2000 TOYOTA CAMRY ignition

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).

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.

F00120
LG±RECU
A6 IK212 J/C
J3
E1
J23: (5S±FE)4
J22: (1MZ±FE)B Tc
A12
3LG±R LG±R
LG±RB B
Tc
E
1J/C
A ADLC2
BR
DLC1
11II3
ECBR
BR
BR311
BRTc II3J/C
J8
J7C
B 6
LG±RECU
A6 IK212 J/C
J3
E1
J23: (5S±FE)4
J22: (1MZ±FE)B Tc
A12
3LG±R LG±R
LG±RB B
Tc
E
1J/C
A ADLC2
BR
DLC1
11II3
ECBR
BR
BR311
BRTc II3J/C
J8
J7C
B 6
P±B (1MZ±FE)
LG±R (5S±FE)
F02607 F00445F02612
DLC2
DLC1
Tc E
1
Tc E
1
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
DI±567
802 Author: Date:
Tc Terminal Circuit
CIRCUIT DESCRIPTION
Connecting between terminals Tc and E1 of the DLC1 or the DLC2 causes the ECU to display the DTC by
flashing the ABS warning light.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminals Tc and E1 of DLC2 or DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals Tc and E
1 of DLC2 or
DLC1.
OK:
Voltage: 10 ± 14 V
OK If ABS warning light does not blink even after Tc
and E
1 are connected, the ECU may be defec-
tive.
NG
DI049±08

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

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.

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.

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