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NEXUS R5 WIRING
Wideband Sensor Inputs
Up to Two Wideband O2 sensors can be connected
directly to the NEXUS R5 for monitoring purposes,
or for closed loop O2 control.
A wideband sensor, by definition, measures a
broad section of the Air Fuel Ratio (AFR) scale.
The NEXUS R5 provides on-board individually
selectable support for Bosch LSU 4.9 or NTK
wideband sensors, using the sensors' calibration
resistor.
The chosen wideband sensor can be selected in
(including the desired sensor, wiring harness and
the wideband O2 sensor settings in NSP.
bung) can be purchased separately.
Wideband harnesses, sensors and hardware packs
LSU4.9 OR
NTK
HT-010723
HT-010726 LSU 4.9
HT-010727 NTK
CAN Bus
The NEXUS R5 includes three separate CAN buses.
If using the Haltech CAN bus, see the wiring
information on your selected CAN device to ensure
the CAN bus is correctly configured.
Specs
• 1000, 500 or 250 kbit/s
• Per channel selectable 120R termination
• -40 to 40V short protection
• Supports all Haltech expansion products
• Selectable preconfigured vehicle CAN interface
• OBD-II compliant
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WARRANTY CERTIFICATE
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
representations, 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
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 un-
opened 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 in tact) for credit only (no refunds given) and will be subject to a 10% restocking fee.
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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