P1640 code, check engine light.
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Joined: Aug 2014
Posts: 709
Likes: 15
P1640 code, check engine light.
Yesterday I was driving my car and I turned it on and it ran a little rough for like 5 seconds And then went back to normal. The check engine light turned on checked the code and it is a p1640 code. I have read that it is a ECM related code. I had my battery go flat about a month ago and I jumped the fuse box jump to open the frunk then jump started the battery. That caused my airbag light to come on I have since reset the light. Could that jump start have caused an issue with this code as well? My car is a 2009 Porsche Boxster PDK 2.9
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Joined: Mar 2011
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From: Spring Lake, NJ, US of A
This is what AllDataDIY has to say about that code:
P1640
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are stored. Control module wake-up through:
To answer your question - dunno. Damage can be done to solid state devices by high-voltage transients running around the electrical system. Sometimes the damage doesn't appear for some time. Most electronics is better protected against this sort of damage then when solid-state first appeared in cars. High-voltage transients can be generated by the spark of hooking up a live battery to a car with a dead battery.
If it was me..
1. I'd clear the code and see if it reappears.
2. If it reappears you're going to have to visit someone with a PIWIS (dealer or Porsche specific independent..)
P1640
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are stored. Control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- key contact (terminal S)
- "Ignition on"
- Control module is incorrectly coded
- Periphery connected to specified control module is incorrect
- Control module faulty (in most cases the cause is not the control module but incorrect coding.)
- The specified control module sends only substitute values via the CAN.
- Other control modules detect these substitute values and set this fault code.
To answer your question - dunno. Damage can be done to solid state devices by high-voltage transients running around the electrical system. Sometimes the damage doesn't appear for some time. Most electronics is better protected against this sort of damage then when solid-state first appeared in cars. High-voltage transients can be generated by the spark of hooking up a live battery to a car with a dead battery.
If it was me..
1. I'd clear the code and see if it reappears.
2. If it reappears you're going to have to visit someone with a PIWIS (dealer or Porsche specific independent..)
Thread Starter
Rennlist Member
Joined: Aug 2014
Posts: 709
Likes: 15
This is what AllDataDIY has to say about that code:
P1640
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are stored. Control module wake-up through:
To answer your question - dunno. Damage can be done to solid state devices by high-voltage transients running around the electrical system. Sometimes the damage doesn't appear for some time. Most electronics is better protected against this sort of damage then when solid-state first appeared in cars. High-voltage transients can be generated by the spark of hooking up a live battery to a car with a dead battery.
If it was me..
1. I'd clear the code and see if it reappears.
2. If it reappears you're going to have to visit someone with a PIWIS (dealer or Porsche specific independent..)
P1640
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are stored. Control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- key contact (terminal S)
- "Ignition on"
- Control module is incorrectly coded
- Periphery connected to specified control module is incorrect
- Control module faulty (in most cases the cause is not the control module but incorrect coding.)
- The specified control module sends only substitute values via the CAN.
- Other control modules detect these substitute values and set this fault code.
To answer your question - dunno. Damage can be done to solid state devices by high-voltage transients running around the electrical system. Sometimes the damage doesn't appear for some time. Most electronics is better protected against this sort of damage then when solid-state first appeared in cars. High-voltage transients can be generated by the spark of hooking up a live battery to a car with a dead battery.
If it was me..
1. I'd clear the code and see if it reappears.
2. If it reappears you're going to have to visit someone with a PIWIS (dealer or Porsche specific independent..)