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Discussion Starter · #1 ·
Hi everyone, I recently picked up a new to me 2017 Volt. Unlike my last 2 Volts that I got new (2013 & 2014) this one I bought used and damaged. I was hoping to drive it off the trailer and put it on my L2 charger (car didn't come with a L1) as I don't know how dead it is or how long it's been since it was charged (3.50V per cell right now). The other night I hauled it up to the garage where the L2 charger is, but it never did anything more than give me a yellow light.

When the bags blew it did set a command to kill the high voltage power so I just picked up a VXDIAG (GDS2) scanner today to reset that alarm but it still isn't giving me power. Will it not truly reset until all the airbag alarms are corrected? It shows on the center console "Power Off" so it isn't even trying to send power, the motor doesn't run with the hood popped either. I'm assuming until all of this is corrected it won't move under it's own power or charge?

Last question, I read on here that when the g-sensor for a airbag gets tripped that it needs to be replaced. The GDS2 doesn't identify any sensors as bad, just the bags and belts that tripped. Is it under a different module or should I just replace the other parts and see if the module will reset then?


Battery Energy Control Module
DTCs reported by different Control Module

High Voltage Disable Requested - Crash Event Detected No

Drive Motor Control Module 1&2
DTCs reported by different Control Module

Thanks,
Jeff
 

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Was the shutoff/disconnect module pulled? It's an orange block located under the floor of the driver's center armrest.
 

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Check main disconnect.

Also, did you do following:
The only way to re-enable the car is to get a hold of GDS2 tool and software and perform following sequence:
a.Clear All DTCs.
b. Go to Hybrid/EV Powertrain Control Module 2, go to “Control Functions” list and Select Clear Secured High Voltage DTCs. You do not get any confirmation that anything is happening, but things are happening.
c. Go to Hybrid/EV Powertrain Control Module, go to “Control Functions” list, Select Clear Secured High Voltage DTCs. Will not get any confirmation – but things are happening.
d. repeat B
e. Clear All DTCs.

Note - things need to be done in sequence, and step #d to to repeat #b.
You should not have any other modules reporting DTCs once properly reset.
 

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Discussion Starter · #4 ·
The MSD was ok, there were some loose parts on the console when I bought it so I definitely looked into that before even buying the scanner.

I did exactly as you said with the GDS2 and it worked with no issues, thanks!! I do still have the drive motor control modules showing a fault from another module but it moves under it's own power. I actually have it up in the garage on a L2 charger right now, nice to see the battery starting to charge after being stored "dead."
 

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Jeff, I'm in the same situation as your Volt was.

I have no sensor error. Did you change any airbag sensor?

I just plan to change airbags, seatbelts and a new control module. I have no sensor error!

Please advise and thank you.

Samuel A.
 

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On my 2017 reprogramming the hybrid control module 2 did the trick. However it did not work the first time, it had to reprogrammed it twice. After the second time the car became fully functional. This was done in SPS with a VCXnano. If you read the manual it says to reset the restraint system module(don't have the manual I'm front of me atm) but I believe it was written for GDS2 because the procedure it describes is not an option on SPS.
 

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Will check into that.

As for now, new Restraint Module is on and programmed. But I did not reconnect the new airbags for the moment so I have some DTC in memory regarding the missing airbags. These code should go away once the new airbags are in place.

Other than that, I have this strange codes P0E65, P0D4F, P0D40 and P0CCF. The Charge port door in not connected so this is why I have the P0CCF. But the other 3 DTC are confusing and the car refuses to MOVE for the moment.
 

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These codes wont prevent the car from moving, it will prevent it from charging. The vehicle thinks at the time the codes were set it was connected to an ac supply.

In service mode, verify in the airbag module that the high voltage disable is not set,

DTC P0E65
The hybrid/EV powertrain control module 2 detects an open, short to ground, or short to voltage on battery charger
control circuit for 1 second.

Conditions for Running the DTC
DTC P0E65
The 12 V battery voltage is greater than 10.2 V.
Vehicle in Service Mode or the drive motor battery charger cable is connected.

Conditions for Setting the DTC
DTC P0E65
The hybrid/EV powertrain control module 2 detects an open, short to ground, or short to voltage on battery charger
control circuit for 1 second.

DTC P0D4F
Battery Charger Hybrid/EV Battery Output Voltage Sensor Circuit High Voltage

Conditions for Running the DTC
The 12 V battery voltage is greater than 10.2 V.
The vehicle is connected to an AC supply and the battery charger is charging the vehicle.

Conditions for Setting the DTC
DTC P0D4F
The battery charger DC output duty cycle is between 92% and 99%.
OR
The battery charger DC output duty cycle equals 0%.

DTC P0D40
Battery Charger Input Voltage Sensor Circuit High Voltage

Conditions for Running the DTC
P0D3F and P0D40
The 12 V battery voltage is greater than 10.2 V.
The vehicle is connected to an AC supply and the battery charger is charging the vehicle.

Conditions for Setting the DTC
DTC P0D40
The battery charger AC input duty cycle is between 92% and 99%.
OR
The battery charger AC input duty cycle equals 0%.

The Clear Secured High Voltage DTCs reset process requires scan tool interaction with two or three different
control modules in sequence and can be completed using the following steps:
1. Install EL-49642 SPS programming support tool.
Vehicle in Service Mode. With a scan tool select the Hybrid/EV Powertrain Control Module 2, Hybrid Battery
Pack Contactor Open Reasons data list. Verify if either the Crash Event Detected or Air Bag Deployed
parameters indicate YES.
If either parameter displays YES
1. Perform the High Voltage System Inspection procedure.
If the results of the inspection procedure support enabling of the high voltage system, perform the
Inflatable Restraint and Sensing Diagnostic Module function Reset High Voltage Disable Request After
Crash Event Detected.
2.
3. Turn the vehicle OFF for 5 minutes.
4. Proceed to next step.
If BOTH parameters indicate NO
2.
3. Vehicle in Service Mode. With a scan tool, clear All DTCs.
NOTE: A command reject may appear on the scan tool after the first Clear Secured
High Voltage DTCs request. If this occurs, ignore this command reject and
continue to the next step.
With a scan tool, select Hybrid/EV Powertrain Control Module 2 Control Functions list. Select Clear Secured
High Voltage DTCs and follow the on-screen instructions waiting 45 seconds before exiting the screen.
4.
With a scan tool, select Hybrid/EV Powertrain Control Module Control Functions list. Select Clear Secured
High Voltage DTCs. Select Continue button waiting 45 seconds before exiting the screen.
With a scan tool, select Hybrid/EV Powertrain Control Module 2 Control Functions list. Select Clear Secured
High Voltage DTCs and follow the on-screen instructions.
6.
7. With a scan tool, clear All DTCs.
Allow the Hybrid/EV powertrain Control Modules to enter sleep mode by performing the following:
1. Turn the vehicle OFF.
2. Ensure the scan tool is not communicating with any control modules by returning to the Home screen.
Ensure the scan tool is accessible without having to open doors or otherwise cause control module wakeup.
3.
Shut all doors. Do NOT depress the brake pedal or activate any vehicle controls such as the parking
lights, fuel door release, etc.
4.
NOTE: Sleep mode is usually entered within two minutes after shutting off the
vehicle. However, activating vehicle features such as Refuel Mode may
extend this time up to 30 minutes.
5. Wait 5 minutes with the vehicle in the prescribed condition so that the modules may enter sleep mode.
8.
With a scan tool, verify the Hybrid/EV Powertrain Control Module 2 has gone to sleep by ensuring
communication is not present.
If communication is present
Repeat the previous step.
If communication is not present
9. If communication is present
Repeat the previous step.
If communication is not present
10. Start the vehicle.
Verify that no DTCs are set.
If any DTCs are set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
If no DTCs are set
11. If any DTCs are set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
If no DTCs are set
12. All OK.
 

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NathanS and all others.

Thank you so much. IT WORKED.

No more codes and it runs. So exited to put this baby on the road.

My first EV. So silent :)
 

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I got the same problem. Bought a 2019 Chevrolet Volt damaged. Now it repaired, shows no DTC’s, but the engine light is on and there is “service vehicle soon” message on display.

It is clear I need to reset the High Voltage DTC’s, but the problem is - the soft is different and in Hybrid/EV Powertrain Control Module 2 there is no such function to reset high voltage dtcs.

Maybe someone has any help for this procedure in 2019 Chevrolet Volt?
 

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Check main disconnect.

Also, did you do following:
The only way to re-enable the car is to get a hold of GDS2 tool and software and perform following sequence:
a.Clear All DTCs.
b. Go to Hybrid/EV Powertrain Control Module 2, go to “Control Functions” list and Select Clear Secured High Voltage DTCs. You do not get any confirmation that anything is happening, but things are happening.
c. Go to Hybrid/EV Powertrain Control Module, go to “Control Functions” list, Select Clear Secured High Voltage DTCs. Will not get any confirmation – but things are happening.
d. repeat B
e. Clear All DTCs.

Note - things need to be done in sequence, and step #d to to repeat #b.
You should not have any other modules reporting DTCs once properly reset.
Thanks this worked for mine. After going through the order I did b again and the engine fired up and everything is working.
 
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