Audio Amplifier C2 (U57)

WARNING: This page is about a different car, the 2007 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Audio Amplifier C2 (U57) Connector End Views

Courtesy of GENERAL MOTORS CORP.

Audio Amplifier C2 (U57) Connector Parts Information

Connector Part Information

OEM: 12110206
Service: 12110206
Description: 24-Way F Micro-Pack 100 Series (L-BU)

Terminal Part Information

Pins: A4, A5, A8, A9
Terminal/Tray: 12146448/19
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Pins: A2, A3, A6, A7, A10, A11, A12, B8, B9, B10, B11, B12
Terminal/Tray: 12146447/3
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Audio Amplifier C2 (U57) Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	WH	1959	Left Rear Midrange Speaker Output (-)
A3	TN	1859	Left Rear Midrange Speaker Output (+)
A4	TN	1856	Left Front Tweeter Speaker Output (+)
A5	YE	1956	Left Front Tweeter Speaker Output (-)
A6	L-BU	1960	Front Center Speaker Output (-)
A7	YE	1860	Front Center Speaker Output (+)
A8	PU	1952	Right Front Tweeter Speaker Output (-)
A9	L-GN	1852	Right Front Tweeter Speaker Output (+)
A10	TN	1855	Right Rear Midrange Speaker Output (+)
A11	OG	1955	Right Rear Midrange Speaker Output (-)
A12	L-BU/BK	659	Cellular Telephone Voice Low Reference (UE1)
B1-B7	-	-	Not Used
B8	L-GN	1948	Right Low Level Audio Signal (-)
B9	D-GN	1947	Left Low Level Audio Signal (-)
B10	TN	511	Left Low Level Audio Signal (+)
B11	L-GN	512	Right Low Level Audio Signal (+)
B12	D-BU	658	Cellular Telephone Voice Signal (UE1)