Electronic Brake Control Module (EBCM) (JM4)

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Electronic Brake Control Module (EBCM) (JM4) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	2 RD/WH	740	Battery Positive Voltage
2	0.5 OG	885	Left Rear Wheel Speed Sensor Low Reference
3	0.5 TN	884	Left Rear Wheel Speed Sensor Signal
4	-	-	Not Used
5	0.5 D-GN	872	Right Front Wheel Speed Sensor Signal
6	0.5 TN	833	Right Front Wheel Speed Sensor Low Reference
7	-	-	Not Used
8	0.5 YE	873	Left Front Wheel Speed Sensor Low Reference
9	0.5 L-BU	830	Left Front Wheel Speed Sensor Signal
10	-	-	Not Used
11	0.5 BN	882	Right Rear Wheel Speed Sensor Signal
12	0.5 WH	883	Right Rear Wheel Speed Sensor Low Reference
13	-	-	Not Used
14	3 RD/BK	542	Battery Positive Voltage
15-19	-	-	Not Used
20	0.35 PK	1439	Ignition 1 Voltage
21	0.35 TN	2501	High Speed GMLAN Serial Data Bus (-)
22	0.35 TN	2501	High Speed GMLAN Serial Data Bus (-)
23	0.35 TN/BK	2500	High Speed GMLAN Serial Data Bus (+)
24	0.35 TN/BK	2500	High Speed GMLAN Serial Data Bus (+)
25	-	-	Not Used
26	3 BK	350	Ground

Connector Part Information

OEM: 13515286
Service: 88988597
Description: 26-Way F Receptacle Sealed (BK)

Terminal Part Information

Pins: 1, 14, 26
Terminal/Tray: 60012931/21
Core/Insulation Crimp: C/1
Release Tool/Test Probe: 12122378/J-35616-4A (PU)

Pins: 2-6, 8, 9, 11, 12, 20-24
Terminal/Tray: 60040451/21
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: 12093647/J-35616-40 (BU)