2005 TOYOTA AVENSIS brake

C52361
TcCGDLC3
±
DIAGNOSTICS ABS WITH EBD SYSTEM
05±749
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1INSPECT DLC3 TERMINAL VOLTAGE(Tc TERMINAL)
(a)Turn the ignition switch ON.
(b)Measure the voltage between terminals Tc and CG of the
DLC3.
OK:
Voltage: 10 to 14 V
OKGo to step 3
NG
2CHECK HARNESS AND CONNECTOR(DLC3 ± BODY GROUND)
(a)Check for an open or short circuit in harness and connector between terminal \
CG of the DLC3 and body ground (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
3 CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU ± DLC3)
(a) Check for an open or short circuit in harness and connector between term\
inal Tc of the skid control ECU and the DLC3 (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE BRAKE ACTUATOR ASSY(See page 32±54)

05±744
± DIAGNOSTICSABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
BRAKE WARNING LIGHT CIRCUIT
CIRCUIT DESCRIPTION
The Brake warning light comes on when the brake fluid is insufficient, the parking brake is applied or the EBD
is defective.
0577X±04

F45135
B±R
DH DA18 2Driver Side J/B
IGNEBDW S212
IE118 4
B±W
C11 C11Combination Meter
BrakeSkid Control ECU
with Actuator
P P 22
17
C10
AM2
4B 4A11IG2
A 1
2 AM2
3
IK 1A
Engine Room R/B No.3 Engine Room R/B No.1 & Engine Room J/B No.1
1
3 Engine Room J/B No.41
IO ILJ15
J/C
Battery
*1: Gasoline
*2: 1CD±FTV
*3: LHD
*4: RHD(*3) (*4) (*3) (*4)B±W CA CA
J8 J26 J8 J26J/C
B±R
IE4 IP111
(*3) (*4) B±R
B (*2)B±G (*1)
B (*2)
FL MAINB±G (*1)
W±B (*3 *2)
W±B (*3 *1)A A
AAJ17
J/C
J16
J/C W±B
(*3) W±B (*4)
W±B (*4)
I13
Ignition SW
46
± DIAGNOSTICSABS WITH EBD SYSTEM
05±745
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM

05±746
±
DIAGNOSTICS ABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1RECONFIRM DTC
(a)Check the DTC (See page 05±699). OK:
Normal code
NGREPAIR CIRCUIT INDICATED BY OUTPUTCODE
OK
2INSPECT PARKING BRAKE SWITCH CIRCUIT
(a)Check for an open or short circuit in the parking brake switch circuit (See page 01±32). NGREPAIR OR REPLACE PARKING BRAKESWITCH CIRCUIT
OK
3INSPECT BRAKE FLUID LEVEL WARNING SWITCH CIRCUIT
(a)Check the brake fluid level in reservoir.
(b)Check for an open or shot circuit in brake fluid level warning switch ci\
rcuit (See page 01±32). NG REPAIR OR REPLACE BRAKE FLUID LEVELWARNING SWITCH CIRCUIT
OK
4 INSPECT VACUUM WARNING SWITCH CIRCUIT
(a) Check for an open or short circuit in harness and connector between the vacuum warning switch and skid control ECU (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
5 INSPECT COMBINATION METER ASSEMBLY(BRAKE WARNING LIGHT CIRCUIT)
(a)Check for an open or short circuit in the combination meter (See page 01±32). NG REPAIR OR REPLACE COMBINATION METERASSEMBLY
OK

±
DIAGNOSTICS ABS WITH EBD SYSTEM
05±747
AVENSIS REPAIR MANUAL (RM1018E)
6 CHECK HARNESS AND CONNECTOR(BRAKE ACTUATOR ± COMBINATION
METER)
(a) Check for an open or short circuit in harness and connector between the brake\
actuator and combina-
tion meter (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE BRAKE ACTUATOR ASSY(See page 32±54)

±
DIAGNOSTICS ABS WITH EBD SYSTEM
05±743
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 if you are using the hand±held tester and\
start from step 2 if you are not using
the hand±held tester.
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(ABS WARNING LIGHT)
(a)Check that ºONº and ºOFFº of the ABS warning light is shown \
on the combination meter by the
hand±held tester.
OKREPLACE BRAKE ACTUATOR ASSY(See page 32±54)
NG
2INSPECT COMBINATION METER ASSY(ABS WARNING LIGHT) (See page 71±1)
(a)Disconnect the connector from the skid control ECU.
(b)Turn the ignition switch ON.
(c)Check the ABS warning light.
OK:
ABS warning light comes on
NGREPAIR OR REPLACE COMBINATION METERASSY
OK
3CHECK HARNESS AND CONNECTOR(WA CIRCUIT)
(a)Check for a short circuit in harness and connector between terminal WA of the skid control ECU and combination meter (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE BRAKE ACTUATOR ASSY(See page 32±54)

F45088GNDGND
F45088GNDGNDWA
05±740
±
DIAGNOSTICS ABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
4INSPECT SKID CONTROL ECU CONNECTOR(GND TERMINAL CONTINUITY)
(a)Measure resistance between terminal GND of the skid control ECU harness side connector and body ground.
Resistance: 1
or less
NGREPAIR OR REPLACE HARNESS OR CONNECTOR(GND TERMINAL ± BODY
GROUND)(See page 01±32)
OK
CHECK AND REPAIR HARNESS AND CONNECTOR(BATTERY ± IG1 TERMINAL)
(See page 01±32)
5INSPECT COMBINATION METER(ABS WARNING LIGHT)
(a)Disconnect the skid control ECU connector.
(b)Using service wire, connect terminals WA and GND of the skid control ECU harness side connector.
(c)Turn the ignition switch ON. OK:
ABS warning light goes off.
NGREPAIR OR REPLACE COMBINATION METER
OK
REPLACE BRAKE ACTUATOR ASSY(See page 32±54)

F45132
Battery FL MAINSkid Control ECU
with Actuator
B±G (*1) L (*1)
1 ALT ABS Engine Room R/B No.4 & Engine Room J/B No.4
1
4B
W±BS2
S21 2
+BM
12
1 2
GND1 GND2
S24
W±BW±B
*1: Gasoline
*2: 1CD±FTVEA4
L (*2)
W (*2)
2 12 33 11B1ABS ALT Engine Room R/B No.3Engine Room R/B No.1 &
Engine Room J/B No.1
B (*2)
B±G (*1)
± DIAGNOSTICSABS WITH EBD SYSTEM
05±735
AVENSIS REPAIR MANUAL (RM1018E)
DTC C1350/51 PUMP MOTOR IS LOCKED/OPEN CIRCUIT
IN PUMP MOTOR GROUND
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1350/51
When any of the following 1 through 3 is detected.
1. No motor voltage supply after skid control ECU starts
the motor relay.
2. A high level of motor voltage when skid control ECU
does not start the motor relay.
3. The pump motor voltage is high level for a certain time
after the motor relay has elapsed.
Brake actuator pump motor
WIRING DIAGRAM
05C5B±01