The accumulator is within the hydraulic brake booster-
Did you bleed the brake if so its probably not done right also have you tried erasing the code with a scantool
BLEEDING BRAKE SYSTEM
CAUTION:Wash off brake fluid immediately if it comes into contact with a painted surface.
NOTE:If any work is done on brake system or if air in brake lines is suspected, bleed air from system. When bleeding, keep amount of fluid in reservoir between Min. And Max. Use only SAE J1703 or FMVSS No. 116 DOT 3 brake fluid.
NOTE:If hydraulic brake booster has been disassembled, or if reservoir becomes empty, bleed hydraulic brake booster. See HYDRAULIC BRAKE BOOSTER.
Fill reservoir with brake fluid.
Connect a vinyl tube to bleeder screw on brake caliper and place other end in a clear jar.
Depress brake pedal several times, then loosen bleeder screw with pedal held down.
When fluid stops coming out, tighten the bleeder screw to specification. See TORQUE SPECIFICATIONS.
Release brake pedal. Repeat steps 3 and 4 until all air in fluid has been bled out.
Repeat procedure to bleed air out of brake line for each wheel.
HYDRAULIC BRAKE BOOSTER
With Hand-held Tester
Turn ignition switch off and depress brake pedal more than 40 times. When pressure in power supply system is released, reaction force becomes light and stroke becomes longer.
Turn ignition switch on and check that pump stops after 30-40 seconds. If pump does not stop, repeat 1.
With ignition switch on, bleed right and left front brake calipers and then right and left rear. See BRAKE LINE.
Turn ignition switch off. Connect LEXUS hand-held tester to (DLC3). See Fig. 2.
Turn ignition switch on and select "AIR BLEEDING" on hand-held tester.
Select "FR LINE", depress brake pedal and hold it to bleed right front brake caliper. Repeat until there are no more air bubbles in fluid.
Select "FL LINE", depress brake pedal and hold it to bleed left front brake caliper. Repeat until there are no more air bubbles in fluid.
Select "RR LINE" and repeat procedure for right rear brake caliper and "LR LINE" for left rear.
Clear DTC. See CLEARING CODES under SELF-DIAGNOSTIC SYSTEM.
Images (Click to enlarge)
Saturday, March 17th, 2012 AT 6:12 AM