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Discussion Starter #1
hello guys it seems my car is missing some fuses, please look and tell me what do you think 27. 16. 23 are missing
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What doesn't work? Did you look in the manual? SWAG is charge door (later ones aren't powered though i.e. my 2014 won't have one) and fuel tank pressurization pump and selenoid.
 

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Discussion Starter #3
today i got some DTC B3125. 3130 3135 i wonder may be its because of this fuses? my car is also 2014. i dont know what to do also it drains 12v battery. looking for some advice
 

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Is this your original battery? It might be possible that your battery needs replacing given that it is loosing charge.
I have read that many problems can be caused by the battery dying. Get it tested ASAP is my suggestion.
You might also put your location and model year in your signature.
 

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Discussion Starter #5
thanks for reply guys, the 12v battery is about 3 month old its hold the charge well, the only problem is it drains during night. and i god some DTC B3125 3130 3135. can it be a faulty fuse what do you think?
 

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thanks for reply guys, the 12v battery is about 3 month old its hold the charge well, the only problem is it drains during night. and i god some DTC B3125 3130 3135. can it be a faulty fuse what do you think?
I don't see those error codes listed in the diagnostics PDF, but I did find them using a Google search for DTC B3125. Do you have Google search?

You have a short somewhere in your door lock circuit.
 

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Fuses 16 and 27 aren't used in the Volt. GM uses the same fuse box for a lot of models. These two fuses are used in GMs with load leveling suspensions.
 

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Fuses 16 and 27 aren't used in the Volt. GM uses the same fuse box for a lot of models. These two fuses are used in GMs with load leveling suspensions.
So my SWAG is wrong it's not for pressurizing the fuel tank. Well, it was just a guess.
 

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thanks for reply guys, the 12v battery is about 3 month old its hold the charge well, the only problem is it drains during night. and i god some DTC B3125 3130 3135. can it be a faulty fuse what do you think?
A bad fuse is easy to check. Can't do it on the internet though. ;). Model year might help. There were some specific issues causing 12v battery drain in some early Gen 1 Volts and fixes for the problem. Maybe a simple check is leave the 12v battery disconnected and see if it's still sufficiently charged in the morning. Either you have an abnormal current drain or a bad battery. Even new batteries can go bad or be defective.
 

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Discussion Starter #10
friends some new info i bought the 12v baattery not so long time ago it holds the charger when i leave it disconnected. also when i lock drivers side door with key in it only locks driver door not all 4, how is yours? it should be like that? it seems i have some kind of problem with door locking mechanism. also i find there is some F9 fuse which may be cause of draining battery
 

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As I said above, it looks like you have a short circuit. A blown fuse is a symptom, not a cause. When fuses go "bad" (when they blow) they disconnect the circuit, not short it.
 

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Discussion Starter #12
for example can it be a faulty drivers door LOCK LATCH ACTUATOR? because i disassembly the door and the wires seems all ok.
 

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I might add that just because you have a relatively new battery doesn't mean that the battery isn't bad. A few years ago I bought a battery for another can and less that 6 months later I had it changed under warranty because it had a bad cell and it was failing as well.
Just because the battery is new doesn't necessarily mean that it is good. It's rare but it is certainly a possibility.
 

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for example can it be a faulty drivers door LOCK LATCH ACTUATOR? because i disassembly the door and the wires seems all ok.
I could be a short anywhere along the circuit.
 

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Discussion Starter #15
should i check all 4 door wires and LOCK ACTUATORS? have you ever heard the problem like that in volt?
 

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I think you need to buy the service manual. I found this:

DTC B3125, B3130, or B3135
Diagnostic Instructions
• Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
• Review Strategy Based Diagnosis for an overview of the diagnostic approach.
• Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors
DTC B3125 02: Driver Door Only Unlock Circuit Short to Ground DTC B3125 04: Driver Door Only Unlock Circuit Open
DTC B3130 02: All Doors Unlock Circuit Short to Ground
DTC B3130 04: All Doors Unlock Circuit Open
DTC B3135 02: All Doors Lock Circuit Short to Ground DTC B3135 04: All Doors Lock Circuit Open

The body control module (BCM) controls the door lock, passenger door unlock and driver door unlock circuits. Voltage is applied to the appropriate circuit when the BCM detects a door lock/unlock switch activation or a keyless entry lock or unlock command.

Conditions for Running the DTC
The system voltage is 9-16 V.

Conditions for Setting the DTC
B3125 02, B3130 02, B3135 02
The BCM detects a short to ground on a door latch control circuit.

B3125 04, B3130 04, B3135 04
The BCM detects an open/high resistance on a door latch control circuit

Action Taken When the DTC Sets
All the power door locks will be inoperative.

Conditions for Clearing the DTC
• This DTC will be current for as long as the fault is present.
• When the fault is no longer present, the DTC will be a history DTC. • A history DTC will clear after 50 ignition cycles.

Electrical Information Reference
• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs

Circuit/System Verification
Command the door latches to LOCK and UNLOCK with a scan tool. Observe the operation of the door latches, each door should LOCK and UNLOCK when changing between the commanded states.

Circuit/System Testing
1. Vehicle OFF, disconnect the X2 harness connector at the K9 BCM.
2. Vehicle in Service Mode, verify that a test lamp illuminates between the B+ circuit terminal 4 and ground.
If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance 3. Vehicle OFF, disconnect the X6 harness connector at the K9 BCM.
4. Disconnect the X1 harness connector at the X50A fuse block-under-bonnet.
5. Test for infinite resistance between the control circuit listed below and ground:
• Connector X1, terminal 11 at the X50A fuse block-under-bonnet
• Connector X1, terminal 12 at the X50A fuse block-under-bonnet
• Connector X6 terminal 1 at the K9 BCM
• Connector X6 terminal 4 at the K9 BCM

If not the specified value, test the appropriate control circuit for a short to ground. If the circuit tests normal, test or replace the appropriate A23 door latch assembly.
6. Connect the X1 harness connector at the X50A fuse block-under-bonnet.
7. Test for infinite resistance between the control circuit terminal 2 X6 at the K9 BCM and ground.
If not the specified value, test the control circuit for a short to ground. If the circuit tests normal, replace the X50A fuse block-under-bonnet.
8. If all circuits test normal, replace the K9 BCM.

Component Testing

1. Vehicle OFF, disconnect the harness connector at the appropriate A23 door latch assembly.
2. Install a 25 A fused jumper wire between one of the control terminals and 12 V. Momentarily install a jumper wire between the other control terminal and ground.
Reverse the jumper wires at least two times, the A23 door latch assembly should perform the LOCK and UNLOCK functions. If it does not perform as specified, replace the A23 door latch assembly.
 

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Discussion Starter #19
thanks for help problem was solved, the issue was faulty 12v battery it was brand new but seems volt needs only AGM battery
 

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thanks for help problem was solved, the issue was faulty 12v battery it was brand new but seems volt needs only AGM battery
I bought a 2012 Volt a year and a half ago and just found that it had a regular lead acid battery, I would say that the Volt doesn't know what battery is in it. AGM Is the correct choice for various reasons but a wet acid battery works.
 
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