Haltech Wideband 02 Controller Manual - Manual (Page 5)

3. Mounting and Connecting the Wideband Controller
1. Find a suitable location under your vehicle where the Controller body can be mounted. Using
zip ties or other suitable method, fasten the body of the Controller device securely to the frame-
rails or other mounting points as far away from the heat of the exhaust system as the sensor
cable allows. DO NOT zip-tie the HWC by the cables.
2. Route the cables from the HWC (except sensor cable) into the car interior under the dash.
3. HWC Cable connections:
3.1 Out of the HWC comes 3 cables:
A. Interface and power cables with 6 stripped ends:
a. Red
12V supply
b. Blue Heater Ground
c. White System Ground
d. Yellow Analog out 1 (0-1v Output)
e. Brown Analog out 2 (0-5v Output)
f. Green
Analog Ground
g. Black Calibration wire
B. Serial In connection, 2.5mm stereo (female) marked as IN
C. Serial Out connection, 2.5 mm stereo (female) marked as OUT.
4. Connect the 12V supply wire to a switched 12V source in your car. A switched 12V source
goes on as soon as the ignition on the car is on. Make sure the connection is fused with a
fuse of minimum 5A.
5. Connect the Heater Ground wire to a chassis ground. Make sure it has a good ground
connection.
6. Connect the System Ground to where you will use the analog out signals. If you use the
analog out signals as input for an ECU or datalogger, connect the system ground to the
ground of the ECU or datalogger.
7. Optionally connect the analog out signals to their intended devices.
8. Optionally connect a pushbutton switch between ground and the calibration wire.
9. Optionally connect an indication LED between the calibration wire and ground. The following
diagram shows how to connect the pushbutton and indication LED.
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