Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool
I	13584547	J-35616-64B (L-BU)	J-38125-215A

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	0.35 0.35	RD / GN RD / GN	742 742	Battery Positive Voltage Battery Positive Voltage	I I	((C67) /(CJ2+(UE1)) -KEM CJ2-(UE1/UI3)
2	0.35	GN	5060	Low Speed GMLAN Serial Data	I	-
3	0.35	GN	5060	Low Speed GMLAN Serial Data	I	-
4	0.35	GN / YE	7531	HVAC Control Module LIN Bus 1	I	-
5	-	-	-	Not Occupied	-	-
6	0.35 0.35	GN / BU GN / BU	4119 4119	HVAC Control Module LIN Bus 2 HVAC Control Module LIN Bus 2	I I	ASV+UEU ASV-UEU
7	-	-	-	Not Occupied	-	-
8	0.35	BK	1650	Ground	I	-
9	0.35	VT / GN	39	Run/Crank Ignition 1 Voltage	I	-
10	0.35	BU / YE	7574	Air Conditioning Compressor Solenoid Valve Control	I	-
11	0.35	BU / BN	7573	Air Conditioning Compressor Solenoid Valve Control	I	-
12 - 14	-	-	-	Not Occupied	-	-
15	0.5	BU / GY	754	Blower Motor Speed Control	I	-
16 - 17	-	-	-	Not Occupied	-	-
18	0.35	BK / GN	7567	Solar Sensor Low Reference	I	CJ2+(UE1/C67)
19	0.35	BN / VT	193	Rear Defogger Relay Control	I	-
20	-	-	-	Not Occupied	-	-

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

K33 HVAC Control Module X2