4 ABS VALVES - ABS KITS HALDEX ABS KITS - (Antilock Braking System) ABS VALVES - ABS KITS The AQ960503 Universal PLC Select ABS Kit will replace all competitive brands and generations of trailer 2S/1M (2 Sensor - One Modulator Valve) ABS systems.  These are any systems that utilize a single ABS valve, two sensors, and a separate spring brake control valve.  Some additional components unique to the vehicle being upgraded should be expected.  Do not use this kit to replace the Haldex FFABS ABS System as this is a single valve per vehicle and spring brake control is integral to the FFABS valve. 4S/2M Kit Part No.  AQ961605 PARTS LIST  Consisting of: Qty Part No. Description 1 AL919311 ECU 1 AL430624 Full Function ABS Valve 2 AL919802 4.5' Sensor Cable Ext. 2 AL919804 7.5' Sensor Cable Ext. 1 AL919901 12' Power Cord Ext. 1 AL364040 Modulator Valve 1 AL40900 Loom Assembly   1 box       - Tie Down Clips 2S/1M Kit   Part No.  AQ961404 PARTS LIST   Consisting of: Qty Part No. Description 1 AL919310 ECU 1 AL430624 Full Function ABS Valve 2 AL919804 7.5' Sensor Cable Ext 1 AL919901 12' Power Cord Ext   1 box         - Tie Down Clips 2S/1M Kit Part No.  AQ960503 PARTS LIST   Consisting of: Qty Description 1 PLC Select Valve ECU Assy. 6 Port 1 6 Foot Power Cord Ext. 2 18 Inch Sensor Extensions 1 Installation Instructions L31203 1 PLC Service Manual L30030 ARVIN MERITOR ABS KITS - (Antilock Braking System) Differences Between Easy-Stop and Enhanced Easy-Stop 2S/2M, 4S/2M and 4S/3M • Enhanced Easy-Stop includes Power Line Communication (PLC) function. • The ECU/dual modulator valve assembly must be mounted as one unit. • The LED on top of the ECU has been eliminated. • Blink Code Diagnostics through external or ABS indicator lamp. Differences Between Easy-Stop and Enhanced Easy-Stop 2S/1M Basic • Enhanced Easy-Stop includes Power Line Communication (PLC) function. • The ECU/single modulator valve assembly may be mounted as one unit or the ECU and the valve may be mounted or serviced separately. • The assembly is shipped with valve cable between the ECU and valve disconnected from the ECU. • The LED on top of the ECU has been eliminated. • Blink Code Diagnostics through external or ABS indicator lamp. • The control port on the Enhanced Easy-Stop single modulator valve is 3/8-inch — on previous versions it was 1/4-inch. R955320 4S/2M ; 2S/2M ECU plus old style/new style power cord adapter--no diagnostic cable. R955321 4S/2M ; 2S/2M ECU plus old style/new style power cord adapter--with diagnostic "Y" cable. R955344 2S/1M ECU plus old style/new style power cord adapter with power line adapter for trailer applications. R955322 ECU/Modulator Valve Assembly, 2S/1M.  DOLLY USE, and Steerable axle ONLY PART NUMBER DESCRIPTION S4005001010 2S/1M ECU/Modulator valve assy. S4005001030 4S/2M ECU/Modulator valve assy. S4493260100 3.3 ' Power Cable S4493260300 10' Power Cable S4493641500 13.1' / 9.8' Power "Y" Cable S4493641530 20' / 10'  Power "Y" Cable Common ABS Components Part No. Description 1810000 Haldex (Universal) 1' Sensor 1810001 Sensor Clip 1810002 Meritor/Wabco 1' Sensor 1810003 Meritor/Wabco 3' Sensor