17-94 SELF-DIAGNOSIS SYSTEM
KIBS Hydraulic Unit Communication Error (Service Code 1B)
KIBS Hydraulic Unit Communication Line
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.
When the service code 1B is detected, the yellow ABS
indicator light (LED) [A] and yellow warning indicator light
(LED) [B] go on, white KIBS indicator light (LED) [C] blinks
and the code of 1B [D] displayed on the LCD.
Check the wiring for continuity between main harness
KIBS Hydraulic Unit Connector (see KIBS Hydraulic Unit
Removal in the Brakes chapter)
Meter Unit Connector (see Meter Unit Removal in the
Electrical System chapter)
Wiring Continuity 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