Toyota ZZT230 series, Repair Manual

Page: 511 / 821

Dh100
ore
C0278/11, C0279/1 2
CIRCUIT DESCRIPTION
DIAQNOSTlCS
-
ANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE
ABS Solenoid Relay Circuit
This relay supplies power to each ASS solenoid. After the ignition switch is turned
ON,
if the initial check is
OK, the
re la y goes on.
DTCNo.
DTC Detecting Condition Trouble
Area
Condition
I .
or 2. oontinues for 0.2
sec.
or more:
1. IG1 tennlnal voltage of ABS ECU
is 9.5 - 1 8.5 V,
and
C0278/11
when the solenoid relay
is
ON.,,
•
ABS solenoid relay
2. With solenoid relay ON driving, when
IG!
terminal of
ABS ECU Is lass than 9.5 V."l
•
ABS solenoid relay circuit
C0279112
Immediately after IG switch
has
boon
turned
ON, when
the
solenoid Is OFF.'2
"
•1
Soleno1d relay contact
OFF
condttton:
All of solenoid terminal voltage is half of
IG1
terminal voltage or less than.
'"2
Solenoid relay contact
ON
condition:
All of solenoid terminal voltage is half of
IG
1
lerminal voltage or more.
' ... -