Haltech HT059980 User Manual
Page 10
Harness Pinout
Figure 12 – Haltech CAN Wideband Controller harness connector and pinout
Free Air Calibration
After installation, a free air calibration is required, preferably with the O2 sensor
removed from the exhaust and in free air.
Calibration Procedure:
Turn the free air calibration trimpots on the Haltech CAN Wideband Controller full
counterclockwise.
Turn ignition on and wait for 60 seconds so the system can fully stabilize.
Slowly turn each free air calibration trimpot clockwise until the corresponding LED
starts flashing at a rapid rate.
Set each trimpot at the point where its LED just starts to flash.
If you cannot get an LED to flash when its trimpot is turned full clockwise, you either
have a damaged sensor or very high hydrocarbon levels in your environment.
A fault indication will cause the status LED to blink at a slow rate.
Fault conditions include less than 11 volts or greater than 16.5 volts of battery voltage,
sensor open circuit, and sensor short circuit conditions.
Your Haltech CAN Wideband Controller is now ready to use.
Figure 6 - Haltech WBC1 LED and calibration trim pot location
Figure 7 - Haltech WBC 2 LED and calibration trim pot locations