17-48 SELF-DIAGNOSIS SYSTEM
ABS Hydraulic Unit Communication Error (Service Code 1B)
ABS Hydraulic Unit Communication Line
When the data (for status of ABS hydraulic unit) is not sent
from the ABS 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
ABS Hydraulic Unit Connector (see ABS Hydraulic Unit
Removal in the Brakes chapter)
Meter Unit Connector (see Meter Unit Removal in the
Electrical System chapter)
Wiring Continuity Inspection
ABS Hydraulic Unit Connector [A] ←→
Meter Unit Connector [B]
ABS Hydraulic Unit Terminal 2 [C] ←→ Meter Unit
ABS Hydraulic Unit Terminal 11 [E] ←→ Meter Unit
If the wiring is good, replace the ABS hydraulic unit (see
ABS Hydraulic Unit Removal/Installation in the Brakes