Genie Z-80/60 Service And Repair Manual page 167

September 2016
GM Fault Code Chart
Description
DTC 2618: Tach output ground short
DTC 2619: Tach output short to power
DTC 8901: UEGO microprocessor internal fault
DTC 8902: UEGO heater supply high voltage
DTC 8903: UEGO heater supply low voltage
DTC 8904: UEGO cal resistor voltage high
DTC 8905: UEGO cal resistor voltage low
DTC 8906: UEGO return voltage shorted high
DTC 8907: UEGO return voltage shorted low
DTC 8908: UEGO pump voltage shorted high
Part No. 1268556
GM 3.0L Engine Fault Codes
DTC Set 2
SPN-2 / FMI-2
645 / 4 DTC 8909: UEGO pump voltage shorted low
645 / 3 DTC 8910: UEGO sense cell voltage high
3221 / 1 DTC 8911: UEGO sense cell voltage low
3222 / 3 DTC 8912: UEGO pump voltage at high drive limi
3222 / 4 DTC 8913: UEGO pump voltage at low drive limit
3221 / 3 DTC 8914: UEGO sense cell slow to warm up
3221 / 4 DTC 8915: UEGO pump cell slow to warm up
3056 / 3 DTC 8916: UEGO sense cell impedance high
3056 / 4 DTC 8917: UEGO pump cell impedance high
3218 / 3 DTC 8918: UEGO pump cell impedance low
Service and Repair Manual
Description
DTC Set 2
SPN-2 / FMI-2
3218 / 3
3218 / 3
3218 / 4
3217 / 3
3217 / 3
3225 / 4
3222 / 4
3225 / 10
3225 / 0
3225 / 1
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