TECHNICAL SERVICE BULLETIN
Subject

ZX5.A02 BuSCoM 2.0 Software Release

Issue Date

7/15/2024

Service Bulletin Number

SC-24-014

Models Affected

Service Specified Vehicles

Complete By

Next Service Opportunity

Labor Operation Code

PD54Z

Description

Release to support bugs and enhancements for the ZX5.A02 fleet. The
following ECUs will be updated throughout the procedure Dash (v5.3.0),
Vehicle Controller (v3.13.08), Body Controller (v2.2.2), and Prodrive 2.0
(v6.1.0).

Labor Table
Operation
1

Steps 1-66

Technicians

Hours

Labor Time (T x H)

1

1.25

1.25 Hours

Total Labor Time:

1.25 Hours

Contact the PhoenixEV Customer Service Team with any questions related to the following procedure.
864-243-7572
[email protected]
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Parts Required:
188-7103 Top Level Kit Description

Qty.

UOM

066144
066145

SOFTWARE, DASH, MVP, v5.3.0
SOFTWARE, VEHICLE CONTROLLER, v3.13.08

EA
EA

066281

SOFTWARE, BODY CONTROLLER 800V ZR5, v2.2.2
SOFTWARE, POWERTRAIN, 800V, PHOENIX, REMINGTON, V6.1.0

EA

066482

EA
EA
EA
Qty.

UOM

Tools Required:
•

Laptop

•

Phoenix Diagnostic Tool (PDT)

•

Nesiq Usb Link 2.0

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Overview:

This is document contains the necessary information and instructions to successfully program the
vehicles ECUs for vehicle bugs and enhancements.

Added Features/Resolved Issues
BTMS System thermal efficiency and optimization
- John Deere CalPro BTMS Efficiency changes to optimize battery performance across different
operating temperatures
Port B SW version Number on VCAN
- Port B SW version will be available on VCAN to support PDT and Valence tools.
Charge Controller CCID Communication for VIC and Port B
- Restoring broadcast of CCID to re-enable remote tool monitoring functions.
Metric Dash
- Change to common units for all Metric customers based on field feedback.
Vapor Door Switch Button Support
- Software to support Vapor Doors with integrated ramp and ride height switch buttons
Remington door obstruction response
Change in the Remington door obstruction response to match the function in current Roadrunner
fleet.
VIC HVIL Faulted Shutdown improvement
Increased VIC robustness to closing contactor under load condition on startup after faulted
shutdown
Compressor Diagnostic Robustness improvements
SPN 1351 FMI 7 false failure fix
Power steering Diagnostic Robustness improvements
- SPN 520855 FMI 7 Power steering compressor RPM target and diagnostic maturity time change to
prevent false failure during normal operation

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HV Diagnostic Robustness improvements

- BMS waking cyclically under corner case Port B charging scenario fix, shunt voltage diagnostic
fixes
Vapor Door Sensitive Edge Improvements
- Fixes bug preventing correct operation of drag detection and sensitive edge.
Rooftop Pack flow improvement
- For buses equipped with Valeo HVAC increased flow through rooftop packs
- Requires hardware update on Valeo buses before implementation
- No changes for non-Valeo
Interlock Fault Robustness Improvements
- Changes to prevent false failure of interlock diagnostics causing red fault lamp
- SPN 520821 FMI 1
- SPN 520822 FMI 1
Critical Battery Fault Improvements
- ESM monitors moisture and isolation signals from BMS to detect critical battery faults.

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Prerequisites:

The vehicle must have the previous software campaign complete SC-23-109, specifically the LVD
contactor must set to its new parameters and shutdown override switch to be a momentary switch. If
the vehicle does not have a WO signed off please verify the shutdown override switch is momentary
before proceeding.
Additionally if the vehicle is assigned SC-23-128 - 35' Valeo Pack 7 Temperature Imbalance Retrofit,
this retrofit must be completed prior to performing this campaign. Please check ServiceMax to verify
if the VIN is assigned this bulletin and completion status.
For best results during this flashing procedure, have the LV batteries fully charged, if the batteries
cannot sustain the bus to be in low voltage for 30 minutes at a time it is required to have an external
battery bank to support the bus during the flashing procedure.

The same applies to your laptop, must be fully charged and able to hold power continuously through
the flashing procedure.
Have all software files stored on the local hardrive of the laptop. Using a file that is located on the
cloud can cause undesirables results.
If PCM is not equal to or greater than 5.0.0 the software update cannot be completed at this time
due Phoenix Diagnostic Tool not being able to modify the EEPROMs that come with the new software.
Following the link below, please have the Manufacturing Diag Tool Installed on your laptop to update
a new VIC parameter.
https://diag.phoenixmotorcars.com/mdt/
If all these conditions are not met for this procedure you run the risk of bricking a controller resulting
in unexpected downtown time.
https://business-site-7460.my.salesforce.com/sfc/p/Ho000002fy70/a/Ho000000CRjZ/
R02xgt9p.IjSv2fOTdgb_gVkhS.bDfUU9LvTajQqC6Q
Password: FFKCehOH
VEHICLE SOFTWARE UPDATE PROCEDURE
Step 1:
Turn ON the 12/24V rear Vehicle Master Disconnect located at the curbside rear charge port access
panel and the LV Battery Saver Switch near the LV batteries.

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Step 2:

Connect the Nexiq USB Link2 device to the laptop and to the OBDII Diagnostic Port located in the
rear deck above the rear window.

Step 3:
Make sure the Master Switch is in the “OFF” position and the Hazard Switch is “ON”.
Note– Other Systems may cause the hazard lights to be on. Ensure the hazard swich is on for flashing purposes.

Step 4:

On the laptop, double-click on the Phoenix Diagnostics Tool software icon to start the software.

Step 5:
When the program opens, read and click “OK” for the high-voltage safety prompt

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Step 6:

On the Home tab, select the appropriate device from the drop down and click “Connect”

Step 7:
Once the diagnostic tool has connected to the vehicle, a VIN number and connection status will be
displayed on the Home screen, and tabs available to navigate. If you do not see the Home Screen,
check that the low-voltage batteries are connected and that the Nexiq tool is plugged in. If there are
still errors, try restarting the Phoenix Diagnostic Tool application.
NOTE: 800V Proterra vehicles are equipped with an automatic battery disconnect that will protect
the low-voltage batteries from a deep discharge.
Step 8:
Before beginning the programming process, check the bus for existing faults by clicking on the
“Diagnostics” button below and make a note of any found.
Step 9:
Click on the “Overhead Charging” button on the left side of the screen.
NOTE: If the bus that you are working on is not capable of overhead charging, skip the next step.

Click “Overhead
Charging”

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Step 10:

Record the value displayed in the “Vehicle Tag” data field. This will be re-entered into the controller
after the software update.

Record Vehicle Tag

Step 11:
Navigate to the “VIC CONFIG” tab in the left menu.

Step 12:
Select the option for Vehicle Controller “START FLASH”. There will be a status pop-up to confirm
that the Master Switch is OFF, and the Hazard Switch is ON.

NOTICE: The “INITIAL FLASH” button is only for offline programming of the Vehicle Controller with
an Offline Programming Kit.

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Step 13:

After pressing OK, it will prompt you to press the “START FLASH” button again. BEFORE YOU DO
THAT, press the “GET VALUES” button to get the current controller configuration values. Save
these values in case the automatic restore does not work.

Step 14:
Now, press the “START FLASH” button once more and a pop-up window should appear. In the popup window, select the software flash file to load the controller. The correct file is named
“VIC_Remington_v3_13_08.hex”.

Select the file and
Click Open

Step 15:
The Programming window will come up and will take a few minutes to complete.

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Step 16:

Click on the “Overhead Charging” button on the left side of the screen.
NOTE: If the bus that you are working on is not capable of overhead charging, skip the next step.
Step 17:
The following screen will appear. Enter the “Vehicle Tag” that you recorded previously into the field
circled in red below. Click the button under the field. This will populate the “Vehicle Tag” into the field
above and into the controller.

Click “Button”

Step 18:
On the VIC tab select “Get” Values and update EEPROM “Emperor Fast Charge” to 0 using. If the
PDT will not display value please download the MDT and update value using that tool.

Step 19:
Turn the Hazard Switch OFF, Turn OFF the Master Switch. Turn off the Master Disconnect and battery saver switch.
Close the PDT.
ProDrive 2.0 POWERTRAIN SOFTWARE UPDATE PROCEDURE
Step 20:

Turn ON the 12/24V rear Vehicle Master Disconnect located at the curbside rear charge port access
panel and the LV Battery Saver Switch near the LV batteries.

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Step 21:

Turn the Master Switch to the “DAY RUN” position and turn the Hazard Switch ON and record the
Odometer Value.
NOTE – DO NOT PRESS THE START PB. THIS WILL ENGAGE HV.
NOTE – Other systems may cause the hazard lights to be on. Ensure the Hazard Switch is on for
flashing purposes

Step 22:
Access the Rear Deck above the rear window and remove the protective cap.

Step 23:
Connect to the vehicle using the Nexiq USB Link2 and PDT similarly to the steps above in the Vehicle controller flashing procedure.

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Step 24:

On the laptop, double-click on the Phoenix Diagnostics Tool software icon to start the software.

Step 25:
When the program opens, read and click “OK” for the prompt
Step 26:
On the Home tab, select the appropriate device from the drop down and click “Connect”.

Step 27:
Once the diagnostic tool has connected to the vehicle, a VIN number and connection status will appear on the Home screen, along with selectable tabs to navigate

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Step 28:

Ensure you have the latest software file “066482.hex“ on the computer's hard drive.
Step 29:
Click on the “Powertrain Config” tab on the left-hand side of the screen.

Step 30:
On the Powertrain Configurations tab, Click on “Get Values”.
Step 31:
After clicking on Get Values, note down the values set for Forward Speed limit, Backward Speed
Limit, Tire Size, Performance Mode, RNDL Configuration, Yard Speed Limit, and Odometer for future reference.

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Step 32:

Click the Powertrain Firmware “Start Flash” button.

Step 33:
The following screen will be displayed. Navigate to the location where you stored the configuration
file earlier. Select the software file downloaded previously and click “Open” to load the file.

Select File
Click “Open”

Step 34:
The Phoenix Diagnostic Tool will attempt to connect to the device.

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Step 35:

When the software update begins, the following screens will be displayed.

Step 36:
The software update may take several minutes to complete. When the update is complete the following will be displayed. Click the “OK” button to complete the update process.

Step 37:
Disconnect the diagnostic tool and turn the Master Switch to OFF, the Hazard Switch OFF, and then
turn the Master Switch back to DAY RUN and the Hazard Switch back ON.
Step 38:
Reconnect the Phoenix Diagnostic Tool.
Step 39:
Check the odometer value displayed on the dash, if it doesn’t match the recorded value, then proceed to the next step. If it does match the recorded value then proceed to the configuration step.
Step 40:
Navigate to the Powertrain tab and type the recorded odometer value in the Odometer value field,
then click “Set odometer value.”

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