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7/12/2017 - DOCUMENT NUMBER: 10-0300
© 2017 AEM Performance Electronics
30-0300 X-Series UEGO Gauge
Connector A - Power / IO
Pin
Color
Description
1
RED
Switched 12V Power (5A Fuse)
2
BLACK
Power Ground
3
GREEN/BLACK
AEMnet- / CANL (Optional)
4
WHITE/BLACK / CANH (Optional)
5
BLUE
Serial / RS-232 Output
(Optional)
6 - 8
-
Not Used
9
WHITE
0-5V Analog Output P
(Optional)
10
BROWN
0-5V Analog Output Negative-
(Optional)
Important Notes on Wiring
·
Route harnesses carefully to avoid chafing or undue strain.
·
Secure wiring to vehicle with wire ties paying special
attention to the sensor harness routing beneath the vehicle
and/or in the engine compartment.
·
Take care when routing sensor harness near hot exhaust
components.
·
Apply strain reliefs and wire coverings as necessary.
·
Use a 5A inline fuse on the switched 12V power supply
line (Pin 1 - Power/IO).
·
Avoid cutting or extending the sensor harness.
·
Use appropriate gauge wire (20 AWG or thicker) when
extending wires, especially Pins 1(Switched 12V) or
2(Ground) of the Power/IO harness.
·
Ensure all connections are secure and insulated from
shorts to adjacent wires and the vehicle structure. Utilize
proper crimping and solder/heatshrink techniques.
·
Replacement pins are JST P/N SPUD-001T-P0.5 terminals
for 22-26 AWG wire
Connector B - Bosch LSU4.9 UEGO Sensor
Pin
Color
Description
1
GREEN
Trim Resistor
2
WHITE
Heater Negative-
3
ORANGE
COM
4
-
Not Used
5
RED
Pump Current
6
BLACK
Sense
7
-
Not Used
8
BROWN
Heater P
