A/T and Super Select front flashing

[Thomascrom]

Hello guys, I hope someone can help me, I have a Delica L400 and I feel that it is not moving as it should, I have the A/T and Super Select lights for the front tires flashing.

Before writing this post, I want you to know that I carried out an investigation into the case. I pulled the codes manually with a cable on pin 1 and to ground on the body and it gave me a long flash and a short flash, which means 11, which is the SP sensor. which I changed for a new one and the light continues flashing, I disassembled the dash in search of any cables or loose connections and everything was fine, it still continues with the A/T light flashing
I don't know what to do anymore, I checked the wiring underneath and everything looks fine and the fuses too.

Regarding the super select light, change the vacuum sensor that goes under the fuse box and the lights still remain the same, check the hoses that go to the transmission in search of a loose or broken one and I see them fine, but I'm going to change them anyway, I don't know what else I can do
When I use the 4wd I don't feel the strength that the truck should have, I don't know if they are 2 separate failures or if they have something to do with each other.

In any case, since I have it it has been like this, the one thing that I see adapted are some diesel pressure and EGT voltmeter gauges, which they

put in the center console where the original ones go and there are 2 loose connections, I suppose they are from the original connections

I forgot, the screen of the climate control controller is also off, which I bought and I hope it arrives, and another thing is that when I insert the key into the switch and put it in the on position, if it is turned on, the a/c is activated when it is off, it doesn't. I know if the same fault exists or why

Help…

 

[DustAngel]

I would imagine that the sensor or wiring for the 4wd function could be faulty. If you don’t feel that the van is going into 4wd, it is possible that there is a mechanical issue and why the lights are always flashing. I think vacuum would be good because the default fails into 4wd so I am curious to the transfer case mechanical at this point.

 

[Thomascrom]

I would imagine that the sensor or wiring for the 4wd function could be faulty. If you don’t feel that the van is going into 4wd, it is possible that there is a mechanical issue and why the lights are always flashing. I think vacuum would be good because the default fails into 4wd so I am curious to the transfer case mechanical at this point.

I had never really had a Delica, it is my first, but I have had several off-road vehicles from different brands and generally when the 4wd is engaged and activated, the vehicle feels with a lot of torque at low rpm, which I don't feel here, although the The screen indicates that it is activated and the lever is soft. But I would like to solve these details that bother me, the speedometer and overdrive work perfectly.

 

[sk66]

I think vacuum would be good because the default fails into 4wd so I am curious to the transfer case mechanical at this point.

Isn't that when the front wheels flash; when they are in 4WD and shouldn't be? (i.e. bad vacuum)

 

[DustAngel]

You just may be correct and my wording was wrong. I know if the engine stalls the van loses vacuum to the actuator and defaults into 4wd. If the lights are flashing then yes, you very well could have a vacuum issue. I was under the Impression on original post that this van in question doesn’t operate in 4wd even when selected?

 

[sk66]

I was under the Impression on original post that this van in question doesn’t operate in 4wd even when selected?

Me too... maybe the lights flash anytime the front diff solenoid/locking pin are not in the correct position?

In that case, the pin may be jammed, the return spring broken, or the return solenoid not getting vacuum. It uses vacuum to retract the pin and to return the pin, but it also has a return spring so it defaults to engaged when there is a vacuum issue.

 

[Thomascrom]

If I couldn't tell you, actually when I apply the 4wd the lights stay steady on all 4 wheels, when I apply the high it turns on orange in the center, I have been checking tirelessly and in another forum they say that when you change the radio or do you take it out Without care, you could damage a cable from the 4wd ecu, which is the blue box that is under or behind the radio. I don't know. This vehicle already came with an aftermarket radio already installed. I suspect that's where the problem may come from. Super select problem but would it also have to do with the A/T light?

 

[Thomascrom]

Pajero flashing light fix

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[kbrown934]

If I am following this correctly: vacuum failure causes front axle to engage, this is default mode. If tcase shifter is in 2WD, this is incongruent with axle being locked and this trips flashing dash indicator.

 

[Thomascrom]

How could I see if that would be it? I have run it in 4wd and take it off, then I go in reverse in 2wd to see if the front light goes off or goes off but I think it is more of an electrical problem.

 

[Thomascrom]

Yesterday I changed the vacuum sensor and it was still on. I just got into the car and by a work of art the super select no longer turns on but the A/T continues.

 

[Thomascrom]

I put the 4wd back in to see what happened and the light kept flashing again lol

 

[Thomascrom]

Me too... maybe the lights flash anytime the front diff solenoid/locking pin are not in the correct position?

In that case, the pin may be jammed, the return spring broken, or the return solenoid not getting vacuum. It uses vacuum to retract the pin and to return the pin, but it also has a return spring so it defaults to engaged when there is a vacuum issue.

I found a loose brown cable coming out of the emergency brake lever and it was wrapped under the pilot's chair, any idea what it could be or where it goes?

 

[sk66]

I found a loose brown cable coming out of the emergency brake lever and it was wrapped under the pilot's chair, any idea what it could be or where it goes?

Probably for touch screen radio (some are disabled unless they get a park signal).

 

[Thomascrom]

Probably for touch screen radio (some are disabled unless they get a park signal).

Thank you, yes I imagined later that it could be from the radio screen, I continue with the search for the electric gremlins, a question when the key is passed is it normal to hear a click click and then two more times but faster click click for the side of the engine where is the battery or diesel filter?

 

[Thomascrom]

Probably for touch screen radio (some are disabled unless they get a park signal).

Today I realized in the morning it was still dark that the super select light stopped flashing and when I turned on the turn signal at the same time as flashing the turn signal so did the one on the front wheels SS I'm going to check the points of ground to see if it could be some fault that causes this and the A/T light flashing

 

[ShelbyD]

Me too... maybe the lights flash anytime the front diff solenoid/locking pin are not in the correct position?

In that case, the pin may be jammed, the return spring broken, or the return solenoid not getting vacuum. It uses vacuum to retract the pin and to return the pin, but it also has a return spring so it defaults to engaged when there is a vacuum issue.

Yes the lights flash/solid based on the actual 4wd actuator position, nothing to do with vacuum or solenoids. If anything causes a failure for actuator to move (usually lack of vacuum or solenoid actuation) then it will flash.

 

[Thomascrom]

Yes the lights flash/solid based on the actual 4wd actuator position, nothing to do with vacuum or solenoids. If anything causes a failure for actuator to move (usually lack of vacuum or solenoid actuation) then it will flash.

Thank you, if when I apply 4wd the light stays on on all 4 wheels when I change it to 2wd it stays flashing, check and change the selenoid and it still continues flashing the same, I miss it in the way it does it, today they turned off as they should and When I turned and turned on the light, the SS lights were also flashing.

 

[ShelbyD]

Thank you, if when I apply 4wd the light stays on on all 4 wheels when I change it to 2wd it stays flashing, check and change the selenoid and it still continues flashing the same, I miss it in the way it does it, today they turned off as they should and When I turned and turned on the light, the SS lights were also flashing.

If you changed the solenoids then this behaviors suggests a vacuum leak somewhere, or a sticky actuator. They need cleaned and greased and it probably never has been so it might be that or a cracked vacuum hose somewhere. Finally vacuum pump might be weak? Not sure. If you have a vacuum brake bleeder tool then try putting a vacuum on the actuator lines and see if you can reliably get the flashing to be off.

 

[Thomascrom]

If you changed the solenoids then this behaviors suggests a vacuum leak somewhere, or a sticky actuator. They need cleaned and greased and it probably never has been so it might be that or a cracked vacuum hose somewhere. Finally vacuum pump might be weak? Not sure. If you have a vacuum brake bleeder tool then try putting a vacuum on the actuator lines and see if you can reliably get the flashing to be off.

Oh perfect, I'll see if I can do that test, I don't have that tool but I think I can get one, I'm going to change all the fluids for preventive maintenance and see if I can eliminate the A/T flashing light.
In the A/T I have a code 11 and I changed the speed sensor and it continues the same without