4
5
1 Power LED
2 DTC LED
3 Wi-Fi LED
4 Datalog LED
5 25A HCO LEDs
6 Battery Negative Stud
7 Battery Positive Stud
8 Wi-Fi Antenna (RP-SMA)
9 Onboard MAP sensor (4 BAR)
10 USB-C Port (Comms)
11 Connector A (AMP 34 pin Keyway 1)
12 Connector C (AMP 34 pin Keyway 2)
13 Connector E (DTP 4 pin)
14 Mounting Holes
8
1 2 3 4
5
6
7
14
14
10
9
11
12
13
NEXUS R3 OVERVIEW
NEXUS R3 LED BEHAVIOUR
LED
COLOUR
CONDITION
Power
Green
Normal operation (on main power or low power mode)
Blue
Connect to unit and install firmware
Red
Hardware fault
DTC
None
DTCs not present
Yellow
A DTC is present (of any kind, past/present/not severe/severe)
WiFi
None
Wi-Fi is disabled
Green solid
Wi-Fi is enabled
Green flashing
Wi-Fi is enabled and connected to NSP
Datalog
None
Unit is not logging
Yellow flashing
Unit is logging, unit is not looping or not full
Yellow
Unit is logging, unit is looping or full
HCO (25A)
None
Channel is off
Green
Channel is on - duty cycle is >0% and operating correctly
Red
Channel is not allowed to be driven. Usually caused by (but not limited to)
an overcurrent this drive cycle
