Page 2977 of 4770

± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
DI±557
792 Author: Date:
DTC 37 Speed Sensor Rotor Faulty
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
37
Detection of any of conditions from 1. through 3.:
1. Occurrence of differential to some degree in the wheel
speed between the front and rear wheels of either left or
right side of the vehicle and the front left and right
wheels. (Detection of differential in mini tire size, spin-
ning wheel and decelerating wheel.)
2. Continuous ABS control for 60 sec. or more.
3. Interference on 1 or more wheels for 20 sec. with the
brake pedal depressed, or for 5 sec. when the brake
pedal is not depressed.
Speed sensor
Sensor rotor
ECU
INSPECTION PROCEDURE
1 Check sensor rotor (See page DI±552).
NG Replace sensor rotor.
OK
2 Check speed sensor (See page DI±552).
NG Replace speed sensor.
OK
3 Check for open and short circuit in harness and connector between speed sen-
sor and ECU (See page IN±31).
NG Repair or replace harness and connector.
OK
Check and replace ABS ECU.
DI044±04
Page 2978 of 4770

F03950
Actuator Assembly LB±R
IG1Actuator Assembly LB±R
IG1Actuator Assembly LB±R
IG1Actuator Assembly LB±R
IG1Actuator Assembly L
IG1
BatteryMAINB±G1
F4 ALTFL
Block 1F5 B±G3
ABS
12
Engine
Room R/B
No.3 3L
18
A617
A6
+B+B
Valve Relay
Motor Relay
GND2
A6
1615
A65
B±R
IK3B±R
C
C
J12 J/C
ECU
GND119
A6W±B
W±B
W±B
EAECU±IG
Instrument
Panel J/B 1J
9 DI±558
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
793 Author: Date:
DTC 41 Power Source Circuit
CIRCUIT DESCRIPTION
This is the power source for the ECU, hence the actuators.
DTC No.DTC Detecting ConditionTrouble Area
41
Vehicle speed at about 6 km/h (4 mph), low battery voltage
is less than 9.4 V at the time of non±operation of ABS
control or less than 8.8 V at the time of operation of ABS
control, and high battery voltage is more than 17.4 V.Battery
Charging system
Power source circuit
ECU
Fail safe function:
If trouble occurs in the power source circuit, the ECU cuts off current to the ABS solenoid valve relay and
prohibits ABS control.
WIRING DIAGRAM
DI045±08
Page 2979 of 4770
F00073
ECU±IG
Instrument
Panel J/BECU±IG
Instrument
Panel J/BECU±IG
Instrument
Panel J/B
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
DI±559
794 Author: Date:
INSPECTION PROCEDURE
1 Check ECU±IG fuse.
PREPARATION:
Remove ECU±IG fuse from Instrument Panel J/B.
CHECK:
Check continuity of ECU±IG fuse.
OK:
Continuity
NG Check for short circuit in all the harness and
components connected to ECU±IG fuse (See
the attached wiring diagram.)
OK
2 Check battery positive voltage.
OK:
Voltage: 10 ± 14 V
NG Check and repair the charging system
5S±FE engine: (See page CH±1)
1MZ±FE engine: (See page CH±1).
OK
Page 2980 of 4770
F00067
IG1
GND ON
(+) (±) IG1
GND ON
(+) (±) IG1
GND ON
(+) (±)IG1
GND ON
(+) (±)
F00068
LOCK
GND (+)
(±) LOCK
GND (+)
(±) LOCK
GND (+)
(±)LOCK
GND (+)
(±)
DI±560
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
795 Author: Date:
3 Check voltage between terminals IG1 and GND of ABS actuator connector.
PREPARATION:
Disconnect ABS actuator connector.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals IG1 and GND of ABS
actuator harness side connector.
OK:
Voltage: 10 ± 14 V
OK Check and replace ABS ECU.
NG
4 Check continuity between terminals GND of ABS actuator connector and body
ground.
CHECK:
Measure resistance between terminal GND of ABS actuator
harness side connector and body ground.
OK:
Resistance: 1 W or less
NG Repair or replace harness or connector.
OK
Check for open circuit in harness and connector between ABS ECU and ECU±IG
(See page IN±31).
Page 2981 of 4770
F00125
MAIN
Battery ALT F4B±R
F91B
1C
STOP
B±G4
1 Instrument Panel J/B
FL Block
1 7 WA6
21S 5IK3 J28
G±WECU
J27
1RSTP
Stop Light SwitchJ/C
7
G±R
H10Light Failure
Sensor R
W±B A
R9 R11 C14
BP BL 11R
2
4
G±W G±W G±WG±W 1
Instrument
Panel J/B
2 1
G±RG±R
W±B W±B
W±B H10R9
R11
J/C
A A High
Mounted
Stop
LightRight
Stop
LightLeft
Stop
Light
J405 2
12
2
5
W±B
W±B
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
DI±561
796 Author: Date:
DTC 58 Stop Light Switch Circuit
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
49
Stop light switch circuit is open, and stop light switch
voltage is in the level between 65 % or more and less
than 93 % of the battery voltage.Stop light switch
Stop light switch circuit
ECU
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check operation of stop light.
CHECK:
Check that stop light lights up when brake pedal is depressed and turns off when brake pedal is released.
NG Repair stop light circuit (See page BE±36).
OK
DI046±09
Page 2982 of 4770
F00069
STP (+) (±)
DI±562
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
797 Author: Date:
2 Check voltage between terminal STP of ABS actuator and body ground.
PREPARATION:
Disconnect ABS actuator connector.
CHECK:
Measure voltage between terminal STP of ABS actuator har-
ness side connector and body ground when brake pedal is de-
pressed.
OK:
Voltage: 8 ± 14 V
OK Check and replace ABS ECU.
NG
3 Check for open circuit in harness and connector between ABS ECU and stop
light switch (See page IN±31).
NG Repair or replace harness or connector.
OK
Proceed to next circuit inspection shown on problem symptoms table (See page DI±545).
Page 2983 of 4770
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
DI±563
798 Author: Date:
DTC 62 ABS ECU Malfunction
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
62ABS ECU continuously detects the proper operation of
ABS.Battery
ECU
Fail safe function:
If trouble occurs in the power source circuit, the ECU cuts off current to the ABS solenoid valve relay and
prohibits ABS control.
INSPECTION PROCEDURE
1 Is DTC output?
Check DTC on page DI±539.
YES Repair circuit indicated by the code output.
NO
2 Is normal code displayed?
YES Check for short circuit in harness and connec-
tor between DLC1 or DLC2 and ABS ECU
(See page IN±31).
NO
3 Does ABS warning light go off?
YES Check for open and short circuit in harness and
connector of Tc circuit between ECU and DLC2
or DLC1.
NO
DI047±06
Page 2984 of 4770
F00067
ON
IG1
(+) (±)
GND
DI±564
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
799 Author: Date:
4 Check voltage between terminals IG1 and GND of ABS actuator connector.
PREPARATION:
Disconnect ABS actuator connector.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals IG1 and GND of ABS
actuator harness side connector.
OK:
Voltage: 10 ± 14 V
NG Check for open and short circuit in harness and
connector between ECU±IG fuse and ABS ac-
tuator (See page IN±31).
OK
5 Check connection of ABS actuator connector.
CHECK:
Check the connection of the ABS actuator connector and check the ABS warning light goes off.
OK Repair or replace harness or connector.
NG
Check and replace ABS ECU.