Diagnosis System Inspection - Toyota LAND CRUISER Service Manual Supplement

BR-24
BRAKE SYSTEM (STATION WAGON) - ANTI-LOCK BRAKE SYSTEM (ABS)
DIAGNOSIS SYSTEM
DESCRIPTION
If a malfunction occurs, the system will identify the pro-
blem and the ECU will store the codes for the trouble
items.
At the same time, the system informs the driver of a
malfunction via the " A B S " warning light in the combina-
tion meter.
By turning on the ignition switch, disconnecting the short
pin of the check connector and use SST to connect Tc
and Ei of the check connector, the trouble can be iden-
tified by the number of blinks (diagnostic code) of the war-
ning light.
In the event of two codes, that having the smallest
numbered code will be identified first.
HINT: The warning light does not show the diagnostic
codes while the vehicle is running.
When the transfer is in L (center differential lock) posi-
tion, the ABS does not operate and the ABS warning light
stays on.

DIAGNOSIS SYSTEM INSPECTION

1. INSPECT BATTERY VOLTAGE
Inspect that the battery voltage is about 1 2 V.
2. CHECK THAT WARNING LIGHT TURNS ON
(a) Confirm that the center differential is free.
(b) Turn the ignition switch on.
(c) Check that the " A B S " warning light turns on for 3
seconds.
If not, inspect and repair or replace the fuse, bulb and
wire harness.