KIBS Hydraulic Unit Communication Line Inspection
When the data (for status of KIBS hydraulic unit) is not sent from the KIBS hydraulic unit to the meter unit and ECU, the service code 1b is displayed.
The data is sent through the CAN communication line.
The service code 1b is detected with the meter unit.
The FI symbol does not appear in this error code.
When the service code 1b [A] is detected, the ABS indicator light (LED) [B] goes on and the code of 1b displayed on the LCD.

Special Tool - Hand Tester: 57001-1394
Wiring Inspection KIBS Hydraulic Unit Connector [A] ←→ Meter Unit Connector [B] GY/BL lead (KIBS Hydraulic Unit terminal 2) [C] LB lead (KIBS Hydraulic Unit terminal 11) [D]

If the wiring is good, replace the KIBS hydraulic unit (see KIBS Hydraulic Unit Removal/Installation in the Brakes chapter).
KIBS Hydraulic Unit Communication Line Circuit

1. ECU
2. Joint Connector D
3. Joint Connector C
4. Meter Unit
5. ABS Indicator Light (LED)
6. KIBS Hydraulic Unit
Oxygen Sensor Heater Power Source Voltage InspectionPiston Wear Inspection
Measure the outside diameter [A] of each piston 5 mm
(0.20 in.) [B] up from the bottom of the piston at a right
angle to the direction of the piston pin.
If the measurement is under service limit, replace the piston.
Piston Diameter
Standard: 75.959 75.974 mm
(2.9905 2.9911 in.)
...
Throttle Body Assy Assembly
Before assembling, blow away dirt or dust from the throttle
body and delivery pipe assy by applying compressed air.
Replace the O-rings [A] of the joint pipe [B] with new ones.
Apply engine oil to the new O-rings, and insert it to the
delivery pipes [C].
Insert the joint pipe so th ...
What if I am not Satisfied With My Warranty Service?
If you aren’t satisfied with your dealership’s repair work or operations, it
is best to
discuss the situation with the appropriate dealership manager. If you have
already
done this, then contact the dealership’s owner or general manager to request a
review of the issue.
If you are un ...