1999 TOYOTA CAMRY light

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

± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±579
814 Author: Date:
43*
(DI±601)Malfunction in ABS control system
ABS 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 locked
ABS 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 system
Engine control system
Always ON
(DI±610)Malfunction in ECU
ECU
*: TRAC OFF indicator light blinking

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

DI1JO±03
R05698
A15 A16A17
1 2 3 4 5 6 7 8 9 10
21 11 12 13
14
15 16 17 18 19
20 22 23 24 25 261 2 3 4 5
4 6 7
8
9 10 11 12 13 14 16 151
2 3 5 6
7 8
9 10 11 12
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±581
816 Author: Date:
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
IG1 (A16 ± 8) ± GND (A15 ±
15, A17 ± 9, 10)B±R e W±BIG switch ON10 ± 14
R+ (A15 ± 1) ± SR (A15 ± 11)GR±R e GRIG switch ON, ABS warning light OFF9 ± 14
R+ (A15 ± 1) ± MR (A15 ± 24)GR±R e GR±LIG switch ONBelow 1.0
SFRR (A15 ± 26) ± GND (A15
± 15, A17 ± 9, 10)W±R e W±BIG switch ON, ABS warning light OFF10 ± 14
SFRH (A15 ± 13) ± GND (A15
± 15, A17 ± 9, 10)R±B e W±BIG switch ON, ABS warning light OFF10 ± 14
SFLR (A17 ± 1) ± GND (A15 ±
15, A17 ± 9, 10)W±L e W±BIG switch ON, ABS warning light OFF10 ± 14
SFLH (A17 ± 2) ± GND (A15 ±
15, A17 ± 9, 10)L±B e W±BIG switch ON, ABS warning light OFF10 ± 14
SRRR (A17 ± 7) ± GND (A15 ±
15, A17 ± 9, 10)R±G e W±BIG switch ON, ABS warning light OFF10 ± 14
SRRH (A17 ± 8) ± GND (A15 ±
15, A17 ± 9, 10)W±R e W±BIG switch ON, ABS warning light OFF10 ± 14
SRLR (A15 ± 12) ± GND (A15 ±
15, A17 ± 9, 10)LG±B e W±BIG switch ON, ABS warning light OFF10 ± 14
SRLH (A15 ± 25) ± GND (A15 ±
15, A17 ± 9, 10)G±Y e W±BIG switch ON, ABS warning light OFF10 ± 14
AST (A15 ± 10) ± GND (A15 ±
15, A17 ± 9, 10)R e W±BIG switch ON, ABS warning light OFF10 ± 14
WA (A16 ± 4) ± GND (A15 ± 15,GBWBIG switch ON, ABS warning light ONBelow 2.0WA (A16 4) GND (A15 15,
A17 ± 9, 10)G±B e W±BIG switch ON, ABS warning light OFF10 ± 14
STP (A16 ± 16) ± GND (A15 ±GWWBStop light switch OFFBelow 1.5STP (A16 16) GND (A15
15, A17 ± 9, 10)G±W e W±BStop light switch ON8 ± 14
D/G (A15 ± 22) ± GND (A15 ±
15, A17 ± 9, 10)R±L e W±BIG switch ON, ABS warning light ON10 ± 14
Tc (A15 ± 9) ± GND (A15 ± 15,
A17 ± 9, 10)LG±R e W±BIG switch ON8 ± 14
Ts (A15 ± 23) ± GND (A15 ± 15,
A17 ± 9, 10)R±Y eW±BIG switch ON8 ± 14
FR+ (A15 ± 17) ± FR± (A15 ±
18)W e BIG switch ON, slowly turn right front wheelAC generation
FL+ (A15 ± 5) ± FL± (A15 ± 4)R e GIG switch ON, slowly turn left front wheelAC generation
RR+ (A16 ± 9) ± RR± (A16 ±
10)W e BIG switch ON, slowly turn right rear wheelAC generation
RL+ (A16 ± 2) ± RL± (A16 ± 1)R e GIG switch ON, slowly turn left rear wheelAC generation

DI±582
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
817 Author: Date:
MT (A15 ± 14) ± GND (A15 ±
15, A17 ± 9, 10)R±W e W±BIG switch ONBelow 1.5
SRC1 (A17 ± 5) ± GND (A15 ±
15, A17 ± 9, 10)B±R e W±BIG switch ON, TRAC OFF indicator light OFF10 ± 14
SRC2 (A17 ± 6) ± GND (A15 ±
15, A17 ± 9, 10)B±Y e W±BIG switch ON, TRAC OFF indicator light OFF10 ± 14
SMC1 (A17 ± 12) ± GND (A15
± 15, A17 ± 9, 10)Y±R e W±BIG switch ON, TRAC OFF indicator light OFF10 ± 14
SMC2 (A17 ± 6) ± GND (A15 ±
15, A17 ± 9, 10)Y±B e W±BIG switch ON, TRAC OFF indicator light OFF10 ± 14
NEO (A16 ± 15) ± GND (A15 ±
15, A17 ± 9, 10)BR±W e W±BIdlingPulse generation
EFI+ (A16 ± 6) ± GND (A15 ±
15, A17 ± 9, 10)W e W±BIG switch ONPulse generation
EFI± (A16 ± 14) ± GND (A15 ±
15, A17 ± 9, 10)B e W±BIG switch ONPulse generation
TRC+ (A16 ± 13) ± GND (A15 ±
15, A17 ± 9, 10)G e W±BTRAC control activePulse generation
TRC± (A16 ± 5) ± GND (A15 ±
15, A17 ± 9, 10)L e W±BTRAC control activePulse generation
IND (A16 ± 3) ± GND (A15 ±LGWBIG switch ON, SLIP indicator light ONBelow 2.0IND (A16 3) GND (A15
15, A17 ± 9, 10)LG e W±BIG switch ON, SLIP indicator light OFF10 ± 14
WT (A16 ± 12) ± GND (A15 ±LWBIG switch ON, TRAC OFF indicator light ONBelow 2.0WT (A16 12) GND (A15
15, A17 ± 9, 10)L e W±BIG switch ON, TRAC OFF indicator light OFF10 ± 14
CSW (A16 ± 11) ± GND (A15 ±LGWBIG switch ON, TRAC cut switch pushed inBelow 2.0CSW (A16 11 ) GND (A15
15, A17 ± 9, 10)LG e W±BIG switch ON, TRAC cut switch released8 ± 14

DI04I±04
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±583
818 Author: Date:
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still occurs, check the circuits for each
problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
SymptomSuspect AreaSee page
ABS does not operate.
Only when 1. to 4. are all normal and the problem is still
occurring, replace the
ABS & TRAC ECU.
1. Check the DTC reconfirming that the normal code is
output.
2. IG power source circuit
3. Speed sensor circuit
4. Check the ABS & TRAC actuator with a checker. If ab-
normal, check the hydraulic circuit for leakage
(See page DI±623).
DI±574
DI±598
DI±593
BR±61
ABS does not operate efficiently.
Only when 1. to 4. are all normal and the problem is still
occurring, replace the
ABS & TRAC ECU.
1. Check the DTC reconfirming that the normal code is
output.
2. Speed sensor circuit.
3. Stop light switch circuit.
4. Check the ABS & TRAC actuator with a checker. If ab-
normal, check the hydraulic circuit for leakage
(See page DI±623).
DI±574
DI±593
DI±604
BR±61
ABS warning light abnormal.1. ABS warning light circuit
2. ABS & TRAC ECUDI±612
DI±610
DTC check cannot be done.
Only when 1. and 2. are all normal and the problem is still
occurring, replace the ABS & TRAC ECU.
1. ABS warning light circuit
2. TRAC OFF indicator light circuit
3. Tc terminal circuit
DI±612
DI±617
DI±621
Speed sensor signal check cannot be done.1. Ts terminal circuit
2. ABS & TRAC ECUDI±615
DI±610
TRAC does not operate.
Only when inspection circuits for each problem symptom
are all normal and the problem is still occurring, replace the
ABS & TRAC ECU.
1. Check the DTC, reconfirming that the normal code is
output.
2. IG power source circuit
3. Check the hydraulic circuit for leakage
4. Speed sensor circuit
DI±574
DI±598
DI±623
DI±593
SLIP indicator light abnormal.SLIP indicator light circuitDI±620
TRAC OFF indicator light abnormal.
Only when inspection circuits for each problem symptom
are all normal and the problem is still occurring, replace the
ABS & TRAC ECU.
1. TRAC OFF indicator light circuit
2. TRAC cut switch circuit
DI±617
DI±617