Installation Procedure
- Inspect the brake modulator assembly bracket insulators for damage and replace if necessary.
- Install the brake modulator assembly to the bracket.
- Install the brake modulator assembly bolt.
Tighten: Tighten the bolt to 11 N.m (97 lb in).
- Install the brake modulator and bracket assembly (3). Align the brake modulator assembly bracket to the lower bracket bolt (2).
- Install the 2 upper brake modulator bracket bolts (1).
Tighten: Tighten the bolts to 10 N.m (89 lb in).
- Install the lower brake modulator bracket bolt.
Tighten: Tighten the bolt to 10 N.m (89 lb in).
- Install the 2 rear brake pipe fittings (1) to the brake modulator assembly.
Tighten: Tighten the fittings to 20 N.m (15 lb ft).
- Install the 2 front brake pipe fittings (2) to the brake modulator assembly.
Tighten: Tighten the fittings to 20 N.m (15 lb ft).
- Connect the EBCM electrical connector (3). Ensure the tabs on the cam lever are securely locked in place.
- Install the brake master cylinder and brake pipes assembly to the vacuum brake booster.
- Install the 2 master cylinder brake pipe fittings to the brake modulator assembly.
Tighten: Tighten the fittings to 20 N.m (15 lb ft).
- If equipped, connect the clutch master cylinder hose to the brake master cylinder reservoir.
- Install 2 new brake master cylinder nuts.
Tighten: Tighten the nuts to 20 N.m (15 lb ft).
- Position the wiring harness upward and install the wiring harness retainer to the master cylinder mounting stud on the vacuum brake booster.
- Connect the brake booster vacuum sensor electrical connector.
- Connect the brake fluid level indicator switch electrical connector.
- If a new brake modulator assembly was installed, program the brake modulator assembly. Refer to Electronic Brake Control Module Programming and Setup .
- Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual) or Hydraulic Brake System Bleeding (Pressure) .
- Perform the Diagnostic System Check - Vehicle .
- Observe the brake pedal feel after performing the diagnostic system check. If the pedal now feels spongy, air may have been introduced into the secondary hydraulic circuit of the brake modulator which then may have been introduced into the primary circuit. If the pedal feels spongy, perform the Antilock Brake System Automated Bleed Procedure .
IMPORTANT:
If necessary, a small amount of denatured alcohol can be used as an assembly aid for installing the brake modulator assembly mounting pins to the brake modulator assembly bracket.
NOTE:
Refer to Fastener Notice
.
Fig 6: View Of Brake Fluid Level Indicator Switch & Vacuum Brake Booster Vacuum Sensor Electrical Connectors
IMPORTANT:
A new brake modulator assembly comes with both the primary and secondary circuits pre-filled with brake fluid. If the ignition key has not been cycled after installation, only a base brake bleed is necessary.