Transmission Control Module (TCM) B Connector (MLQ)

Fig 1: Transmission Control Module (TCM) B Connector End View (MLQ)

Courtesy of GENERAL MOTORS CORP.

Transmission Control Module (TCM) B Connector Terminal Identification (MLQ)

Pin	Wire	Circuit	Function
1	0.5 D-GN/WH	2383	Park Neutral Position (PNP) Switch Reverse Signal
1	0.5 D-GN/WH	24	Backup Lamp Supply Voltage
2	-	-	Not Used
3	0.5 YE	1481	Hold Mode Indicator Control
4	0.5 D-GN/WH	1135	Auto Shift Lock Solenoid Supply Voltage
5	-	-	Not Used
6	0.5 D-BU/WH	1296	Input Shaft Speed (ISS) Sensor High Signal
7	0.5 WH	2377	Park Neutral Position (PNP) Switch Drive Signal
8	0.5 YE	2381	Park Neutral Position (PNP) Switch Neutral Signal
9-15	-	-	Not Used
16	0.5 YE/BK	1297	Input Shaft Speed (ISS) Sensor Low Signal
17	-	-	Not Used
18	0.5 GY	2380	Park Neutral Position (PNP) Switch Low Gear Signal
19	0.5 PK	2384	Park Neutral Position (PNP) Switch 2nd Gear Signal
20	0.5 D-GN	2382	Park Neutral Position (PNP) Switch Park Signal
21	-	-	Not Used
22	0.5 L-BU	20	Stop Lamp Switch Signal
23	0.5 D-BU	2000	Serial Data
24	-	-	Not Used
25	0.5 D-GN/WH	817	Vehicle Speed Signal
26	-	-	Not Used

Connector Part Information