check engine TOYOTA CAMRY 2000 Service Repair Manual

F00172
J/C
EC BRA
ABR
3
16 DLC1
Ts E
1
R±Y
II38
R±Y
A198
TsABS ECU
J22: (1MZ±FE)
J23: (5S±FE)
J/C
BRA
ABR
3
16 DLC1
Ts E
1
R±Y
II38
R±Y
A198
TsABS ECU
J22: (1MZ±FE)
J23: (5S±FE)
AB0119S08096
F00446DLC1 DLC1
DLC1
DLC1DLC1
Ts
DLC1 E1
ON
DI±534
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (DENSO Made)
769 Author: Date:
Ts Terminal Circuit
CIRCUIT DESCRIPTION
The sensor check circuit detects abnormalities in the speed sensor signal which cannot be detected with
the DTC check.
Connecting terminals Ts and E
1 of the DLC1 in the engine compartment starts the check.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminals Ts and E1 of DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals Ts and E
1 of DLC1.
OK:
Voltage: 10 ± 14 V
OK If ABS warning light does not blink even after Ts
and E
1 are connected, the ECU may be defec-
tive.
NG
DI03S±03

BR3890
F02201
DLC1
TsTc E1
BR3904
0.13 sec. 0.12 sec.
ON
OFF DI±540
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
775 Author: Date:
(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 3 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
HINT:
Cancellation cannot be done by removing the battery cable or
ECU±B fuse.
2. SPEED SENSOR SIGNAL
(a) Check the speed sensor signal.
(1) When the ignition switch is turned ON, check that
the ABS warning light goes on for 2 seconds.
(2) Turn the ignition switch OFF.
(3) Using SST, connect terminals Ts and E
1 of DLC1.
SST 09843 ± 18020
(4) Start the engine.
(5) 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±565).
(6) Drive vehicle straight forward.
HINT:
Drive vehicle at 45 ± 55 km/h (28 ± 34 mph) for several seconds.
If the brake is applied during the check, the check routine must
be started again.
(7) Stop the vehicle.
(8) Turn the ignition switch OFF.
(9) Disconnect the SST from terminals Ts and E
1 and,
connect the SST to terminals Tc and E
1 of DLC1.
SST 09843 ± 18020
(10) Turn the ignition switch ON.
(11) Read the number of blinks of the ABS warning light.

DI040±08
F03949
Actuator Assembly
BatteryActuator Assembly
MAINB±GF4 1 ALT
FL
Block 1F5 B±G3
ABS
12 3
Engine
Room R/B
No.3L
L
18
A6
+B+BA6
Valve Relay
Motor Relay17
A6 16 GND2
W±BEA
W±B
W±B 19
A6GND1 ECU DI±546
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
781 Author: Date:
CIRCUIT INSPECTION
DTC 11 ABS Solenoid Valve Relay Circuit
CIRCUIT DESCRIPTION
This relay supplies power to each ABS solenoid. After the ignition switch is turned ON, if the initial check is
OK, the relay goes on.
DTC No.DTC Detecting ConditionTrouble Area
11
Detection of any conditions from 1. through 3.:
1. 3 or more solenoid valves are shown faulty in response
and simultaneously valve supply voltage is detected
faulty.
2. Solenoid valve relay will not be switched OFF.
3. Valve relay is frozen in spite of its high valve relay sup-
ply voltage.

ABS solenoid valve relay

Valve supply voltage

ECU
Fail safe function:
If trouble occurs in the ABS solenoid valve relay circuit, the ECU cuts off current to the ABS solenoid valve
relay and prohibits ABS control.
WIRING DIAGRAM

F03949
Actuator Assembly
BatteryActuator Assembly
MAINB±GF4 1 ALT
FL
Block 1F5 B±G3
ABS
12 3
Engine
Room R/B
No.3L
L
18
A6
+B+BA6
Valve Relay
Motor Relay17
A6 16 GND2
W±BEA
W±B
W±B 19
A6GND1 ECU DI±550
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
785 Author: Date:
DTC 21, 22, 23, 24 ABS Solenoid Valve 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, 22, 23, 24Solenoid valve signal does not match to the check result.
Each solenoid valve
Fail safe function:
If trouble occurs in the actuator solenoid valve circuit, the ECU cuts off current to the ABS solenoid valve
relay and prohibits ABS control.
WIRING DIAGRAM
DI042±08

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

F00095
11ECU
R±Y
AA6 IK2
3
J/CDLC1
BR
Ts
J22: (1MZ±FE)16
EC5
E
1Ts
BRAII38
J23: (5S±FE)R±Y
11ECU
R±Y
AA6 IK2
3
J/CDLC1
BR
Ts
J22: (1MZ±FE)165
E
1Ts
BRAII38
J23: (5S±FE)R±Y B±Y (1MZ±FE)
LG (5S±FE)
AB0119S08096
F00446DLC1 DLC1
DLC1
DLC1
DLC1
Ts
DLC1 E1
ON
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
DI±569
804 Author: Date:
Ts Terminal Circuit
CIRCUIT DESCRIPTION
The sensor check circuit detects abnormalities in the speed sensor signal which cannot be detected with
the DTC check.
Connecting terminals Ts and E
1 of the DLC1 in the engine compartment starts the check.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminals Ts and E1 of DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals Ts and E
1 of DLC1.
OK:
Voltage: 10 ± 14 V
OK If ABS warning light does not blink even after Ts
and E
1 are connected, the ECU may be defec-
tive.
NG
DI04A±08

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

DI04J±04
F03951
ABS & TRAC Solenoid Relay
Battery
MAINB±G1F4 ALT1F5 B±G
FL
BlockW±B
EA 3 ABS
12
3 Engine Room R/B No. 3
1
2
336
4
53
3
3
W±L
A8
4ABS & TRAC
Actuator
ABS & TRAC
ECU
5
A8R
A1510
AST GR
GR±RABS & TRAC
ECU
11
A15
1
A15SR
R+
DLC1 DI±584
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
819 Author: Date:
CIRCUIT INSPECTION
DTC 11, 12 ABS & TRAC Solenoid Relay Circuit
CIRCUIT DESCRIPTION
This relay supplies power to each ABS & TRAC solenoid. After the ignition switch is turned ON, if the initial
check is OK, the relay goes on.
DTC No.DTC Detecting ConditionTrouble Area
11
Condition 1. to 3. are detected:
1. Malfunction of solenoid relay monitor
2. Battery voltage will not exceed more than 17.0 V within
2.16 sec.
3. Battery voltage will not become less than 9.5 V within
2.16 sec., or after the solenoid relay is ON and AST
voltage of ECU terminal does not become 8.0 V or more.

ABS & TRAC solenoid relay

ABS & TRAC solenoid relay circuit

ECU
12
Solenoid relay is OFF in the midst of premain routine, and
AST voltage of ECU terminal is 8.0 V or more, which con-
tinues for 2.04 sec. or more.
Fail safe function:
If any trouble occurs in the ABS & TRAC solenoid relay circuit, the ECU cuts off current to the ABS & TRAC
solenoid relay and prohibits ABS control and TRAC control.
WIRING DIAGRAM

F00182
(+)(±)
(+)(±)
(+)(±)(+)(±)
123
456
Engine Room R/B No. 3
F00055
ABS & TRAC
Solenoid
Relay
A15
AST
4
5
ABS & TRAC
Actuator
ECU
ABS & TRAC
Solenoid
Relay
A15
AST
4
5
ABS & TRAC
Actuator
ECU
ABS & TRAC
Solenoid
Relay
A15
AST
4
5
ABS & TRAC
Actuator
ECU
ABS & TRAC
Solenoid
Relay3
A8
A8
A15
AST
4
5
ABS & TRAC
Actuator
ECUEngine Room R/B No. 3
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±585
820 Author: Date:
INSPECTION PROCEDURE
1 Check voltage between terminals 1 and 2 of Engine Room R/B No. 3 (for ABS &
TRAC solenoid relay).
PREPARATION:
Remove ABS & TRAC solenoid relay from Engine Room R/B
No. 3.
CHECK:
Measure the voltage between terminals 1 and 2 of Engine
Room R/B No. 3 (for ABS & TRAC solenoid relay).
OK:
Voltage: 10 ± 14 V
NG Check and repair harness or connector.
OK
2 Check continuity between terminal 3 of ABS & TRAC solenoid relay and terminal
AST of ABS & TRAC ECU.
CHECK:
Check continuity between terminal 3 of Engine Room R/B No.
3 (for ABS solenoid relay) and terminal AST of ABS & TRAC
ECU.
OK:
Continuity
HINT:
There is a resistance of 4 ~ 6 W between terminals A8 ± 4 and
A8 ± 5 of ABS actuator.
NG Repair or replace harness or ABS & TRAC
actuator.
OK

F00049
1
2
34 (+) (±)
Engine Room
R/B No. 31
2
34 (+) (±)
Engine Room
R/B No. 31
2
34 (+) (±)
Engine Room
R/B No. 31
2
34 (+) (±)
Engine Room
R/B No. 3
F00056
ABS & TRAC
Motor
Relay
M2
A15
MT
32
2
3
ABS & TRAC
Actuator
ECU
ABS & TRAC
Motor
Relay
M2
A15
MT
32
2
3
ABS & TRAC
Actuator
ECU
ABS & TRAC
Motor
Relay
M2
A15
MT
32
2
3
ABS & TRAC
Actuator
ECU
A8
ABS & TRAC
Motor
Relay
A8 M2
A15
MT
32
2
3
ABS & TRAC
Actuator
ECUEngine Room R/B
No. 3
DI±588
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
823 Author: Date:
INSPECTION PROCEDURE
1 Check voltage between terminal 1 of Engine Room R/B No. 3 (for ABS & TRAC
motor relay) and body ground.
PREPARATION:
Remove ABS & TRAC motor relay from Engine Room R/B No.
3.
CHECK:
Measure voltage between terminal 1 of Engine Room R/B No.
3 (for ABS & TRAC motor relay) and body ground.
OK:
Voltage: 10 ± 14 V
NG Check and repair harness or connector.
OK
2 Check continuity between terminal 2 of ABS & TRAC motor relay and terminal
MT of ABS & TRAC ECU.
CHECK:
Check continuity between terminal 2 of Engine Room R/B No.
3 (for ABS & TRAC motor relay) and terminal MT of ABS &
TRAC ECU.
OK:
Continuity
HINT:
There is a resistance of 4 ~ 6 W between terminals A8 ± 2 and
A8 ± 3 of ABS & TRAC actuator.
NG Repair or replace harness or ABS & TRAC
actuator.
OK