Page 3010 of 4770
DI±590
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
825 Author: Date:
DTC 21 to 28 ABS & TRAC Actuator Solenoid Circuit
CIRCUIT DESCRIPTION
This solenoid goes on when signals are received from the ECU and controls the pressure acting on the wheel
cylinders thus controlling the braking force.
DTC No.DTC Detecting ConditionTrouble Area
21
ABS actuator
SFRR or SFRH circuit
ECU
22
ABS actuator
SFLR or SFLH circuit
ECU
23Conditions 1. and 2. or 3. continue for 0.48 sec. or more:
1 Recoveryprohibit runpulse is not output solenoid relay
ABS actuator
SRRR or SRRH circuit
ECU
24
1. Recovery prohibit run pulse is not output, solenoid relay
is ON, AST voltage of ECU terminal is 8.0 V or more,
and solenoid output has no change between the last
time and this time.ABS actuator
SRLR or SRLH circuit
ECU
25
time and this time.
2. Solenoid output is ON, pressure holding solenoid moni-
tor voltage is more than 1.0 V or pressure eduction sole-
noid monitor voltage is more than 1.5 V.
ABS actuator
SMC1 circuit
ECU
26
g
3. Solenoid output is OFF, solenoid monitor voltage is more
than ±1.0 V AST voltage of ECU.ABS actuator
SMC2 circuit
ECU
27
ABS actuator
SRC1 circuit
ECU
28
ABS actuator
SRC2 circuit
ECU
Fail safe function:
If any trouble occurs in the actuator solenoid circuit, the ECU cuts off current to the ABS & TRAC solenoid
relay and prohibits ABS control and TRAC control.
DI04L±04
Page 3013 of 4770
BR3583
BR3582F00010
RotorSpeed Sensor
Magnet
To ECU
+V
±VHigh Speed
Low Speed
CoilNS
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±593
828 Author: Date:
DTC31, 32, 33, 34Speed Sensor Circuit
CIRCUIT DESCRIPTION
The speed sensor detects wheel speed and sends the ap-
propriate signals to the ECU. These signals are used to control
the ABS and TRAC system. The front and rear rotors each have
48 serrations.
When the rotors rotate, the magnetic field emitted by the perma-
nent magnet in the speed sensor generates 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
31, 32, 33, 34
Detection of any of conditions from 1. through 3.:
1. ABS is in non±operation, wheel speed is 10 km/h or
more, one eighth of maximum wheel speed is greater
than the minimum wheel speed, one eighth of maximum
wheel speed is smaller than the rear maximum wheel
speed or momentary interruption of both the rear wheels
are shown in the 15 sec. or more continuously.
2. ABS is in non±operation, momentary interruption of
speed sensor occurs 7 times or more in the mean time
of switching the ignition switch ON and OFF or vehicle
speed is 20 km/h (12 mph) or more and the condition of
noise interference or non±noise interference occurs 75
times or more within 5 sec.
3. Vehicle is at a stop, malfunction signal of vehicle speed
sensor hardware open circuit is ON for 1.02 sec. contin-
uously since starting the checking of a certain vehicle.
Right front, left front, right rear, left rear speed sensor
Each speed sensor circuit
Speed sensor rotor
ECU
HINT:
DTC No. 31 is for the right front speed sensor.
DTC No. 32 is for the left front speed sensor.
DTC No. 33 is for the right rear speed sensor.
DTC No. 34 is for the left rear speed sensor.
Fail safe function:
If any trouble occurs in the speed sensor circuit, the ECU cuts off current to the ABS & TRAC solenoid relay
and prohibits ABS control and TRAC control.
DI1JP±03
Page 3022 of 4770
F00062
ECMABS & TRAC ECU
NEONEO
E8
A16BR±W15 ECMABS & TRAC ECU
NEONEOA16BR±W15 ECMABS & TRAC ECU
NEONEOA16BR±W15 ECMABS & TRAC ECU
NEONEOA16BR±W15
ECMABS & TRAC ECU
NEONEO
A16BR±W15
16
DI±602
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
837 Author: Date:
DTC 44 NE Signal Circuit
CIRCUIT DESCRIPTION
The ABS & TRAC ECU receives engine speed signals (NE signals) from the ECM.
DTC No.DTC Detecting ConditionTrouble Area
44
Condition 1. or 2. is detected:
1. TRAC is in operation and engine speed is 0 rpm contin-
ues for 2.4 sec. or more.
2. TRAC is in non±operation, sift lever is not in P or N posi-
tion, both the front right and left wheels' speed is 30
km/h (19 mph) or more, engine speed is 0 rpm and does
not have communication malfunction, and malfunction
information of engine system is OFF.
NEO circuit
ECM
ECU
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check for open and short circuit in harness and connector between terminal
NEO of ABS & TRAC ECU and terminal NEO of ECM (See page IN±31).
NG Repair or replace harness or connector.
OK
DI04P±04
Page 3049 of 4770
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±629
864 Author: Date:
7. RELEASE METHOD OF AIRBAG ACTIVATION PRE-
VENTION MECHANISM
An airbag activation prevention mechanism is built into the con-
nector for the squib circuit of the SRS.
When release of the airbag activation prevention mechanism is
directed in the troubleshooting procedure, as shown in the il-
lustration of the connectors on the next pages, insert paper
which is the same thickness as the male terminal, between the
terminal and the short spring.
CAUTION:
Never release the airbag activation prevention mechanism
on the steering wheel pad connector.
NOTICE:
Do not release the airbag activation prevention mech-
anism unless specifically directed by the trouble-
shooting procedure.
If the inserted paper is too thick the terminal and short
spring may be damaged, so always use paper with
the same thickness as the male terminal.
Page 3050 of 4770
H08316
TMC made :
Side Airbag Assembly (LH)
(Squib) Side Airbag Sensor (LH)Side Airbag Sensor (RH)Side Airbag Assembly (RH)
(Squib)
Seat Belt
Pretensioner (RH)
Airbag Sensor
AssemblyFront Passenger Airbag Assembly (Squib)
Spiral Cable
No.1 J/B 2
37 8
10
11
12
13
1
4
5
6
9
Steering Wheel
Pad (Squib) Front Airbag Sensor (RH)
Front Airbag Sensor (LH)
Seat Belt
Pretensioner (LH) 14
15
16
DI±630
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
865 Author: Date:
Page 3051 of 4770
H08247
Airbag Sensor
AssemblySide Airbag Assembly (RH)
(Squib)
Seat Belt
Pretensioner (RH)
Side Airbag Sensor (RH)
Front Passenger Airbag
Assembly (Squib)
Spiral Cable
Steering Wheel
Pad (Squib)
No.1 J / B
Side Airbag Sensor (LH)
Side Airbag Assembly (LH)
(Squib)1
2
3
4
5
6
7
14
9
10
1112
13
8
15 TMMK made :
Seat Belt
Pretensioner (LH)
16
17
18
Front Airbag Sensor (RH)
Front Airbag Sensor (LH)
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±631
866 Author: Date:
Page 3053 of 4770
DI1AZ±04
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±633
868 Author: Date:
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table
below (Proceed to the page given for that circuit.).
DTC No.
(See Page)Detection ItemTrouble AreaSRS
Warning Light
B0100/13
(DI±640)
Short in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0101/14
(DI±645)
Open in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0102/11
(DI±649)
Short in D squib circuit (to Ground)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0103/12
(DI±653)
Short in D squib circuit (to B+)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Wire harness
ON
B0105/53
(DI±657)Short in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0106/54
(DI±661)Open in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0107/51
(DI±664)Short in P squib circuit (to Ground)Front passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
B0108/52
(DI±667)Short in P squib circuit (to B+)Front passenger airbag assembly (squib)
Airbag sensor assembly
Wire harness
ON
TMC made:
B0110/43
(DI±670)Short in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
TMMK made:
B0110/43
(DI±674)Short in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
TMC made:
B0111/44
(DI±679)Open in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
TMMK made:
B0111/44
(DI±682)Open in side squib (RH) circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Sub wire harness
Blink
TMC made:
B0112/41
(DI±686)Short in side squib (RH) circuit
(to Ground)Side airbag assembly RH (squib)
Airbag sensor assembly
Wire harness
Blink
Page 3056 of 4770
DI1B0±04
H08283
Combination Meter
(Warning Light)Steering Wheel Pad
(with Airbag)
Airbag Sensor AssemblyFront Passenger
Airbag Assembly
Side Airbag Assembly
(LH)
Side Airbag Sensor
Assembly (LH)
Seat Belt
Pretensioner (LH)Side Airbag Assembly (RH)
Side Airbag Sensor Assembly (RH)
Seat Belt
Pretensioner (RH) Front Airbag
Sensor (LH)Front Airbag Sensor (RH)
Spiral Cable
DI±636
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
871 Author: Date:
PARTS LOCATION
