Page 849 of 5135
05±730
± DIAGNOSTICSABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC C1249/58 STOP LIGHT SWITCH CIRCUIT
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1249/58
Stop light switch circuit is open, and stop light switch
voltage is in the level between 40 % and 70 % of the
battery voltage.Stop light switch
Stop light switch circuit
050XZ±13
Page 850 of 5135

F45775
Engine Room J/B No.4
ALT 1
4B1
4D B±G (*1)
B±L (*2) FL MAINS2 20
IR1Skid Control ECU
with Actuator
DA
DA DNDMDL 1
1 2
1
1 22
22 STOPDriver Side J/B
G±W (*4) G±W (*4)
G±W (*3)
G±W (*3)6
IE3
IE3 IR12
11
R±W (*3) R±W (*4) R±W (*4)
R±W (*3) S13
Stop Light SW
G±W
G±W
B±G (*1)
STP
123 ALT Engine Room R/B No.3
W (*2)
ED11 12
J/C
J30B
(*5) (*6) (*7) (*5) (*6) (*7)
(*5) (*6) (*7) (*5) (*6) (*7)STOP
STOP J31CJ32
J/C
B (*2)
W±B (*5) G±W (*5) W±B (*5)
W±B
W±B
W±B
(*5)
CC2 1
R13
R14 R14 R14 R14 R14 R14R13 R13 R13 R13 R13J30
J30
J30 J31
J31 21
1 54 64
4 7 3
3 3 6
G±WJ/C
C
C
C B B
G±W G±W
G±W (*6, *7)
BG1Rear Combination Light LHH20
High Mounted Stop Light
N8
Noise
Filter
(Stop Light) Rear Combination Light RH
H20 High Mounted
Stop Light
W±B (*7)
W±B (*7)G±W (*7)
W±B (*7) W±B (*7) W±B (*6)W±B (*6)G±W (*6)
W±B (*6, *7)
W±B (*6, *7)
W±B
(*6) (*7)W±B (*6)
W±B (*6)
J33 J34AAJ/C1 2BE1
BD1 BF113
G±W L(*6)
L(*7)
BD1 BF1(*6) (*7)(*6, *7)
G±W
(*6, *7)
1
BX BE1 BG1 41
2 3
24
BT BS Battery
*1: Gasoline
*2: 1CD±FTV
*3: LHD
*4: RHD*5: S/D
*6: L/B
*7: W/G
± DIAGNOSTICSABS WITH EBD SYSTEM
05±731
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
Page 851 of 5135

F45088GNDGNDSTP
05±732
±
DIAGNOSTICS ABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1INSPECT STOP LAMP SWITCH ASSY
(a)Check that the stop light comes on when the brake pedal is depressed and goes\
off when the brake pedal is released.
NGGo to step 4
OK
2INSPECT SKID CONTROL ECU TERMINAL VOLTAGE(STP TERMINAL)
(a)Disconnect skid control ECU connector.
(b)Measure the voltage between terminal STP and GND of the skid control ECU harness side connector when the
brake pedal is depressed.
OK:
Voltage: 10 to 14 V
OKREPLACE BRAKE ACTUATOR ASSY (See page 32±54)
NG
3 CHECK HARNESS AND CONNECTOR(STOP LIGHT SWITCH ± SKID CONTROL ECU)
(a) Check for an open or short circuit in harness and connector between the stop light switch and skid
control ECU (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05±708)
4 CHECK HARNESS AND CONNECTOR(STOP LIGHT CIRCUIT)
(a)Check for an open or short circuit in harness and connector of the stop light\
circuit (See page 01±32). OK REPLACE STOP LAMP SWITCH ASSY
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Page 852 of 5135

±
DIAGNOSTIC SABS WITH EBD & BA & TRC & VSC SYSTEM
05±807
AVENSIS RE PAIR MANUAL (RM1018E)
DT C C1237/3 7TIRE S OF DIFFERENT SIZE
CIRCUI T DESCRIPTION
DT C No.DTC Detecting ConditionTrouble Area
C1237/37
Detection of any of conditions from 1 through 4:
1. When the ignition switch is ON, the speed di fference
between max. and min. wheel speed is 5 % or more for
20 sec. at vehicle speed 20 km/h (12 mph)or more.
2 . When the ignition switch is ON, the slip di fference be
wheels at either side of vehicle 6 % or more (vehicle
speed: 100 km/h (62 mph) or more).
3 . Continuous ABS control for 60 seconds or more.
4 . Interference on 1 or more wheels for 20 seconds with
the brake pedal depressed, or for 5 seconds when the
brake pedal is not depressed.
Speed sensor
Senso rrotor
INSPECTIO N PROCEDURE
1 INSPEC T TIRE SIZE
N G REPLAC E TIRES SO TH AT ALL 4 TIRES ARE
SAM E IN SIZE
OK
2 INSPECT SPEED SENSOR RO TOR
(a ) Check the speed sensor rotors ( See page 05±774 or 05±778 ).
N G REPLACE SENSOR RO TOR
OK
3 INSPECT SPEED SENSOR
(a) Check the speed sensors ( See page 05±774 or 05±778 ).
N G REPLACE SPEED SENSOR
OK
4 CHECK HARNESS AND CONNEC TOR(SPEED SENSOR ± SKID CONTROL ECU)
(a ) Chec k for an open or short circuit in harness and connector between each terminal of the speed sensor
an d skid control ECU ( See page 01±32).
N G REPAIR OR REPLACE HARNESS OR
CONNEC TOR
OK
REPLAC E ABS & TRACTION ACTU ATOR ASSY( See page 32±57 )
05786±02
Page 853 of 5135
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±805
AVENSIS REPAIR MANUAL (RM1018E)
DTC C1225/25 SMC SOLENOID CIRCUIT
DTC C1226/26 SMC SOLENOID CIRCUIT
DTC C1227/27 SRC SOLENOID CIRCUIT
DTC C1228/28 SRC 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
C1225/25Open or short in SMC1 circuit.Brake actuator
SMC1 circuit
C1226/26Open or short in SMC2 circuit.Brake actuator
SMC2 circuit
C1227/27Open or short in SRC1 circuit.Brake actuator
SRC1 circuit
C1228/28Open or short in SRC2 circuit.Brake actuator
SRC2 circuit
05785±02
Page 854 of 5135
F45132
Battery
FL MAIN Skid Control ECU
with Actuator
B±G (*1)L (*1) 1
ALT
Engine Room R/B No.4 & Engine Room J/B No.4
1
4B
W±BS1
S1 10
9
+BM
12
1
2
GND1 GND2
S1 6
W±B W±B
*1: 1AZ±FSE
*2: 1CD±FTV EA4
L (*2)
W (*2)
2
12
331
1B1
VSC
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
05±806
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
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)
Page 855 of 5135
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±801
AVENSIS REPAIR MANUAL (RM1018E)
DTC C1208/54 MALFUNCTION IN STEERING ANGLE
SENSOR CIRCUIT
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1231/31
Detection of any of conditions 1 through 7:
1. When the condition that ECU terminal IG1 voltage is 9.8
V or more, and does not receive data from steering
angle sensor continues.
2. Sensor internal failure.
3. The offset value is out of range.
4. Sensor signal changes too rapidly.
5. Steering angle value difference between measured and
reference is out of range.
6. Steering sensor is not centered.
7. Steering sensor signal is out of range.
8. Steering sensor is not calibrated.
Steering angle sensor
Steering angle sensor circuit
05C5R±01
Page 856 of 5135
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±802
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM