Caution: Refer to Brake Fluid Irritant Caution in the Preface section.
Caution: For safety reasons, the brake pressure modulator valve assembly must not be repaired, the complete unit must be replaced. With the exception of the EBCM, no screws on the brake pressure modulator valve assembly may be loosened. If screws are loosened, it will not be possible to get the brake circuits leak-tight and personal injury may result.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.
Important:
• The ignition switch must be placed in the OFF mode ONLY, before disconnecting the negative battery cable during this procedure. If the ignition switch is accidentally placed into ignition ON engine OFF mode, the control modules will be activated
and disconnecting the negative cable will cause various DTC's to be set. Refer to
Keyless Entry System Description and Operation
. • After the ignition switch is placed into OFF mode, a waiting period of 2 minutes must be observed to allow the high-speed LAN control modules to deactivate before disconnecting or connecting the negative battery cable during this procedure. If the
waiting period is not observed, one or more of these control modules may still be activated, this will cause various DTC's to be set.
Important: The area around the electronic brake control module (EBCM) must be free from loose dirt to prevent contamination of disassembled ABS components.
Important: Record the location of all brake pipes to the brake pressure modulator valve (BPMV) for use as an aid during installation.
Important: It is not necessary to remove the washer solvent container from the vehicle.
Notice: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.
Notice: Refer to Fastener Notice in the Preface section.
Important: Use New EBCM/BPMV screws after separating the EBCM from the BPMV.
Tighten
Tighten the 4 NEW EBCM to BPMV screws in sequence (1-4) to 5 N·m (44 lb in).
Important: Make sure the rubber isolator is installed on the BPMV. The isolator protects the EBCM/BPMV assembly from vehicle vibrations.
Tighten
Tighten the BPMV nuts to 10 N·m (89 lb in).
Notice: To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.
Caution: The brake pipes must be fully installed to the brake pipe mounting retainers on the frame. Failure to properly retain the brake pipes may cause the pipes to contact the frame and/or the transmission resulting in possible loss of brake fluid and personal injury.
Caution: Make sure brake pipes are correctly connected to BPMV. If brake pipes are switched by mistake Inlet vs. Outlet, wheel lockup will occur and personal injury may result.
Important: If a new BPMV is being installed, remove the shipping plugs from the valve openings.
Tighten
Tighten the wheel brake pipes to 27 N·m (20 lb ft).
Tighten
Tighten the master cylinder brake pipes to 27 N·m (20 lb ft).