HVAC Control Module X2 (C67, C42 or MEX)

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Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Harness Type: Instrument Panel
OEM Connector: 15483873
Service Connector: 21997402
Description: 16-Way F USCAR 64 Series (BU)

Terminal Part Information

Terminated Lead: 13575867
Release Tool: J-38125-215A
Diagnostic Test Probe: J-35616-64B (L-BU)
Terminal/Tray: SAIT-A03T-M064/14
Core/Insulation Crimp: P/P

HVAC Control Module X2 (C67, C42 or MEX)

Pin	Wire	Circuit	Function
1	0.35 YE	6817	LED Backlight Dimming Control
2	0.35 OG	300	Ignition 3 Voltage
3	0.5 BK/WH	1851	Ground
4	0.35 RD/WH	3340	Battery Positive Voltage
5	0.35 D-GN	5060	Low Speed GMLAN Serial Data
6	0.35 D-BU	204	A/C Low Pressure Sensor Signal (C67 or MEX without C42)
7	-	-	Not Used
8	0.35 WH	193	Rear Defog Relay Control (C49)
9	0.35 L-GN/BK	735	Ambient Air Temperature Sensor Signal (C67)
10	0.5 BK	1050	Ground
11	-	-	Not Used
12	0.35 D-GN	6101	Low reference (C67)
13-14	-	-	Not Used
15	0.35 L-GN	1478	Coolant Level Switch Signal (Diesel)
16	-	-	Not Used