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Hi all.. I need the Pin Outs on the cluster for an 03 chevy Avalanche 5.3L I am changing my cluster to all autometer guages and was wondering what wires I need to tap into from the factory harness to make it all work?
Guages being used..
5" 140 MPH Electric Speedo
3.5" 8K Electric Tach
2 1/16" Fuel Level
2 1/16" Volts
2 5/8" Oil Pressue
2 5/8" Water temp
Warning Lights for:
Oil Pressure
Water temp
High Beam
SES
Brake
Cargo Light
Tow/haul
I was thinking I could just use the factory harness to control all this or am I just kidding myself??
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Here it is, From my ESI Software. :thumb:
Pin
Wire Color
Circuit No.
Function
A1
BRN/WHT
419
MIL Control
A2
--
--
Not Used
A3
BLK/WHT
174
Low Washer Fluid Indicator Supply Voltage
A4
DK GRN/WHT
817
Vehicle Speed Signal
A5
WHT
121
Engine Speed Signal
A6
GRY
1036
IPC Class 2 Serial Data
A7
--
--
Not Used
A8
DK BLU
2115
Right Turn Signal Lamps Supply Voltage
A9
--
--
Not Used
A10
DK GRN/WHT
1932
Transmission Shift Select Switch (Park) Signal
A11
RED
2353
Instrument Panel Lamps Dimming Supply Voltage
A12
BLK
1050
Ground
B1
LT BLU
2114
Left Turn Signal Lamps Supply Voltage
B2-B3
--
--
Not Used
B4
ORN
1816
DIC Mode Switch Signal
B5
DK BLU
894
DIC Toggle Switch Signal
B6
DK GRN/WHT
1358
DIC Switch Signal
B7
YEL
1327
DIC Fuel Signal
B8
--
--
Not Used
B9
PNK
639
Ignition 1 Voltage (w/o 8S8)
PNK
739
Ignition 1 Voltage (w/ 8S8)
B10
--
--
Not Used
B11
ORN
2840
Battery Positive Voltage (w/o 8S8)
ORN
4540
Battery Positive Voltage (w/ 8S8)
B12
BLK/WHT
1851
Ground
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I have no idea on those years but those signals may not work for the autometer gauges, you might have to splice into the signal wires before they go to the PCM. I know on some of them its a different kind of signal that goes to and comes from the PCM.
Just one of those things you might want to check.
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The vast majority of the cluster is controled by class 2 serial data from the pcm and the bcm. most of the gauges are contralled by internal circuts and software inside of the cluster
