Hello.
I have well published issue where my car won't start when i turn key to START position. Everything works normally up until START - dash lights up and remote start also works flawlessly.
For a year or more it worked intermittently - I could turn the key few times until it started. Success rate was better if I pushed key a bit to right/top edge. Now it won't start with turning key no matter how hard I try.
I'm aware of 1st gen WIN module issues where contacts get bad connection - I dissassembled my WIN module, just to find out I have a 3rd gen module - yes, my Chrysler 2009 T&C 4.0L has had a recall of this unit [1] and got a newer module which has better design (it has optical transistors in there that detect key position and no more physical contacts).
Those optical transistors are working correctly - when inspecting CAN messages, the software reports me correctly when the key is in START position - so up until this moment it is OK.
But I have the following error:
B2101 - IGNITION RUN/START INPUT CIRCUIT LOW
I want to localize whether WIN or TIPM is at fault.
I suspect this is PNK/WHT (IGN RUN-START) wire that goes out of WIN module to the TIPM and TIPM may report this error. I actually measured what Voltage there is, but I'd like to ask what would be the expected voltage on this wire? I measured at the WIN module side, voltage on IGN RUN-START changes when changing key positions. When ON position it jumps from (forgot the value, it was <10V) to 11.5V. When START position, it doesn't change and stays the same - 11.5V. Should it change between ON and START? Should it be more?
I have multiple questions in mind:
So, maybe someone can shed a light?
Ideally elecronics repair shop could repair either TIPM or WIN, less ideally but also OK if I know what to buy & change.
[1] chrysler.com/universal/webselfservice/pdf/R03.pdf
I have well published issue where my car won't start when i turn key to START position. Everything works normally up until START - dash lights up and remote start also works flawlessly.
For a year or more it worked intermittently - I could turn the key few times until it started. Success rate was better if I pushed key a bit to right/top edge. Now it won't start with turning key no matter how hard I try.
I'm aware of 1st gen WIN module issues where contacts get bad connection - I dissassembled my WIN module, just to find out I have a 3rd gen module - yes, my Chrysler 2009 T&C 4.0L has had a recall of this unit [1] and got a newer module which has better design (it has optical transistors in there that detect key position and no more physical contacts).
Those optical transistors are working correctly - when inspecting CAN messages, the software reports me correctly when the key is in START position - so up until this moment it is OK.
But I have the following error:
B2101 - IGNITION RUN/START INPUT CIRCUIT LOW
I want to localize whether WIN or TIPM is at fault.
I suspect this is PNK/WHT (IGN RUN-START) wire that goes out of WIN module to the TIPM and TIPM may report this error. I actually measured what Voltage there is, but I'd like to ask what would be the expected voltage on this wire? I measured at the WIN module side, voltage on IGN RUN-START changes when changing key positions. When ON position it jumps from (forgot the value, it was <10V) to 11.5V. When START position, it doesn't change and stays the same - 11.5V. Should it change between ON and START? Should it be more?
I have multiple questions in mind:
- Is 11.5V too low?
- If 11.5V is enough, maybe harness is bad and I should check at TIPM side if there is still ~11.5V.
- What if I find 11.5V at TIPM side - maybe WITHIN TIPM itself there is an issue that it thinks voltage too low?
So, maybe someone can shed a light?
Ideally elecronics repair shop could repair either TIPM or WIN, less ideally but also OK if I know what to buy & change.
[1] chrysler.com/universal/webselfservice/pdf/R03.pdf