Suzuki XL7 2007 Service Manual page 1396

4E-46 ABS:
Antilock Brake System Automated Bleed
Procedure
WARNING
!
Refer to "Brake Fluid Irritant Caution: ".
CAUTION
!
Refer to "Brake Fluid Effects on Paint and
Electrical Components Notice: ".
NOTE
Before performing the antilock brake system
(ABS) Automated Bleed Procedure, first
perform a manual or pressure bleed of the
base brake system. Refer to "Hydraulic Brake
System Bleeding (Pressure): " "Hydraulic
Brake System Bleeding (Manual): ". The
automated bleed procedure is recommended
when one of the following conditions exist:
• Base brake system bleeding does not
achieve the desired pedal height or feel
• Extreme loss of brake fluid has occurred
• Air ingestion is suspected in the
secondary circuits of the brake modulator
assembly
The ABS Automated Bleed Procedure uses a scan tool
to cycle the system solenoid valves and run the pump in
order to purge any air from the secondary circuits. These
circuits are normally closed off, and are only opened
during system initialization at vehicle start up and during
ABS operation. The automated bleed procedure opens
these secondary circuits and allows any air trapped in
these circuits to flow out toward the brake corners.
CAUTION
!
The Auto Bleed Procedure may be terminated
at any time during the process by pressing
the EXIT button. No further Scan Tool
prompts pertaining to the Auto Bleed
procedure will be given. After exiting the
bleed procedure, relieve bleed pressure and
disconnect bleed equipment per
manufacturers instructions. Failure to
properly relieve pressure may result in
spilled brake fluid causing damage to
components and painted surfaces.
Repair Instructions
Automated Bleed Procedure
1. Raise and support the vehicle. Refer to "Lifting and
Jacking the Vehicle: ".
2. Remove all 4 tire and wheel assemblies. Refer to
"Tire and Wheel Removal and Installation: ".
3. Inspect the brake system for leaks and visual
damage. Refer to "Symptoms - Hydraulic Brakes: ".
Repair or replace components as needed.
4. Lower the vehicle.
5. Inspect the battery state of charge. Refer to "Battery
Inspection/Test: ".
6. Install a scan tool.
7. Turn the ignition ON, with the engine OFF.
8. With the scan tool, establish communications with
the ABS system. Select Special Functions. Select
Automated Bleed from the Special Functions menu.
9. Raise and support the vehicle. Refer to "Lifting and
Jacking the Vehicle: ".
10. Following the directions given on the scan tool,
pressure bleed the base brake system. Refer to
"Hydraulic Brake System Bleeding (Pressure): "
"Hydraulic Brake System Bleeding (Manual): ".
11. Follow the scan tool directions until the desired
brake pedal height is achieved.
12. If the bleed procedure is aborted, a malfunction
exists. Perform the following steps before resuming
the bleed procedure:
– If a DTC is detected, refer to "Diagnostic Trouble
– If the brake pedal feels spongy, perform the
13. When the desired pedal height is achieved, press
the brake pedal to inspect for firmness.
14. Lower the vehicle.
15. Remove the scan tool.
16. Install the tire and wheel assemblies. Refer to "Tire
and Wheel Removal and Installation: ".
17. Inspect the brake fluid level. Refer to "Master
Cylinder Reservoir Filling: ".
18. Road test the vehicle while inspecting that the pedal
remains high and firm.
Code (DTC) List - Vehicle Diagnostic Information:
", and diagnose the appropriate DTC.
conventional brake bleed procedure again. Refer
to "Hydraulic Brake System Bleeding (Pressure): "
"Hydraulic Brake System Bleeding (Manual): ".