Brakes - Hydraulic Pressure Switch R&R Corrections
BRAKESBR002-98
JANUARY 9, 1998
TITLE:
REPAIR MANUAL CORRECTION: HYDRAULIC BRAKE BOOSTER PRESSURE SWITCH
MODELS:
'98 GS 400/300
Introduction
Repair Manual corrections have been made to the Hydraulic Brake Booster Pressure Switch (PH) and (PL) conditions check as shown:
PUBLICATION NUMBER PUBLICATION NAME AFFECTED PAGES
RM583U '98 GS 400/300 DI-445, DI-446,
DI-460,DI-462 Repair Manual
Affected Vehicles
1998 GS 4OO/3OOs
Warranty Information
Repair Manual Corrections
Page DI-445 - DIAGNOSTICS - ABS & HYDRAULIC BRAKE BOOSTER POWER SUPPLY SYSTEM
Step 5 - Check Pressure Switch (PH). The pressure switch (PH) condition of the hydraulic brake booster pressure is NOT VALID when using the Lexus Hand Held Tester, because the ABS/TRAC and VSC ECUs do not support it.
Use the procedure as described in the Repair Manual when the Lexus Hand Held Tester is NOT used.
Page DI-446 - DIAGNOSTICS - ABS & HYDRAULIC BRAKE BOOSTER POWER SUPPLY SYSTEM
Step 6 - Check Pressure Switch (PL). The pressure switch (PL) condition of the hydraulic brake booster pressure is NOT VALID when using the Lexus Hand Held Tester, because the ABS/ TRAC and VSC ECUs do not support it.
Use the procedure as described in the Repair Manual when the Lexus Hand-Held Tester is NOT used.
Page DI-460 - DIAGNOSTICS - ABS & HYDRAULIC BRAKE BOOSTER
POWER SUPPLY SYSTEM
Step 4 - Check Pressure Switch (PH). The pressure switch (PH) condition of the hydraulic brake booster pressure is NOT VALID when using the Lexus Hand Held Tester, because the ABS/TRAC and VSC ECUs do not support it.
Use the procedure as described in the Repair Manual when the Lexus Hand Held Tester is NOT used.
Page DI-462 - DIAGNOSTICS - ABS & HYDRAULIC BRAKE BOOSTER POWER SUPPLY SYSTEM
Step 6 - Check Pressure Switch (PL). The pressure switch (PL) condition of the hydraulic brake booster pressure is NOT VALID when using the Lexus Hand Held Tester, because the ABS/TRAC and VSC ECUs do not support it.
Use the procedure as described in the Repair Manual when the Lexus Hand Held Tester is NOT used.