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NEXUS R3 WIRING
Wideband Sensor Input
A wideband O2 sensor can be connected directly to
the NEXUS R3's onboard wideband controller.
A wideband O2 sensor, by definition, measures
a broad section of the Air Fuel Ratio (AFR) scale
which is a useful tool for fuel tuning, closed loop
O2 control, or for engine protection.
multiple wideband O2 sensors by using external
The NEXUS R3 supports onboard wideband control
Haltech CAN wideband controller kits such as the
for Bosch LSU 4.9 or NTK wideband sensors,
Haltech WB1 or Haltech WB2. The diagram below
which can be selected in the wideband O2 sensor
shows an example of a dual wideband sensor
settings in NSP.
connection with one sensor connected directly to
If more than one wideband O2 sensor is required,
the NEXUS R3 and the other through an external
the NEXUS R3 can be further expanded to use
CAN WB controller.
NEXUS R3
CAN 1
CAN 2
Haltech CAN System
The NEXUS R3 includes two channels of CAN:
CAN 1 and CAN 2 - which may be used with a
range of Haltech CAN expansion products, or to
work with a supported vehicle CAN device (eg
factory cluster).
The diagram below shows an example connection
to multiple Haltech CAN devices (sold separately).
Specs
• Supports CAN speeds up to 1 Mbit/s
• Selectable 120ohm termination resistor
per CAN channel
• Supports all Haltech CAN expansion products
• Selectable preconfigured vehicle CAN interface
(OBDII compliant)
CAN
KEYPAD
HUB
NEXUS R3 UNIVERSAL WIRE-IN HARNESS
WB1
TCA8
R3 ONBOARD
HALTECH WB SENSOR KIT
WB CONNECTION
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At Haltech we make every effort to design and manufacture fault-free products
that perform up to or above the market expectations. All our products are covered
by a Limited 12 Month Warranty.
Haltech Limited Warranty
Unless specified otherwise, Haltech warrants its products to be free from defects in material or
workmanship for a period of 12 months from the date of purchase.
If the Haltech product is found to be defective as mentioned above, it will be replaced or repaired
if returned prepaid along with proof of purchase. Proof of purchase in the form of a copy of the
original purchase invoice, receipt or bill of sale which indicates that the product is within the
warranty period, must be presented to obtain warranty service.
Replacement or repair of a defective product shall constitute the sole liability of Haltech. To the
extent permitted by law, the foregoing is exclusive and in lieu of all other warranties or represen-
tations, either expressed or implied, including any implied warranty of merchantability or fitness.
In no event shall Haltech, be liable for special or consequential damages.
Product Returns
iC-7 DASH
Please include a copy of the original purchase invoice, receipt or bill of sale along with the
unused, undamaged product and its original packaging. Any product returned with missing ac-
cessory items or packaging will incur extra charges to return the item to a re-saleable condition.
All product returns must be sent via a freight method with adequate tracking, insurance and proof
of delivery services. Haltech will not be held responsible for product returns lost during transit.
Returns of Products Supplied in Sealed Packaging
The sale of any sensor or accessory supplied in sealed packaging is strictly non-refundable if the
sealed packaging has been opened or tampered with. This will be clearly noted on the product
packaging. If you do not accept these terms please return the sensor in its original unopened
packaging within 30 days for a full refund.
A sensor or accessory product may be returned after 30 days of purchase (with its sealed pack-
aging intact) for credit only (no refunds given) and will be subject to a 10% restocking fee.
WARRANTY CERTIFICATE
Installation of Haltech Products
No responsibility whatsoever is accepted by Haltech for the fitment of Haltech Products. The
onus is clearly on the installer to ensure that both their knowledge and the parts selected are cor-
rect for that particular application. Any damage to parts or consequential damage or costs result-
ing from the incorrect installation of Haltech products are totally the responsibility of the installer.
Always disconnect the battery when doing electrical work on your vehicle. Avoid sparks, open
flames or use of electrical devices near flammable substances. Do not run the engine with a
battery charger connected as this could damage the ECU and other electrical equipment.
Do not overcharge the battery or reverse the polarity of the battery or any charging unit. Discon-
nect the Haltech ECU from the electrical system whenever doing any welding on the vehicle by
unplugging the wiring harness connector from the ECU.
After completing the ECU installation, make sure there is no wiring left un-insulated. Uninsulated
wiring can cause sparks, short circuits and in some cases fire. Before attempting to run the en-
gine ensure there are no leaks in the fuel system.
All fuel system components and wiring should be mounted away from heat sources, shielded
if necessary and well ventilated. Always ensure that you follow workshop safety procedures. If
you're working underneath a jacked-up car, always use safety stands!
_____________________________________________
Haltech Off-Road Usage Policy
In many states it is unlawful to tamper with your vehicle's emissions equipment. Haltech products
are designed and sold for sanctioned off-road/competition non-emissions controlled vehicles
only and may never be used on a public road or highway.
Using Haltech products for street/road use on public roads or highways is prohibited by law un-
less a specific regulatory exemption exists (more information can be found on the SEMA Action
Network website www.semasan.com/emissions for state by state details in the USA).
It is the responsibility of the installer and/or user of this product to ensure compliance with all
applicable local and federal laws and regulations. Please check with your local vehicle authority
before purchasing, using or installing any Haltech product.
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