2005 TOYOTA AVENSIS Circuit

05±718
±
DIAGNOSTICS ABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1RECONFIRM DTC
(a)Check if other DTCs are detected (See page 05±699). YES REPAIR CIRCUIT INDICATED BY OUTPUTCODE
NO
REPLACE BRAKE ACTUATOR ASSY(See page 32±54)

F45131
Skid Control ECU
with Actuator
2 1 G R
177
RL+
RL±
S2 S2
A32
ABS Speed Sensor
Rear LH
8
19
S2 S2RR+ RR±
R
A33
ABS Speed Sensor
Rear RH 2 1
V G
P 2
1
110 IB1
IB1
IM1IE2 V P
V
P
IM1IE2 1011
±
DIAGNOSTICS ABS WITH EBD SYSTEM
05±713
AVENSIS REPAIR MANUAL (RM1018E)
DTCC0210/33RIGHT REAR SPEED SENSOR
DTCC0215/34LEFT REAR SPEED SENSOR
DTCC1332/38RIGHT REAR SPEED SENSOR CIRCUIT
DTCC1333/39LEFT REAR SPEED SENSOR CIRCUIT
CIRCUIT DESCRIPTION
Refer to DTC C0200/31, C0205/32, C1330/35, C1331/36 on page 05±709.
DTC No.DTC Detecting ConditionTrouble Area
C0210/33
C0215/34
When any of the following 1 to 3 is detected :
1. Non±plausible high frequent signal, high wheel accelera-
tion or high gradient for 20 sec. with the brake pedal
applied or for 5 sec. when the brake pedal is not applied.
2. After the initial start or restart and when the vehicle
speed has reached 12 km/h (7 mph), the wheel speed of
0 km/h (0 mph) is detected.
3. Deviation of 2 wheel speed.

Right rear and left rear speed sensor

Speed sensor rotor
C1332/38
C1333/39Detecting abnormality in the resistance value of each speed
sensor.
Right rear and left rear speed sensor

Speed sensor circuit
HINT:
DTC No. C0210/33, C1332/38 are for the right rear speed sensor.
DTC No. C0215/34, C1333/39 are for the left rear speed sensor.
WIRING DIAGRAM
0577U±04

W04200
Normal Signal Waveform
1 V / Division 2 m/s / Division GND
F10178OK
NG
±
DIAGNOSTICS ABS WITH EBD SYSTEM
05±715
AVENSIS REPAIR MANUAL (RM1018E)
3CHECK HARNESS AND CONNECTOR(SKID CONTROL SENSOR ± SKID
CONTROL ECU)
(a)Check for on open or short circuit in harness and connector between each skid\
control sensor and the
skid control ECU (See page 01±32).
NGREPAIR OR REPLACE HARNESS ORCONNECTOR
OK
4INSPECT SENSOR AND SENSOR ROTOR SERRATIONS
(REFERENCE) INSPECTION USING OSCILLOSCOPE
(a)Connect the oscilloscope to the terminals RR+ ± RR± and RL+ ± RL± of the skid control ECU.
(b)Drive the vehicle at about 30 km/h (19 mph), and check the signal waveform.
HINT:

As the vehicle speed (wheel revolution speed) increases,
a cycle of the waveform becomes shorter and the fluctua-
tion in the output voltage becomes greater.

When noise is identified in the waveform on the oscillo-
scope, error signals are generated due to the speed sen-
sor rotor's scratches, looseness or foreign matter depos-
ited on it.
OKREPLACE BRAKE ACTUATOR ASSY (See page 32±54)
NG
5 INSPECT SENSOR INSTALLATION
(a) Check the sensor installation. OK:
There is no clearance between the sensor and rear
axle carrier.
NOTICE:
Check the speed sensor signal last (See page 05±699).
NG REPLACE SKID CONTROL SENSOR OR SUB±WIRE HARNESS
OK

BR3583
BR3582F00010
Rotor
+VSpeed Sensor
MagnetCoilNS
To ECU
Low Speed
High Speed
±V
± DIAGNOSTICSABS WITH EBD SYSTEM
05±709
AVENSIS REPAIR MANUAL (RM1018E)
DTC C0200/31 RIGHT FRONT SPEED SENSOR
DTC C0205/32 LEFT FRONT SPEED SENSOR
DTC C1330/35 RIGHT FRONT SPEED SENSOR CIRCUIT
DTC C1331/36 LEFT FRONT SPEED SENSOR CIRCUIT
CIRCUIT DESCRIPTION
The speed sensor detects wheel speed and transmits the ap-
propriate signals to the ECU. These signals are used for control
of the ABS control system. Each of the front and rear rotors has
48 serrations.
When the rotors rotate, the magnetic field generated by the per-
manent magnet in the speed sensor induces an AC voltage.
Since the frequency of this AC voltage changes in direct propor-
tion to the speed of the rotor, the frequency is used by the ECU
to detect the speed of each wheel.
DTC No.DTC Detecting ConditionTrouble Area
C0200/31
C0205/32
When any of the following 1. to 3. is detected :
1. Non±plausible high frequent signal, high wheel accelera-
tion or high gradient for 20 sec. with the brake pedal
applied or for 5 sec. when the brake pedal is not applied.
2. After the initial start or restart and when the vehicle
speed has reached 12 km/h (7 mph), the wheel speed of
0 km/h (0 mph) is detected.
3. Deviation of 2 wheel speed.

Right front and left front speed sensor

Speed sensor rotor
C1330/35
C1331/36Detecting abnormality in the resistance value of each speed
sensor.
Right front and left front speed sensor

Speed sensor circuit
HINT:
DTC No. C0200/31 and C1330/35 are for the right front speed sensor.
DTC No. C0205/32 and C1331/36 are for the left front speed sensor.
050XJ±11

C93876
21
W04200
Normal Signal Waveform
1 V / Division 2 m/s / Division GND
±
DIAGNOSTICS ABS WITH EBD SYSTEM
05±711
AVENSIS REPAIR MANUAL (RM1018E)
2INSPECT FRONT SPEED SENSOR
(a)Remove the fender liner.
(b)Disconnect the speed sensor connector.
(c)Measure resistance between terminals 1 and 2 of the
speed sensor connector.
OK:
Resistance: 1.2 to 1.6 k at 20 C (68 F)
(d)Measure resistance between each of terminals 1 and 2 of
the speed sensor connector and body ground.
OK:
Resistance: 1 M  or higher
NGREPLACE SPEED SENSOR FRONT RH
NGREPLACE SPEED SENSOR FRONT LH
NOTICE:
Check the speed sensor signal last (See page 05±699).
OK
3CHECK HARNESS AND CONNECTOR(FRONT SPEED SENSOR ± SKID CONTROL ECU)
(a)Check for an open or short circuit in harness and connector between each front speed sensor and the
skid control ECU (See page 01±32).
NGREPAIR OR REPLACE HARNESS ORCONNECTOR
OK
4INSPECT SPEED SENSOR AND SENSOR ROTOR SERRATIONS
(REFERENCE) INSPECTION USING OSCILLOSCOPE
(a)Connect the oscilloscope to the terminal FR+ ± FR± and FL+ ± FL± of the skid control ECU.
(b)Drive the vehicle at about 30 km/h (19 mph), and check
the signal waveform.
HINT:

As the vehicle speed (wheel revolution speed) increases,
a cycle of the waveform becomes shorter and the fluctua-
tion in the output voltage becomes greater.

When noise is identified in the waveform on the oscillo-
scope, error signals are generated due to the speed sen-
sor rotor's scratches, looseness or foreign matter depos-
ited on it.
OKREPLACE BRAKE ACTUATOR ASSY (See page 32±54)
NG

050XH±14
05±708
±
DIAGNOSTICS ABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still o\
ccurs, check the circuits for each
problem symptom in the order given in the table below and proceed to the releva\
nt troubleshooting page.
NOTICE:
When replacing Skid Control ECU, sensor or etc., turn the ignition switc\
h to OFF.
SymptomSuspect AreaSee page
ABS does not operate
1. Check the DTC reconfirming that the normal code is output.
2. IG power source circuit
3. Speed sensor circuit
4. Check the brake actuator with a hand±held tester. If there is malfunction, check the hydraulic circuit for
leakage.
5. When the above areas (1. to 4.) are all normal but the problem still occurs, replace the skid control ECU.05±699
05±709
05±713
32±53
ABS does not operate properly
1. Check the DTC reconfirming that the normal code is output.
2. Speed sensor circuit
3. Stop light switch circuit
4. Check the brake actuator with a hand±held tester. If there is malfunction, check the hydraulic circuit for
leakage.
5. When the above areas (1. to 4.) are all normal but the problem still occurs, replace the skid control ECU.05±699
05±709
05±713
32±53
ABS warning light malfunction1. ABS warning light circuit
2. Skid control ECU05±737 ±
DTC check cannot be performed
1. ABS warning light circuit
2. Tc terminal circuit
3. When the above areas (1. and 2.) are all normal but the problem still occurs, replace the skid control ECU.05±737
05±748
Speed sensor signal check cannot be performed1. D/G terminal circuit
2. Skid control ECU±
±

050XB±14
05±704
±
DIAGNOSTICS ABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
HINT:

Using SST 09843±18040, connect the terminal Tc and CG of the DLC3.

If malfunction is not found when inspecting parts, inspect the ECU and grou\
nd points for poor contact.

If a malfunction code is displayed during the DTC check, check the circuit\
listed for that code. For de-
tails of each code, refer to the ºSee pageº for respective ºDTC No.º\
in the DTC chart.

When 2 or more DTCs are detected, perform circuit inspection one by one unti\
l the problem is identi-
fied.
\f 

 \b\f 
C0200/31 (05±709)Right front wheel speed sensor signal malfunction
Right front speed sensor

Right front speed sensor rotor
C0205/32
(05±709)Left front wheel speed sensor signal malfunction
Left front speed sensor

Left front speed sensor rotor
C0210/33
(05±713)Right rear wheel speed sensor signal malfunction
Right rear speed sensor

Right rear speed sensor rotor
C0215/34
(05±713)Left rear wheel speed sensor signal malfunction
Left rear speed sensor

Left rear speed sensor rotor
C0226/21
(05±717)Open or short circuit in ABS actuator solenoid (SFR) circuit
SFRR or SFRH circuit
C0236/22
(05±717)Open or short circuit in ABS actuator solenoid (SFL) circuit
SFLR or SFLH circuit
C0246/23
(05±717)Open or short circuit in ABS actuator solenoid (SRR) circuit
SRRR or SRRH circuit
C0256/24
(05±717)Open or short circuit in ABS actuator solenoid (SRL) circuit
SRLR or SRLH circuit
C0273/13
(05±719)Open or short circuit in ABS motor relay circuit
ABS motor relay

ABS motor relay circuit
C0278/11
(05±722)Open or short circuit in ABS solenoid relay circuit
ABS solenoid relay

ABS solenoid relay circuit
C1237/37
(05±725)Speed sensor rotor is wrong number of teeth on one of the 4
wheels
Speed sensor

Sensor rotor

Speed sensor circuit
C1241/41
(05±726)Low battery voltage or abnormally high battery voltage

Battery

Charging system

Power source circuit
C1249/58
(05±730)Open circuit in stop light switch circuit
Stop light switch

Stop light switch circuit
C1300/62
(05±733)Malfunction in skid control ECU
Battery

Skid control ECU
C1330/35
(05±709)Open circuit in right front speed sensor
Right front speed sensor

Right front speed sensor circuit
C1331/36
(05±709)Open circuit in left front speed sensor
Left front speed sensor

Left front speed sensor circuit
C1332/38
(05±713)Open circuit in right rear speed sensor
Right rear speed sensor

Right rear speed sensor circuit
C1333/39
(05±713)Open circuit in left rear speed sensor
Left rear speed sensor

Left rear speed sensor circuit
C1350 / 51
(05±735)Pump motor is locked
Open circuit in pump motor ground
Brake actuator pump motor
Always ON
(05±737)Malfunction in ECU

Battery

Charging system

ABS warning light circuit

Power source circuit

Skid control ECU

0577T±04
F45095
ABS Warning Ligh t
BRAKE Warning
Light
C52361
Tc
CG
R01346
Norma l Code
Code 1 1 and 21
Code 11
4 sec. 0.25 sec.
2.5 sec.
1.5 sec. 0.25 sec.
2 sec.
0.5 sec . 0.5 sec.
Code 21
ON
OFF
ON
OFF
±
DIAGNOSTIC SABS WITH EBD SYSTEM
05±699
AVENSIS RE PAIR MANUAL (RM1018E)
PRE±CHECK
1. DIAGNOSI S SYSTEM
(a ) Release the parking brake leve r.
(b ) Check the warning lights.
Whe n the ignition switch is turned ON, check that the ABS
warnin g light and brake warning light come on for 3 sec.
HIN T:

Whe n the parking brake is applied or the level of the brake
flui d is lo w, the brake warning light comes on.

If the indicator check result is not normal, proceed to trou-
bleshootin g for the ABS warning light circuit ( See page
05±73 7 or 05±741 ) or brake warning light circuit ( See
pag e 05±744 ).
(c ) Without using hand±held tester:
Check the DTC.
(1 ) Usin g S S T, c onne ct te rmi na l T c a n d C G o f the
DLC3.
SS T 09843±18040
(2 ) Tur n the ignition switch ON.
(3 ) Rea d the DTC from the ABS warning light on the
combinatio n mete r.
HIN T:

If no code appears, inspect the diagnostic circuit or ABS
warning light circuit ( See page 05±737 or 05±744 ).

As an example, the blinking patterns for normal code and
code s 1 1 and 21 are shown on the left.
(4 ) Codes are explained in the code table on page
05±704.
If 2 or more DTCs are detected at the same time, the lowest
numbered DTC is displayed 1st. (5) After completing the check, remove the SST fromthe DLC3.
SST 09843±18040
(d) With using hand±held tester: Check the DTC.
(1) Read the DTC by following the prompts on the tes-ter screen.
HINT:
Please refer to the hand±held tester operator's manual for fur-
ther details.
(e) Without using hand±held tester: Clear the DTCs.
(1) Using SST, connect the terminal Tc and CG of theDLC3.
SST 09843±18040
(2) Turn the ignition switch ON.