Electronic Brake Control Module (EBCM) (JM4)

WARNING: This page is about a different car, the 2008 Chevrolet HHR. 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	0.8 OG	885	Left Rear Wheel Speed Sensor Low Reference
3	0.8 TN	884	Left Rear Wheel Speed Sensor Signal
4	0.35 L-BU	20	Stop Lamp Supply Voltage
5	0.8 D-GN	872	Right Front Wheel Speed Sensor Signal
6	0.8 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	0.5 PK	1439	Ignition 1 Voltage
21	0.35 TN	2501	High Speed GMLAN Serial Data (-)
22	0.35 TN	2501	High Speed GMLAN Serial Data (-)
23	0.35 TN/BK	2500	High Speed GMLAN Serial Data (+)
24	0.35 TN/BK	2500	High Speed GMLAN Serial Data (+)
25	-	-	Not Used
26	3.0 BK	350	Ground

Connector Part Information

OEM: C-1452643
Service: 88988362
Description: 26-Way F (BK)

Terminal Part Information

Pins: 1
Terminal/Tray: 2-927835-2/7
Core/Insulation Crimp: A/3
Release Tool/Test Probe: 12093647/J-35616-40 (BU)

Pins: 2-6, 8, 9, 11, 12, 20-24
Terminal/Tray: 4-969005-1/16
Core/Insulation Crimp: E/1
Release Tool/Test Probe: J-38125-560/J-35616-33 (YE)

Pins: 14, 26
Terminal/Tray: 2-968037-4/7
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: 12093647/J-35616-40 (BU)