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Home >> Jaguar >> 2011 >> XF Base >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brake Actuation -- XF/X250 >> Hydraulic Brake Actuation >> Description And Operation >> Hydraulic Brake Actuation - System Operation And Component Description (G970078) >> Abs Module >> Notes

Abs Module: Notes

G11414144
ITEM DESCRIPTION
1 LH (left-hand) front brake
2 RH (right-hand) rear brake
3 LH rear brake
4 RH front brake
5 Primary circuit inlet port
6 Secondary circuit inlet port

The ABS module is located in the passenger side, rear engine bay and incorporates the HCU. The HCU is a four channel unit that modulates the supply of hydraulic pressure to the brakes under control of the ABS module.

The primary and secondary outlets of the master cylinder are connected to the primary and secondary circuits within the HCU. The primary circuit in the HCU has separate outlet ports to the RH front and LH rear brakes. The secondary circuit in the HCU has separate outlet ports to the LH front and RH rear brakes.

CAUTION: The ABS module and the HCU are a single unit and must not be separated.