Get Modular Abs Series Installation Instructions - Haldex

Depress and release the stop lamp switch (or the brake pedal) three (3) times within 15 seconds after switching the ignition ON. 3. After a pause of five (5) seconds, the ECU will begin responding with active Blink Codes (BCs).

The four common reasons that typically cause this light to turn on include a malfunctioning ABS module, low levels in the fluid reservoir, broken wheel speed sensors, or the system is turned off.

When that happens, it means the ABS bulb is burned out and needs to be repaired along with the fault illuminated on your truck's dash. Flashing lights on the dash of the truck: This signals a need to replace or repair a failing ABS module.

The ABS controller/modulator is the heart of any ABS or ESC system. The modulator gets the brake pressure from the master cylinder. Inside are the valves and solenoids that control the pressures on the wheel. During normal operation, the pressure from the master cylinder goes through the HCU unaltered.

Upon power-up of the ITCM ABS System (Permanent or Stoplight Power), the ABS warning lights should come “ON” for 3 seconds and then go “OFF.” If the ABS warning light stays “ON,” it may be caused by improper light wiring, or by a fault in the ITCM ABS System. Check for diagnostic fault codes.

21 Red channel wheel speed sensor S1A X Loose sensor, connection, bracket or exciter, damaged exciter, sensor is not properly adjusted or has worn cable insulation, or worn sensor block clip, wheel bearing failure, wheel bearing is not properly adjusted (these faults will only occur when vehicle is traveling >6 mph).

Sensor (3B, 2B) should be installed on Road Side. The yellow sensors must go with the Yellow ABS Valve and the blue sensors must go with the Blue ABS Valve. Sensors should be installed on the least loaded axle or unloaded axle that locks first.