8403.GM4 4.21 2007 Chevrolet Silverado Classic
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Vehicle connections
The connection information listed below is specific to the 2007 Chevrolet Silverado Classic. Refer to “Pre-installation and application warnings” for a list of important notes.
Data 14-pin blue connector (H1)
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
H1/1 Light Green No Connection No Connection
H1/2 Violet/Yellow (DATA) J1850 OBD-data link connector, black 16 pin plug, pin 2 data violet
H1/3 Tan/Black No Connection No Connection
H1/4 Tan No Connection No Connection
H1/5 Orange/Green No Connection No Connection
H1/6 Orange/Brown No Connection No Connection
H1/7 Brown Relay N.O. - No Connection No Connection
H1/8 Yellow Relay COM - No Connection No Connection
H1/9 Orange/Yellow Relay N.C. - No Connection No Connection
H1/10 Orange/Red Relay N.C. - No Connection No Connection
H1/11 Yellow/Red Relay COM - No Connection No Connection
H1/12 Brown/Red Relay N.O. - No Connection No Connection
H1/13 Red (+) W2W Only - 12 Volt ignition switch, black 7 pin plug, pin F + red (40A)
H1/14 Black (-) W2W Only - Ground (chassis ground)
Output 12-pin red connector (H2)
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
H2/1 Black/White No Connection No Connection
H2/2 Green/Black No Connection No Connection
H2/3 Green/White (-) W2W Only - Door Output Remote Starter
H2/4 Red/Black (-) W2W Only - Trunk Output Remote Starter
H2/5 Violet/White (AC) W2W Only - Tach Output [2] Remote Starter
H2/6 Gray No Connection No Connection
H2/7 Gray/Black No Connection No Connection
H2/8 Violet/Green No Connection No Connection
H2/9 Violet/Brown No Connection No Connection
H2/10 Yellow/Black No Connection No Connection
H2/11 Orange/Black No Connection No Connection
H2/12 Blue/Red No Connection No Connection
Input 10-pin black connector (H3)
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
