NHTSA ID Number: 10220363
Manufacturer Communication Number: SM2202
TSB/Document Date: 2022-09-22
Summary
SM2022 EV Maintenance and Service Documentation This Service Memorandum is to announce information on Cummins
Power Electric buses now available at Quickserve Online. Dealer must have access to Quickserve to obtain these service maintenance and repair procedures.
563
8
31
Accelerator Pedal or Lever Position Sensor 2 Circuit Frequency ‐
Abnormal Frequency or Pulse Width or Period
Anti‐Lock Braking (ABS) Active ‐ Condition Exists
Accel Pedal Sensor 2 Freq ‐ Signal Error
4149
4215
Stop (Solid)
91
8
4491
Warning (Solid)
520675
3
4492
Warning (Solid)
520675
4
4497
Warning (Solid)
520677
3
4498
4555
Warning (Solid)
Stop (Solid)
520677
520636
4
31
Accelerator Pedal or Lever Position Sensor 1 Circuit Frequency ‐
Abnormal Frequency or Pulse Width or Period
Power System Cooler Outlet Temperature Sensor Circuit ‐ Voltage
Above Normal or Shorted to High Source
Power System Cooler Outlet Temperature Sensor Circuit ‐ Voltage
Below Normal or Shorted to Low Source
Power System Cooling Fan Drive Output Circuit ‐ Voltage Above Normal
or Shorted to High Source
Power System Cooling Fan Drive Output Circuit ‐ Voltage Below Normal
or Shorted to Low Source
Battery Control Module ‐ Condition Exists
Accel Pedal Sensor 1 Freq ‐ Signal Error
4289
6874
Warning (Solid)
5982
14
SLI Battery Pack Capacity ‐ Special Instructions
6919
Warning (Solid)
91
13
Accelerator Pedal Position 1 ‐ Out of Calibration
7898
Stop (Solid)
9436
13
Propulsion Inverter 1 Control Module ‐ Out of Calibration
7899
Stop (Solid)
9436
9
Propulsion Inverter 1 Control Module ‐ Abnormal Update Rate
7911
Stop (Solid)
9059
11
7912
Stop (Solid)
9067
2
7913
Stop (Solid)
9061
1
Propulsion Motor 1 Temperature ‐ Root Cause Not Known
Propulsion Motor 1 Speed Sensors ‐ Data Erratic, Intermittent, or
Incorrect
Propulsion Motor 1 Torque ‐ Data Valid But Below Normal Operating
Range ‐ Most Severe Level
7914
Stop (Solid)
9059
12
Propulsion Motor 1 Temperature ‐ Bad Intelligent Device or Component
7915
Stop (Solid)
9107
0
7916
Stop (Solid)
9107
12
7917
Stop (Solid)
9115
9
7918
Stop (Solid)
9099
31
7919
Stop (Solid)
9099
6
Motor Inverter Current Out ‐ Cond Exists
Propulsion Motor 1 Inverter AC Current Output ‐ Condition Exists
Propulsion Motor 1 Inverter AC Current Output ‐ Current Above Normal
Motor Inverter AC Current ‐ Above Normal
or Grounded Circuit
7921
Stop (Solid)
9101
0
Propulsion Motor 1 Inverter DC High Voltage Bus Input ‐ Data Valid But Motor Inverter HV Input High ‐ Severe
Above Normal Operating Range ‐ Most Severe Level
7922
Stop (Solid)
9101
1
7923
Stop (Solid)
9436
12
SPN / FMI Cummins Description
SPN / FMI Cummins Description
(for Blue Bird Diagnostic display)
Control Module Calibration Memory
Cruise Control Disable Cmd ‐ Update Rate
Cruise Control Disable Cmd ‐ Cond Exists
Anti‐Lock Braking ‐ Cond Exists
Power Sys Out Temp Sensor ‐ Voltage High
Power Sys Out Temp Sensor ‐ Voltage Low
Power System Cooling Fan ‐ Voltage High
Power System Cooling Fan ‐ Voltage Low
Batt Control Module ‐ Cond Exists
SLI Batt Pack Capacity ‐ Special Notes
Accel Pedal Pos 1 ‐ Out of Calibration
Propulsion Inverter Cntrl ‐ Out of Cal
Propulsion Inverter Cntrl ‐ Update Rate
Motor 1 Temp ‐ Root Cause Not Known
Motor Speed Sensors ‐ Data Quality Error
Motor Torque High ‐ Severe
Motor 1 Temp ‐ Bad Device
Propulsion Motor 1 Inverter Power Module Switch Temperature ‐ Data Motor Inverter Temp High ‐ Severe
Valid But Above Normal Operating Range ‐ Most Severe Level
Propulsion Motor 1 Inverter Power Module Switch Temperature ‐ Bad
Motor 1 Inverter Temp ‐ Bad Device
Intelligent Device or Component
Propulsion Motor 1 Inverter Phase Current Imbalance ‐ Abnormal
Motor Inverter Phase Current Imbalance
Update Rate
Propulsion Motor 1 Inverter DC High Voltage Bus Input ‐ Data Valid But Motor HV Input Low ‐ Severe
Below Normal Operating Range ‐ Most Severe Level
Propulsion Inverter 1 Control Module ‐ Bad Intelligent Device or
Propulsion Inverter Cntrl ‐ Bad Device
Component
Cummins
Fault Code
#
Lamp (Service
Indicator)
J1939
SPN
J1939
FMI
7953
Warning (Solid)
8569
9
7956
Warning (Solid)
8569
3
7961
Warning (Solid)
8585
4
7964
Warning (Solid)
8586
2
7966
Warning (Solid)
8587
3
7967
Warning (Solid)
8588
6
7969
Warning (Solid)
8592
0
7972
Warning (Solid)
8820
3
7976
Warning (Solid)
8895
9
7979
Warning (Solid)
8895
3
7983
Warning (Solid)
8911
4
7986
Warning (Solid)
8912
2
7988
Warning (Solid)
8913
3
7989
Warning (Solid)
8914
6
7992
Warning (Solid)
8918
3
7995
Warning (Solid)
8936
0
8154
8156
None
None
521209
521209
12
9
8161
Warning (Solid)
8587
1
8162
Warning (Solid)
8913
1
Connectivity Module ‐ Bad Intelligent Device or Component
Connectivity Module ‐ Abnormal Update Rate
DC/DC 1 High Side Voltage ‐ Data Valid But Below Normal Operating
Range ‐ Most Severe Level
DC/DC 2 High Side Voltage ‐ Data Valid But Below Normal Operating
Range ‐ Most Severe Level
8173
Stop (Solid)
8098
3
HVESS HVIL Status ‐ Voltage Above Normal or Shorted to High Source
8174
8175
Stop (Solid)
Stop (Solid)
8098
8098
4
31
HVESS HVIL Status ‐ Voltage Below Normal or Shorted to Low Source
HVESS HVIL Status ‐ Condition Exists
8176
Stop (Solid)
8098
11
8212
None
521217
3
8231
Stop (Solid)
9101
3
8232
Stop (Solid)
9101
4
8267
Warning (Solid)
521235
3
8268
8329
Warning (Solid)
Warning (Solid)
521235
5113
4
9
HVESS HVIL Status ‐ Root Cause Not Known
Connectivity Module Cellular External Antenna ‐ Voltage Above Normal
or Shorted to High Source
Propulsion Motor 1 Inverter DC High Voltage Bus Input ‐ Voltage Above
Normal or Shorted to High Source
Propulsion Motor 1 Inverter DC High Voltage Bus Input ‐ Voltage Below
Normal or Shorted to Low Source
Battery TMS Coolant Inlet Temperature Sensor ‐ Voltage Above Normal
or Shorted to High Source
Battery TMS Coolant Inlet Temperature Sensor ‐ Voltage Below Normal
or Shorted to Low Source
Charge Control Unit 1 Time Out ‐ Abnormal Update Rate
SPN / FMI Cummins Description
SPN / FMI Cummins Description
(for Blue Bird Diagnostic display)
DC/DC 1 Operational Status ‐ Update Rate
DC/DC 1 Operational Status ‐ Abnormal Update Rate
DC/DC 1 Operational Status ‐ Voltage Above Normal or Shorted to High
DC/DC 1 Operation Status ‐ Voltage High
Source
DC/DC 1 Low Side Voltage ‐ Voltage Below Normal or Shorted to Low
DC/DC 1 Low Side Voltage ‐ Voltage Low
Source
DC/DC 1 Low Side Current ‐ Data Erratic, Intermittent, or Incorrect
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TSB/Document ID: SM2202
Replacement Service Bulletin Number:
MFR Communication Date: 2022-09-02
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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