passenger seat blablabla“? Because that could be a own problem by itself I experienced at my 200 after I lost my second key somewhere in the woods (jepp the car give a f if the key is around as long as it’s running already…). After lots of research I found the solution at a Prius forum. The key signals get detected by piezo elements wich are mounted on multiple points in the car lile the doors, in the trunk and there is also one in your middle dash. Mine got loos or the pre owner disconnected it ba accident. Everything was running smooth but it looks like this piezos only job is to verify the last step when teaching new keys.
If you open your cup holder and pull it out there should be some white lighter sized plastic thingie somewhere in the front direction with a plug. Easy to check within a minute. Btw when you ever get into the situation of readjusting your hand break that’s the spot…

let’s throw some other idea into the ring I have rn

I know it would be weird that the dead battery falls together with this but you didn’t use the car for some time as you said… did you check of your break switch (or clutch switch if you have a manual 200) is working properly? Maybe spraying some contact spray there or just check if the brake light turns on when ignition is on. Could be also a reason for not starting

 

[Skrallan]

Today I checked the plugs down by the floor on the driverside (LHD) and found some corrosion on the lowest plug. Where you need a 10mm socket to disconnect the plugs.
Two pins were damaged, where one actually fell off and stayed in the female side of the plug...

I cut off these two wires, connected them straight to each other, bypassing the plug.
(Did this with the batteries connected, maybe stupid...?)

This corrosion HAS to be the main reason for the non-start issue, but to my surprise it did not change anything....

Disconnected batteries for 10mins...
Did the OBD jumper reset for 30-40mins..

Still nothing changed


Started googeling and found some indian video related to the no crank/no start issue.
Of course, I did not understand what they were saying, but noticed that they talked about "b2288 steering lock unlock waiting time over".

Then I remember the Toyota tech mentioned that error, and just turning the steering wheel and saying that must be an old error or not related to the non-start issue...

So my guess now is that the problems started from this plug getting wet (the infamous sunroof drain thing I guess)
Then maybe that led to the
"b2288 steering lock unlock waiting time over"
error, which I cannot reset/erase without some kind of OBD reader or Toyotas software.

I will get in touch with Toyota on Monday and get the to clear all errors and then I'll let you know

Another question, do you guys have a cheap handheld OBD reader or the Toyota software on a laptop?