AEM 30-2310 Inline Wideband UEGO Controller - Manual (Page 3)

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Figure 3. Inline Wideband UEGO Controller Mounting
Indicator Lights
The Inline Wideband UEGO Controller has two indicator lights, see Figure 4. Both the
ready light and the status light flash during sensor warm up. Once the sensor reaches
operating temperature, usually within 30 seconds, the status light will turn off and the
ready light will remain on solid. During sensor warm up, AFR readings may not be
accurate. The status light will also flash if a sensor error is detected. The status light
will flash on and off a number of times, followed by a short pause. The error codes are
listed below in Table 1.
Status Indicator
Light
Figure 4. Indicator Lights
Ready Indicator
Light
# of Flashes Fault Corrective Action
1-6 Sensor Wiring and/or sensor Check sensor cable for
broken wires/shorts
7 System voltage below 10 volts dc Check electrical system
for good connections
and proper function
Table 1. Error Codes