SSM74274

3/6/2019
TOPIx - SSM74274 - I-Pace High Voltage System - TA Escalation Process
Reference
SSM74274
Models
I-PACE / X590
Title
I-Pace High Voltage System - TA Escalation Process
Category
Driveability
Last modified
12-Feb-2019 00:00:00
Symptom
614000 Lack/Loss of Power
Content
Issue:
Recent visits to retailers to resolve concerns with the High Voltage (HV) Traction Battery have shown a
number of concerns have been identified with the 12V system.
Some functions within the HV Traction Battery can be inhibited if concerns are detected with the 12V
circuit.
The 12V circuit concerns must be addressed before any diagnosis is done with the HV Traction Battery.
Action:
As a result of the retailer visits, the PathFinder Guided Flow procedures for the HV Traction Battery are
being revised. As an interim process to assist with accurate diagnosis, use the procedure below before
raising a Technical Assistance (TA) for HV Traction Battery concerns.
Process:
This SSM is relevant to the Instrument Cluster warning messages listed below:
Battery fault detected
High Voltage system fault detected
High Voltage shut down not possible. System live.
Step 1. Connect PathFinder and check DTCs:
a) If DTC U3000-04 is present in the Battery Energy Control Module (BECM), the 12V system must be
checked first - do Procedure A.
b) If the code U3000-04 is not present in the BECM continue with Step 2
Step 2. Refer to the DTC list in Appendix A:
If any of the DTCS in Appendix A are present in the BECM, do Procedure C, otherwise do Procedure B
Procedure A - Check 12V System
Test 12V system:
1. Put vehicle into 'Sleep mode':
Open bonnet and latch the RH bonnet latch
Close all doors
Lock the vehicle
Wait for vehicle networks to shut down (sleep mode). This is typically 20 minutes and the Hazard
Light Switch illumination will be OFF
2. Test the 12V batteries. Use the procedure 'Determining Battery Condition' in TOPIx Section 414-00A /
Battery Care Requirements / Diagnosis and Testing / Section 4.6.
NOTE: It is recommended to use the Midtronics GRX-3080 battery tester (GR8 - USA and Japan only).
Where the GRX-3080 & GR8 are unavailable, use the EXP-1080.
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TOPIx - SSM74274 - I-Pace High Voltage System - TA Escalation Process
3. When both the 12V batteries have passed, and the 12V system is operating correctly,
continue with Step 2.
Procedure B - Check BECM data and raise TA
Connect PathFinder:
Navigate to ECU Diagnostics > Battery Energy Control Module (BECM) > ECU Functions
Select ‘Display HV Battery Pack Voltage Information’ and run the routine
Exit PathFinder session
Log out of PathFinder
From the desktop, use the 'PathFinder Sessions Extractor' tool and save the session
Create a TA
State SSM 74274 in the Customer Comments field
Select 'EV Electric Vehicle - Warning message displayed' from the symptom list
Attach the saved session .zip file
Describe Primary and Secondary diagnostics completed
Submit the TA
Procedure C - Check BECM and BEM data and raise TA
Connect PathFinder:
Navigate to ECU Diagnostics > Battery Energy Control Module (BECM) > ECU Functions
Select ‘Display HV Battery Pack Voltage Information’
When the routine is complete, select 'Exit'
Select 'Live Data'
Using the search function, select each of the 9 DIDs listed below :
DID 490F – Electric Vehicle Battery Pack Voltage
DID 4900 – Electric Vehicle Traction Contactor Voltage
DID 4901 – Electric Vehicle Auxiliary Contactor Voltage
DID 490D – Electric Vehicle Front Inverter Fuse Voltage
DID 490B – Electric Vehicle Rear Inverter Fuse Voltage
DID 490E – Electric Vehicle Auxiliary Fuse Voltage
DID 491F – Electric Vehicle Traction Contactor Differential Voltage - Measured
DID 491E – Electric Vehicle Auxiliary Contactor Differential Voltage - Measured
DID 4909 – Electric Vehicle Negative Contactor Voltage
Select 'Start Digital'
Press and release the Start/Stop button to turn ignition on and wait for the Live Data readings
Select 'Create PDF'
Press and release the Start/Stop button to turn ignition off
Press the footbrake firmly
Press and release the Start/Stop button to enter 'Ready' mode and wait for the Live Data readings
Select 'Create PDF'
Press and release the Start/Stop button to turn off
Exit PathFinder session
Log out of PathFinder
From the desktop, use the 'PathFinder Sessions Extractor' tool and save the session
Raise a TA
State SSM 74274 in the Customer Comments field
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TOPIx - SSM74274 - I-Pace High Voltage System - TA Escalation Process
Select 'EV Electric Vehicle - Warning message displayed' from the symptom list
Attach the saved session .zip file
Describe Primary and Secondary diagnostics completed
Submit the TA
APPENDIX A
HV Traction Battery DTC List:
P0A0A-xx
High Voltage System Interlock Circuit
P0A1F-xx
Battery Energy Control Module
P0A95-xx
High Voltage Fuse "A"
P0AA0-xx
Hybrid/EV Battery Positive Contactor Circuit
P0AA6-xx
Hybrid/EV Battery Voltage System Isolation Fault
P0ABA-xx
Hybrid/EV Battery Pack Voltage Sense "A" Circuit
P0ABF-xx
Hybrid/EV Battery Pack Current Sensor "A" Circuit
P0ADD-xx
Hybrid/EV Battery Negative Contactor Control Circuit/Open
P0AE1-xx
Hybrid/EV Battery Precharge Contactor Circuit
P0AF8-xx
Hybrid/EV Battery System Voltage
P0B0E-xx
Hybrid/EV Battery Pack Current Sensor "B" Circuit
P0B33-xx
High Voltage Service Disconnect Circuit
P0D34-xx
Hybrid/EV Battery System Current
P0D4C-xx
Battery Charger Hybrid/EV Battery Output Voltage Sensor Circuit
P0E2F-xx
High Voltage Fuse "B"
P0E30-xx
High Voltage Fuse "C"
P3035-xx
Hybrid/EV Battery - Traction Positive Contactor Control Circuit
P3049-xx
Hybrid/EV Battery Charger "A" - High Voltage Supply Circuit
P304A-xx
Power Convertor A - High Voltage Supply Circuit
P304B-xx
Electric Booster Heater (PTC Heater) - High Voltage Supply Circuit
P304C-xx
Electric Air compressor - High Voltage Supply Circuit
P304D-xx
Front Electric Motor Inverter - High Voltage Supply Circuit
P304E-xx
Rear Electric Motor Inverter - High Voltage Supply Circuit
P304F-xx
Hybrid\EV Battery Contactor A
P3050-xx
Hybrid\EV Battery Contactor B
P3051-xx
Hybrid\EV Battery Contactor C
U3000-04
Control Module System Internal Failures
U3000-47
Control Module Watchdog / Safety Microcontroller Failure
U3000-48
Control Module Supervision Software Failure
U3000-56
Control Module Invalid / Incomplete Configuration
Technicians - Please rate this SSM and provide comments so that future communications can be
improved.
1 = Poor – Basic information provided – The SSM does not help me resolve the customer concern.
3 = Average – Adequate information provided – The SSM partially helps me resolve the customer
concern.
5 = Excellent – All required information provided to resolve the customer concern.
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