KIA Niro: Cell Monitoring Unit (CMU) Terminal And Input/Output Signal
System Configuration

Connector Type

Terminal Function
Cell Monitoring Unit (CMU) #1 (Sub Voltage Battery Pack Assembly)
Connector (B01-A) (16Pin) : High Voltage Battery control


Connector (B01-C) (12Pin) : High Voltage Battery Cell Voltage Check

Cell Monitoring Unit (CMU) #2 (Sub High Voltage Battery Pack Assembly)
Connector (B02-A) (16Pin) : High Voltage Battery control


Connector (B02-B) (8Pin) : High Voltage Temperature

Connector (B02-C) (12Pin) : High Voltage Battery Cell Voltage Check

Cell Monitoring Unit (CMU) #3 (Sub High Voltage Pack Assembly)
Connector (B03-A) (16pin) : High Voltage control

Connector (B03-B) (8Pin) : High Voltage Battery Temperature Check

Connector (B03-C) (12Pin) : High Voltage Battery Cell Voltage Check


Cell Monitoring Unit (CMU) #4 (Sub High Voltage Battery Pack Assembly)
Connector (B04-A) (16Pin) : High Voltage Battery control

Connector (B04-C) (12Pin) : High Voltage Battery Cell Voltage Check


Cell Monitoring Unit (CMU) #5 (Sub High Voltage Battery Pack Assembly)
Connector (B05-A) (16Pin) : High Voltage Battery control

Connector (B05-C) (12Pin) : High Voltage Battery Cell Voltage Check


Cell Monitoring Unit (CMU) #6 (Sub High Voltage Battery Pack Assembly)
Connector (B06-A) (16Pin) : High Voltage Battery control

Connector (B06-B) (8Pin) : High Voltage Battery Temperature Check


Connector (B06-C) (12Pin) : High Voltage Battery Cell Voltage Check

Cell Monitoring Unit (CMU) #7 (Main High Voltage Battery Pack Assembly)
Connector (B07-A) (16Pin) : High Voltage Battery control


Connector (B07-B) (8Pin) : High Voltage Battery Temperature Check

Connector (B07-C) (12Pin) : High Voltage Battery Cell Voltage Check

Cell Monitoring Unit (CMU) #8 (Main High Voltage Battery Pack Assembly)
Connector (B08-A) (16Pin) : High Voltage Battery control


Connector (B08-C) (12Pin) : High Voltage Battery Cell Voltage Check

Cell Monitoring Unit (CMU) #9 (Main High Voltage Battery Pack Assembly)
Connector (B09-A) (16Pin) : High Voltage Battery control


Connector (B09-C) (12Pin) : High Voltage Battery Cell Voltage Check

Cell Monitoring Unit (CMU) #10 (Main High Voltage Battery Pack Assembly)
Connector (B10-A) (16Pin) : High Voltage Battery control


Connector (B10-B) (8Pin) : High Voltage Battery Temperature Check

Connector (B10-C) (12Pin) : High Voltage Battery Cell Voltage Check

Cell Monitoring Unit (CMU) #11 (Main High Voltage Battery Pack Assembly)
Connector (B11-A) (16Pin) : High Voltage Battery control

Connector (B11-B) (8Pin) : High Voltage Battery Temperature Check

Connector (B11-C) (12Pin) : High Voltage Battery Cell Voltage Check


Cell Monitoring Unit (CMU) #12 (Main High Voltage Battery Pack Assembly)
Connector (B12-A) (16Pin) : High Voltage Battery control

Connector (B12-B) (8Pin) : High Voltage Battery Temperature Check


Connector (B12-C) (12Pin) : High Voltage Battery Cell Voltage Check

Battery cell number displayed on KDS










READ NEXT:
Sub High Voltage Battery
Removal
Warning
Be sure to read and follow the "General Safety Information and
Caution" before doing any work
related with the high voltage system. Failure to follow the safety
instructions may result in
serious electrical in
Main High Voltage Battery Temperature Sensor
Removal
Warning
Be sure to read and follow the "General Safety Information and
Caution" before doing any work
related with the high voltage system. Failure to follow the safety
instructions may result in
serious electrical in
SEE MORE:
Main/ Sub High Voltage Battery
Main High Voltage Battery
Power Relay Assembly (PRA)
Cell Monitoring Unit (CMU)
Battery Temperature Sensor
Runaway Arresting Device (RAD)
Warning
Main Relays (Positive, Negative), Pre-Charge Relay, Pre-Charge
Resistor, and Battery
Parking Brake Cable Repair procedures
Removal
Turn ignition switch OFF and disconnect the negative (-) battery
terminal.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad")
Remove the knee air bag.
(Refer to Restraint - "Knee Airbag(KAB) Module&q
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