HVAC Control Module B (C68)

Fig 1: HVAC Control Module B Connector End View

Courtesy of GENERAL MOTORS CORP.

HVAC Control Module B Connector Terminal Identification (C68)

Pin	Wire	Circuit	Function
B1	0.3 GY/BK	754	Blower Motor Speed Signal
B2	0.5 D-GN/RD	817	Vehicle Speed Signal
B3	-	-	Not Used
B4	0.3 BN	1812	Low Reference
B5	0.3 YE/BK	1814	Lower Mode Door Position Signal
B6	0.3 BK	1199	Air Temperature Door Control
B7	0.5 D-GN	95	Windshield Washer Switch Signal
B8	0.5 L-GN/BK	735	Ambient Air Temperature Sensor Signal
B9	0.5 GY/BK	1596	Coolant Temperature Sensor Signal
B10	0.5 L-BU/BK	590	Sunload Sensor Signal
B11	0.5 BK	350	Ground
B12	1.25 D-BU	188	Blower Motor Resistor Assembly Supply Voltage
B13	0.3 PK/WH	1648	Recirculation Door Control A
B14	0.3 D-GN/BK	1647	Recirculation Door Control B
B15	-	-	Not Used
B16	0.3 D-GN/BK	1395	Upper Mode Valve Solenoid Control
B17	0.3 PK	1396	Defrost Mode Valve Solenoid Control
B18	0.3 YE/BU	1397	Lower Mode Valve Solenoid Control
B19	0.3 WH/BK	1398	Mode Valve Signal
B20	PK/BK	1399	Mode Valve Signal

Connector Part Information