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JOHN aka Eauto
JOHN aka Eauto, The Car Guy
Category: Chevy
Satisfied Customers: 16048
Experience:  ase tech
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I have 2016 chevrolet silverado whith this code b1517 5A the

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i have 2016 chevrolet silverado whith this code
b1517 5A the truck is doing this code since is new

Hi . Thank you for asking your question on JustAnswer.

Thank you again for trusting us with your problem. John aka eauto

thats a battery voltage code...has chevy attempted to repair?

Customer: replied 7 months ago.
I know it battery voltage do you have diagnostic charts for this truck i do not have any dealer Gm where i live
  1. Observe the appropriate module scan tool Battery Voltage parameters.
  2. Verify that the scan tool displays a value that is within 2 V of the battery terminal voltage.

¤If the voltage is not at least within 2V check charging system

If within 2V of the battery voltage

  1. All OK.

Circuit/System Testing

Note: Use the schematic to identify the following:

  • Control modules the vehicle is equipped with
  • The control module's ground, B+, and Ignition circuit terminal IDs and connectors

Note: Some control module ground circuits may require up to 20 min after the ignition is turned off before achieving a resistance reading of less than 5 ohms. In most cases the readings will drop below 20 ohms within 1 min indicating the control module is going to sleep.

  1. Ignition OFF and all vehicle systems OFF, disconnect the harness connectors at the appropriate control module. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 10 ohms between each ground circuit terminal and ground.

¤If 10 ohms or greater

  1. Ignition OFF.
  2. Test for less than 2 ohms in the ground circuit end to end.

¤If 2 ohms or greater, repair the open/high resistance in the circuit.

¤If less than 2 ohms, repair the open/high resistance in the ground connection.

¤If less than 10 ohms

  1. If equipped, verify a test lamp illuminates between each B+ circuit terminal and ground.

¤If the test lamp does not illuminate and the circuit fuse is good

  1. Ignition OFF.
  2. Test for less than 2 ohms in the B+ circuit end to end.

¤If 2 ohms or greater, repair the open/high resistance in the circuit.

¤If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse.

¤If the test lamp does not illuminate and the circuit fuse is open

  1. Ignition OFF.
  2. Test for infinite resistance between the B+ circuit and ground.

¤If less than infinite resistance, repair the short to ground on the circuit.

¤If infinite resistance, replace the appropriate control module.

¤If the test lamp illuminates

  1. Ignition ON.
  2. If equipped, verify a test lamp illuminates between each ignition circuit terminal and ground.

¤If the test lamp does not illuminate and the circuit fuse is good

  1. Ignition OFF.
  2. Test for less than 2 ohms in the ignition circuit end to end.

¤If 2 ohms or greater, repair the open/high resistance in the circuit.

¤If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse.

¤If the test lamp does not illuminate and the circuit fuse is open

  1. Ignition OFF.
  2. Test for infinite resistance between the ignition circuit and ground.

¤If less than infinite resistance, repair the short to ground on the circuit.

¤If infinite resistance, replace the appropriate control module.

¤If the test lamp illuminates

  1. Replace the control module.
Customer: replied 7 months ago.
is this the diagnostic charts for my codesthe symptom is 5A
Customer: replied 7 months ago.
I did all the test and all module are good i dont have 2 v difference you think they have something to reprogramme

yes it is....did you try resetting?

Customer: replied 7 months ago.
I did not try do they have at dealer any service buletin for this code
Customer: replied 7 months ago.
wath do you mean by resetting

clearing with scan tool?

Customer: replied 7 months ago.
many time and i have the GDS tool

ahh... then you may have to take it in...maybe a module issue or a wiring issue

Customer: replied 7 months ago.
Like told you i cannot bring this truck at dealer cost me around 4000 us dollard to go to dealer
Do you work at dealer you

yes i do....wow 4000 you must be very far

Customer: replied 7 months ago.
no road only by boat and only during summer

wow...where do u live if i may ask?

have you done a load test on the battery?

Customer: replied 7 months ago.
kuujjuarapik in canada is it -34 c herei work there 10 days monthi did not do load test on batt
but it start very good

can you ?

Customer: replied 7 months ago.
tomorow

let me know

Customer: replied 7 months ago.
tommorow

ok great

Customer: replied 7 months ago.
I did load test and the battery is good did another test i put the batterie whith the charger and still give me this code when i start the truck

ill opt out maybe someone else has something

Different expert here, Here is a link from the service manual.

https://www.dropbox.com/s/he5nyaashwflcqj/b1517.pdf?dl=0

Please reply to this if you need more help and we can continue this conversation. This does not have to be my only answer. If you are satisfied with my service, please rate at the top of the screen. Rating does not close out your question. Remember, sometimes it is difficult to completely diagnose your vehicle without being there, but I will try to give you the best answer I can.

Please only Rate 5 stars. If you feel you need to rate less than that let me know so I can help more.

Thank you.

Disconnect both battery cables (negative first then positive) and hold them together, and let it sit for 10 minutes. Reconnect battery cables one at a time, positive first then negative. This should reset the system.

Customer: replied 7 months ago.
I did all the test please read the post are you working in dealer GM i am Mastertech i need people workink in dealer maybe did have the same problem

Hello what module are you getting the code from?

Customer: replied 7 months ago.
It start with B so in body
Customer: replied 7 months ago.
I did scan all the module

i'm working on it now. It could be a bad module. just a minute please

What is the symptom? lights in dash on?

If all your voltage checks are good. It sounds like the module that is setting the code is the problem. I think it is coming from your Body Control Module. i have had alot of them cause similar problems. It does have to be programmed when replaced.

Customer: replied 7 months ago.
it say low batterie

We have also had a lot of bad negative battery cables. The bad cables show up when you performed a voltage drop test on the negative cable.

Customer: replied 7 months ago.
i check this tomorow

Ok let me know

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JOHN aka Eauto, The Car Guy
Category: Chevy
Satisfied Customers: 16048
Experience: ase tech
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