Page 2993 of 4770
DI04D±02
ABS & TRAC Check Sheet
Inspector 's
Name:
Customer 's Name
Date Vehicle
Brought InRegistration Year Registration No.
Frame No.
Odometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs/ /
ContinuousIntermittent ( times a day)
Remains ONDoes not Light Up
DTC Check1st Time
2nd TimeNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles
Check ItemNormal
ABS does not operate.
ABS Warning Light
AbnormalABS does not operate efficiently.
Malfunction
Indicator LightMalfunction Code (Code )
TRAC does not operate. (Wheels spin when starting rapidly.)
TRAC OFF Indicator
Light Abnormal
SLIP Indicator
Light Abnormal
Remains ON
Remains ON Does not Light UpBlinks Does not Light Up
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±573
808 Author: Date:
CUSTOMER PROBLEM ANALYSIS CHECK
Page 2994 of 4770

DI04E±04
F00075
S-17-1 Iei-23-1-A
F00041
DLC2
Tc E
1
DLC1
E
1Tc
R01346
Normal Code
0.25 sec.
0.25 sec. 2 sec.
ON
OFF
ON
OFF0.5 sec. 0.5 sec.
Code 11 and 21
4 sec.1.5 sec.
2.5 sec.
Code 11 Code 21
DI±574
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
809 Author: Date:
PRE±CHECK
1. DIAGNOSIS SYSTEM
(a) Check the indicator.
When the ignition switch is turned ON, check that the ABS
warning light, TRAC OFF indicator light and SLIP indica-
tor light go on for 3 seconds.
HINT:
If the indicator check result is not normal, proceed to trouble-
shooting for the ABS warning light circuit, TRAC OFF indicator
light circuit and SLIP indicator light circuit
(See page DI±612, DI±617, DI±620).
(b) Check the DTC.
(1) Using SST, connect terminals Tc and E
1 of DLC2 or
DLC1.
SST 09843 ± 18020
(2) Turn the ignition switch ON.
(3) Read the DTC from the ABS warning light and
TRAC OFF indicator light on the combination meter.
HINT:
If no code appears, inspect the diagnostic circuit or ABS warn-
ing light circuit, TRAC OFF indicator light circuit
(See page DI±621 or DI±612, DI±617).
As an example, the blinking patterns for normal code and codes
11 and 21 are shown on the left.
(4) Codes are explained in the code table on page
DI±578.
(5) After completing the check, disconnect terminals Tc
and E
1, and turn off the display.
If 2 or more malfunctions are indicated at the same time the low-
est numbered DTC will be displayed 1st.
Page 2995 of 4770

H07517
TOYOTA
Hand±held Tester
DLC2
BR3890
N09348
Hand±held Tester
Break±out±boxECUTOYOTA
TOYOTA
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±575
810 Author: Date:
(c) Using TOYOTA hand±held tester, check the DTC.
(1) Hook up the TOYOTA hand±held tester to the
DLC2.
(2) Read the DTC by following the prompts on the tes-
ter screen.
Please refer to the TOYOTA hand±held tester oper-
ator 's manual for further details.
(d) Clear the DTC.
(1) Using SST, connect terminals Tc and E
1 of DLC2 or
DLC1.
SST 09843 ± 18020
(2) Turn the ignition switch ON.
(3) Clear the DTC stored in ECU by depressing the
brake pedal 8 or more times within 5 seconds.
(4) Check that the warning light shows the normal
code.
(5) Remove the SST from the terminals of DLC2 or
DLC1.
SST 09843 ± 18020
(e) Using TOYOTA break±out±box and TOYOTA hand±held
tester, measure the ECU terminal values.
(1) Hook up the TOYOTA hand±held tester and
TOYOTA break±out±box to the vehicle.
(2) Read the ECU input/output values by following the
prompts on the tester screen.
HINT:
TOYOTA hand±held tester has a ºSnapshotº function. This re-
cords the measured values and is effective in the diagnosis of
intermittent problems.
Please refer to the TOYOTA hand±held tester/TOYOTA break±
out±box operator's manual for further details.
Page 2996 of 4770

F02201
DLC1
TsTc E
1
BR3904
0.13 sec. 0.13 sec.
ON
OFF
BR3893
Malfunction Code (Example Code 72, 76)
72 67
ON
OFF
0.5 sec. 0.5 sec. 0.5 sec. 0.5 sec.1.5 sec.
2.5 sec.4 sec.
Repeat DI±576
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
811 Author: Date:
2. SPEED SENSOR SIGNAL
(a) Check the speed sensor signal.
(1) Turn the ignition switch OFF.
(2) Using SST, connect terminals Ts and E
1 of DLC1.
SST 09843 ± 18020
(3) Start the engine.
(4) Check that the ABS warning light blinks.
HINT:
If the ABS warning light does not blink, inspect the ABS warning
light circuit (See page DI±612).
(5) Drive vehicle straight forward.
HINT:
Drive vehicle faster than 45 km/h (28 mph) for several seconds.
(6) Stop the vehicle.
(7) Using SST, connect terminals Tc and E
1 of DLC1.
SST 09843 ± 18020
(8) Read the number of blinks of the ABS warning light.
HINT:
See the list of DTC shown on the next page.
If 2 or more malfunctions are indicated at the same time,
the lowest numbered code will be displayed 1st.
If every sensor is normal, a normal code is output (A cycle
of 0.25 sec. ON and 0.25 sec. OFF is repeated).
(9) After doing the check, disconnect the SST from ter-
minals Ts and E
1, Tc and E1 of DLC1, and turn igni-
tion switch OFF.
SST 09843 ± 18020
Page 2997 of 4770

H07517
TOYOTA
Hand±held Tester
DLC2
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±577
812 Author: Date:
(b) Using TOYOTA hand±held tester, check the DTC.
(1) Do step 1. ~ 6. on the previous page.
(2) Hook up the TOYOTA hand±held tester to the
DLC2.
(3) Read the DTC by following the prompts on the tes-
ter screen.
Please refer to the TOYOTA hand±held tester oper-
ator 's manual for further details.
DTC of speed sensor check function:
Code No.DiagnosisTrouble Area
71Low output voltage of right front speed sensor
Right front speed sensor
Sensor installation
Right front speed sensor rotor
72Low output voltage of left front speed sensor
Left front speed sensor
Sensor installation
Left front speed sensor rotor
73Low output voltage of right rear speed sensor
Right rear speed sensor
Sensor installation
Right rear speed sensor rotor
74Low output voltage of left rear speed sensor
Left rear speed sensor
Sensor installation
Left rear speed sensor rotor
75Abnormal change in output voltage of right front speed
sensorRight front speed sensor rotor
76Abnormal change in output voltage of left front speed
sensorLeft front speed sensor rotor
77Abnormal change in output voltage of right rear speed
sensorRight rear speed sensor rotor
78Abnormal change in output voltage of left rear speed sensorLeft rear speed sensor rotor
Page 2998 of 4770

DI04F±04
DI±578
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
813 Author: Date:
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Using SST 09843 ±18020, connect the terminals Tc and E1.
If a malfunction code is displayed during the DTC check, check the circuit listed for the code. For details
of each code, turn to the page referred to under the ºSee pageº for respective ºDTC No.º in the DTC
chart.
DTC No.
(See Page)Detection ItemTrouble Area
11
(DI±584)Open circuit in ABS & TRAC solenoid relay circuitABS & TRAC solenoid relay
ABS & TRAC l id l i it12
(DI±584)Short circuit in ABS & TRAC solenoid relay circuit
ABS & TRAC solenoid relay circuit
ECU
13
(DI±587)Open circuit in ABS & TRAC motor relay circuitABS & TRAC motor relay
ABS & TRAC t l i it14
(DI±587)Short circuit in ABS & TRAC motor relay circuit
ABS & TRAC motor relay circuit
ECU
21
(DI±590)Open or short circuit in right front solenoid circuit
ABS & TRAC actuator
SFRR or SFRH circuit
ECU
22
(DI±590)Open or short circuit in left front solenoid circuit
ABS & TRAC actuator
SFLR or SFLH circuit
ECU
23
(DI±590)Open or short circuit in right rear solenoid circuit
ABS & TRAC actuator
SRRR or SRRH circuit
ECU
24
(DI±590)Open or short circuit in left rear solenoid circuit
ABS & TRAC actuator
SRLR or SRLH circuit
ECU
25
(DI±590)Open or short circuit in SMC1 circuit
ABS & TRAC actuator
SMC1 circuit
ECU
26
(DI±590)Open or short circuit in SMC2 circuit
ABS & TRAC actuator
SMC2 circuit
ECU
27
(DI±590)Open or short circuit in SRC1 circuit
ABS & TRAC actuator
SRC1 circuit
ECU
28
(DI±590)Open or short circuit in SRC2 circuit
ABS & TRAC actuator
SRC2 circuit
ECU
31
(DI±593)Right front wheel speed sensor signal malfunction
32
(DI±593)Left front wheel speed sensor signal malfunctionRight front, left front, right rear and left rear speed sensor
Each speed sensor circuit
33
(DI±593)Right rear wheel speed sensor signal malfunction
Each s eed sensor circuit
Speed sensor rotor
ECU
34
(DI±593)Left rear wheel speed sensor signal malfunction
41
(DI±598)Low battery positive voltage or abnormally high battery
positive voltage
Battery
Charging system
Power source circuit
ECU
Page 2999 of 4770
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±579
814 Author: Date:
43*
(DI±601)Malfunction in ABS control systemABS control system
44*
(DI±602)Open or short circuit in NE signal circuit
NEO circuit
ECM
ECU
49
(DI±604)Open circuit in stop light switch circuit
Stop light switch
Stop light switch circuit
ECU
51
(DI±606)Pump motor is lockedABS pump motor
53*
(DI±608)Malfunction in ECM communication circuit
TRC+ or TRC ± circuit
EFI+ or EFI± circuit
ECM
ECU
61*
(DI±609)Malfunction in engine control systemEngine control system
Always ON
(DI±610)Malfunction in ECUECU
*: TRAC OFF indicator light blinking
Page 3000 of 4770
DI04G±04
F01177
SLIP Indicator Light
TRAC OFF Indicator Light
ABS Warning Light
DLC1
DLC2
Rear Speed Sensor
Sensor Rotor ABS & TRAC ActuatorABS & TRAC ECU
TRAC OFF Switch
ABS & TRAC
Solenoid Relay
ABS & TRAC
Motor RelaySensor Rotor
Front Speed Sensor
Stop Light Switch Front Speed Sensor
DI±580
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
815 Author: Date:
PARTS LOCATION