32 Volts at 4 X 4 Transfer Case Selector Filtered Voltage

[Renie]

May I know why the Launch X431 scanner reads 32 volts at 4 X 4 Transfer Case Selector Filtered Voltage instead of 0 - 5 volts. May I also know the location of this Module or device that I can measure this output voltage. Attach with this post was the data stream from the scanner. The unit is Ford Ranger Wildtrak 2016.

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[Dereku]

Scan tool might be reading the wrong range. Like my digital boost gauge has an offset as well as a few others I could change. That would be my guess. 32v on a 12v system would cause issues

 

[airline tech]

I would have to check with my scanners, but sometimes (especially) if you only do a by Make & Model scan vs VIN# Specific, the Tool Software will load a PID that is not specific to the Ranger the (Software) default is to display 32 and misleading.
As you have the switch indicating (Position) - Switch Status (2WD) it is working.
If you can shift (2WD) to (4WD HI) and (4WD Lo) it's working and if you do not have any codes for it as well is a key indicator of a Scan Tool (PID) add that is not relevant to the truck.
It is COMMON for non (OE) scan software for these PID's to show up, you just have to know whether to ignore it or not.
So, I think that PID is not a supported PID by the Ranger, the Scan Tool loaded it and since there is no actual PID data to report (its defaulted) to 32 Volts

 

[Renie]

Thanks for your reply. Is there a passibility that the 32 volts in a 12 volts system comes from a voltage spike during the off time then the scanner reads the average voltage and maybe this was the cause of that 32 volts PID.

 

[Renie]

I would have to check with my scanners, but sometimes (especially) if you only do a by Make & Model scan vs VIN# Specific, the Tool Software will load a PID that is not specific to the Ranger the (Software) default is to display 32 and misleading.
As you have the switch indicating (Position) - Switch Status (2WD) it is working.
If you can shift (2WD) to (4WD HI) and (4WD Lo) it's working and if you do not have any codes for it as well is a key indicator of a Scan Tool (PID) add that is not relevant to the truck.
It is COMMON for non (OE) scan software for these PID's to show up, you just have to know whether to ignore it or not.
So, I think that PID is not a supported PID by the Ranger, the Scan Tool loaded it and since there is no actual PID data to report (its defaulted) to 32 Volts

There was an iintermittent issue to the egr which is egr circuit A high and also egr valve stuck closed. There is also an intermittent issue to the TCM “
1.U0401:00-64 Data Received From ECM(Engine Control Module)/PCM (Powertrain Control Module) A Is Invalid”

when these issues were triggered, engine light comes on then when swithing from 2H to 4H or to 4L the indicator just blinking and will not engaged.

after clearing the code and engine lights off it will work as it could just fine. Thanks for an informative reply.

 

[khyros]

I wouldn't expect to actually be seeing 32V. You have to think about where that would come from - and even if you powered a powered line, it doesn't add 12V+12V, you just end up with a short to power.

You also have the fact that it's showing your ETB at 100%, but then "bank 1 ETB" at 0%. It doesn't look like you're getting a good reading to actually diagnosis your problem.

But just looking at your DTCs, if you havea EGR circuit A high, that sounds to me like either a wiring issue or an actuator issue. I wouldn't worry about the U0401. That sounds like a subsequent DTC. The fact that you have another issue though sounds to me like probably a wiring issue. I would take a look at what harnesses are common between the two, and then start searching for some rodent damage along that harness.

 

[Renie]

I wouldn't expect to actually be seeing 32V. You have to think about where that would come from - and even if you powered a powered line, it doesn't add 12V+12V, you just end up with a short to power.

You also have the fact that it's showing your ETB at 100%, but then "bank 1 ETB" at 0%. It doesn't look like you're getting a good reading to actually diagnosis your problem.

But just looking at your DTCs, if you havea EGR circuit A high, that sounds to me like either a wiring issue or an actuator issue. I wouldn't worry about the U0401. That sounds like a subsequent DTC. The fact that you have another issue though sounds to me like probably a wiring issue. I would take a look at what harnesses are common between the two, and then start searching for some rodent damage along that harness.

Thank You very much for the good info. God Bless

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