Transmission Control Module (TCM) (MNF)

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

Courtesy of GENERAL MOTORS CORP.

Transmission Control Module (TCM)

Pin	Wire Color	Circuit No.	Function
1	0.5 YE/RD	1230	Transmission Speed Sensor Signal
2	0.5 YE/BN	401	Low Reference
3	0.5 GN	772	Transmission Position Switch Bit 2 Signal
4	0.5 WH	771	Transmission Position Switch Bit 1 Signal
5	0.5 GN	1078	Ignition Key/Shifter Interlock Solenoid Lock Signal
6-9	-	-	Not Used
10	0.5 GN	2500	High Speed GMLAN Serial Data (+)
11	0.5 GN	2500	High Speed GMLAN Serial Data (+)
12-13	-	-	Not Used
14	0.5 BU/WH	5503	Low Reference
15	0.5 BN/GN	2879	Low Reference
16	0.5 WH/GN	1530	Transmission Mainline Pressure Solenoid Control
17	0.5 WH/BK	1994	TCC PWM Solenoid Valve Control
18	0.5 BK/WH	1527	Shift Solenoid Supply Voltage 3
19	0.5 BK/VT	1526	Shift Solenoid Supply Voltage 2
20	0.5 BK/GN	1525	Shift Solenoid Supply Voltage 1
21	0.75 BK	539	Run/Crank Ignition 1 Voltage
22	0.5 YE/BK	1231	Low Reference
23	0.5 YE/VT	400	Vehicle Speed Sensor Signal
24	0.5 WH/YE	1371	Transmission Position Switch Bit 4 Signal
25	0.5 GY	773	Transmission Position Switch Bit 3 Signal
26-30	-	-	Not Used
31	0.5 WH	2501	High Speed GMLAN Serial Data (-)
32	0.5 WH	2501	High Speed GMLAN Serial Data (-)
33-34	-	-	Not Used
35	0.5 BU/YE	488	Winter Mode Switch Signal
36	-	-	Not Used
37	0.5 BK/BU	585	Transmission Oil Temperature Sensor Signal
38	0.5 BN/BK	586	Low Reference
39	0.5 BN	2150	Ground
40	0.5 BN	2150	Ground
41	0.75 RD	3740	Battery Positive Voltage
42	0.75 BK	539	Run/Crank Ignition 1 Voltage

Connector Part Information  OEM: 1241727-1 Service: See Catalog Description: 42-Way F MQS Series (BK)

Terminal Part Information  Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit