CAN Bus Wiring on the ECU
The larger Haltech Elite ECU’s (1000, 1500, 2000,2500) have the CAN bus available at 2 different
locations. On the main 26P connector and also on the dedicated CAN connector. You can use either
location. On the 550, 750 and 950, it is only in the main 36P connector.
!!! WARNING !!!
THE HALTECH ECUS AND AEM HAVE BOTH SELECTED SAME CONNECTOR AS THE CAN
NETWORK CONNECTOR BUT DO NOT SHARE THE SAME PINOUT OR THE SAME WIRE
COLORS. DO NOT CONNECT THE AEM DASH HARNESS CONNECTOR DIRECTLY TO THE
HALTECH ECU!
Elite 550, 750, 950 ECU’s
Haltech CAN HI (Pin 16, 34P conn) AEM CAN 2+, (pin 1, silver wire)
Haltech CAN LO (Pin 17, 34P conn) AEM CAN 2-, (pin 2, black wire)
Elite 1000, 1500, 2000, 2500, 2500T ECU’s
Haltech CAN HI (Pin B23, 26P conn) AEM CAN 2+, (pin 1, silver wire)
Haltech CAN LO (Pin B24, 26P conn) AEM CAN 2-, (pin 2, black wire)
The larger Elite ECUs also have a dedicated CAN connector (Aux CAN Port). Be careful with this
pinout if you use this connector as it is the same connector AEM uses for CAN but the pinout is
different!
Follow Haltech instructions to determine if you need a terminating resistor at the ECU.
Open ECU Manager and select; Setup | Main Setup, then under CAN Mode: select “Haltech CAN
(Version 2)