2005 TOYOTA AVENSIS Circuit

F45142
Skid Control ECU
with Actuator
SS2
SS1
YGND
YIGA S1 S1 S1 S129
13
16
30
IE83 10
W±G
W±L IE8
W±L J18
J/C
W±G
W±L
W±G
W±L GND
CANL
CANHUBAT
GND CAN
HIGH
12V CAN
LOWB
W (Shielded)
B
W (Shielded)
B
W
(Shielded)
B
W
(Shielded)
B W W±B
W±B (Shielded)1 75
6 4 2 1
3 J6C
B C
B
A
J15
J/C
IK J7E D BD
B
A A B D BJ/C
1
2
9 IE8
J6 J6 J6
J6 J6 J7
J7
J7IE8
IE8
Y1
YAW Rate Sensor
S12
Steering Sensor LHD:
W±G
C
B
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±793
AVENSIS REPAIR MANUAL (RM1018E)
DTC C0371/55 OPEN OR SHORT CIRCUIT IN YAW RATE
SENSOR CIRCUIT
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C0371/55
Detection of any of conditions from 1 through 4:
1. The voltage of sensor signal is out of range.
2. The offset value of sensor signal is outside the plausible
range.
3. Sensor signal changes rapidly under normal driving.
4. Yaw rate sensor value is considerably different from the
reference value of yaw rate during cornering.

Yaw rate sensor

Yaw rate sensor circuit
WIRING DIAGRAM
05C5N±01

C95217
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±795
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.
1READ VALUE OF YAWRATE SENSOR
(a)Remove the 2 bolts and yaw rate sensor with connector
still connected.
(b)Connect the hand±held tester to the DLC3.
(c)Turn the ignition switch and hand±held tester main switch ON.
(d)Select the DATALIST mode on the hand±held tester.
(e)Check the yaw rate value 0
5 deg/s.
(f)Check that the yaw rate value of the yaw rate sensor dis- played on the hand±held tester is changing: Place the
yaw rate sensor vertically to the ground and turn the sen-
sor pivoted on its center.
OK:
Yaw rate value is changing.
OKREPLACE ABS & TRACTION ACTUATOR ASSY (See page 32±57)
NG
2 CHECK HARNESS AND CONNECTOR(YAW RATE SENSOR ± SKID CONTROL ECU)
(a) Check for an open or short circuit in harness and connector between each term\
inal SS1, SS2, YIGA
and YGND of the yaw rate sensor and skid control ECU (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

F45142
Skid Control ECU
with Actuator
SS2
SS1
YGND
YIGA S1 S1 S1 S129
13
16
30
IE83 10
W±G
W±L IE8
W±L J18
J/C
W±G
W±L
W±G
W±L GND
CANL
CANHUBAT
GND CAN
HIGH
12V CAN
LOWB
W (Shielded)
B
W (Shielded)
B
W
(Shielded)
B
W
(Shielded)
B W W±B
W±B (Shielded)1 75
6 4 2 1
3 J6C
B C
B
A
J15
J/C
IK J7E D BD
B
A A B D BJ/C
1
2
9 IE8
J6 J6 J6
J6 J6 J7
J7
J7IE8
IE8
Y1
YAW Rate Sensor
S12
Steering Sensor LHD:
W±G
C
B 05±790
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC C0365/43 MALFUNCTION IN DECELERATION SENSOR
CIRCUIT DESCRIPTION
The lateral acceleration sensor is combined with the yaw rate sensor.
DTC No.DTC Detecting ConditionTrouble Area
C0365/43
Detection of any of conditions from 1 through 2:
1. Lateral acceleration difference between sensor signal
and reference value is large.
2. Offset value of sensor signal is higher than the standard
value.
3. Sensor signal is out of range

Yaw rate sensor

Yaw rate sensor circuit
WIRING DIAGRAM
05C5L±01

C95216
05±792
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
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.
1READ VALUE OF YAWRATE SENSOR(INCLUDE LATERAL ACCELERATION SENSOR)
(a)Remove the 2 bolts and lateral acceleration sensor with
connector still connected.
(b)Connect the hand±held tester to the DLC3
(c)Turn the ignition switch and hand±held tester main switch ON.
(d)Select the DATALIST mode on the hand±held tester.
(e)Check the lateral acceleration value 0
0.23 G.
(f)Check that the acceleration value displayed on the hand±
held tester is changing: Place the yaw rate sensor verti-
cally to the ground and turn the sensor pivoted on its cen-
ter.
OK:
Lateral acceleration value is changing.
OKREPLACE ABS & TRACTION ACTUATOR ASSY (See page 32±57)
NG
2 CHECK HARNESS AND CONNECTOR(YAW RATE SENSOR ± SKID CONTROL ECU)
(a) Check for an open or short circuit in harness and connector between each term\
inal SS1, SS2, YIGA
and YGND of the yaw rate sensor and skid control ECU (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

C95006
Battery FL MAINSkid Control ECU with Actuator
B
L
1 ALT ABS No.2 Engine Room R/B and J/B
1
1A
W±BS1
S165
+BS
12
GND2 GND1
S1 10 W±B
W±B
EA12
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±787
AVENSIS REPAIR MANUAL (RM1018E)
DTC C0278/11 OPEN OR SHORT CIRCUT IN ABS
SOLENOID RELAY
CIRCUIT DESCRIPTION
This relay supplies power to each ABS solenoid. After the ignition switch is turned ON, if the initial check is
OK, the relay goes on.
DTC No.DTC Detecting ConditionTrouble Area
C0278/11
Detection of any conditions from 1 to 3:
1. 3 or more solenoid valves are shown faulty in response
and simultaneously valve supply voltage is detected
faulty.
2. Solenoid valve relay is not turned OFF.

ABS solenoid relay

ABS solenoid relay circuit
WIRING DIAGRAM
05782±02

F45132
Battery FL MAINSkid Control ECU
with Actuator
B±G (*1) L (*1)
1 ALT VSC Engine Room R/B No.4 & Engine Room J/B No.4
1
4B
W±BS1
S1109
+BM
12
1 2
GND1 GND2
S16
W±BW±B
*1: 1AZ±FSE
*2: 1CD±FTVEA4
L (*2)
W (*2)
2 12 33 11B1 ALT Engine Room R/B No.3Engine Room R/B No.1 &
Engine Room J/B No.1
B (*2)
B±G (*1)VSC 05±784
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC C0273/13 OPEN OR SHORT CIRCUIT IN ABS MOTOR
RELAY CIRCUIT
CIRCUIT DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS & BA & TRC & VSC are acti-
vated, the ECU switches the motor relay ON and operates the ABS pump motor.
DTC No.DTC Detecting ConditionTrouble Area
C0273/13
Detection of any conditions from 1 to 3:
1. After actuation of the motor relay, pump motor voltage is
not supplied within 0.08 second.
2. Pump motor voltage is at high level for 2.5 seconds or
more although motor relay does not actuate .
3. Pump motor voltage keeps low level for longer than 0.04
second and the pump repeats activating for 0.7 se-
conds 3 times maximum. At the last time of activation,
the pump motor goes dead because of short circuit.

ABS motor relay

ABS motor relay circuit
WIRING DIAGRAM
05781±02

05±782
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC C0226/21 SFR SOLENOID CIRCUIT
DTC C0236/22 SFL SOLENOID CIRCUIT
DTC C0246/23 SRR SOLENOID CIRCUIT
DTC C0256/24 SRL SOLENOID CIRCUIT
CIRCUIT DESCRIPTION
The solenoid goes on when receiving signals from the ECU and controls the pressure action on the wheel
cylinders to control the braking force.
DTC No.DTC Detecting ConditionTrouble Area
C0226/21
C0236/22
C0246/23
C0256/24
Solenoid valve signal does not match to the check result.
Each solenoid valve
05780±02

F45132
Battery
FL MAIN Skid Control ECU
with Actuator
B±G (*1)R (*1) 1
ALTVSC
Engine Room R/B No.4 & Engine Room J/B No.4
1
4B
W±BS1
S1
10 5
+BS
12
1
2
GND1 GND2
S1 6
W±B W±B
*1: 1AZ±FSE
*2: 1CD±FTV EA4
R (*2)
W (*2)
2
12
331
1B1
ALT
Engine Room R/B No.3
Engine Room R/B No.1 &
Engine Room J/B No.1
B (*2)
B±G (*1) VSC
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±783
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
INSPECTION PROCEDURE
1RECONFIRM DTC
(a)Check if other DTCs are detected (See page 05±756).
YES REPAIR CIRCUIT INDICATED BY OUTPUTCODE
NO
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)