1999 TOYOTA CAMRY warning

DI03B±02
ABS Check Sheet
Inspector 's
Name:
Customer 's Name
Date Vehicle
Brought InRegistration Year Registration No.
Frame No.
Odometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs/ /
ContinuousIntermittent ( times a day)
Remains ONDoes not Light Up
DTC Check1st Time
2nd TimeNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles
ABS does not operate.
ABS Warning Light
AbnormalABS does not operate efficiently. DI±176
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
CUSTOMER PROBLEM ANALYSIS CHECK

F00047
DI03C±04
F00006
DLC1Short Pin
S-17-1 Iei-23-1-A
F00041
DLC2 DLC1
Tc E1
E1Tc
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
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
DI±177
PRE±CHECK
1. DIAGNOSIS SYSTEM
(a) Check the indicator.
When the ignition switch is turned ON, check that the ABS
warning light goes on for 3 seconds.
HINT:
If the indicator check result is not normal, proceed to trouble-
shooting for the ABS warning light circuit (See page DI±213).
(b) Check the DTC.
(1) Disconnect the short pin from DLC1.
(2) Using SST, connect terminals Tc and E
1 of DLC2 or
DLC1.
SST 09843 ± 18020
(3) Turn the ignition switch ON.
(4) Read the DTC from the ABS warning light on the
combination meter.
HINT:

If no code appears, inspect the diagnostic circuit or ABS
warning light circuit (See page DI±216 or DI±213).

As an example, the blinking patterns for normal code and
codes 11 and 21 are shown on the left.
(5) Codes are explained in the code table on page
DI±181.
(6) 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
F00006DLC1Short Pin
N09348
Hand±held Tester
Break±out±boxECUTOYOTA
TOYOTA DI±178
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
(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 and remove the short pin from 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
(6) Connect the short pin to DLC1.
(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 E1
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
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
DI±179
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±213).
(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 every sensor is normal, a normal code is output (A cycle
of 0.25 sec. ON and 0.25 sec. OFF is repeated).

If 2 or more malfunctions are indicated at the same time,
the lowest numbered code will be displayed 1st.
(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

DI03E±04
F01172
Sensor Rotor
ABS Warning Light
ABS ECU
DLC 1
Front Speed Sensor
ABS Actuator
ABS Solenoid
Relay
ABS Motor Relay
Sensor RotorFront Speed
Sensor
Stop Light SwitchDLC 2
Rear Speed Sensor DI±182
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
PARTS LOCATION

DI1JL±03
F07155
A13
A14
1 2 3 4 856 7 9 10 11 12 13
14 15 16 17 18 19 20 21 22 1 2 3 4 5 6
7 8 9 10 11 1223 24 25 26
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
DI±183
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
IG1 (A14 ± 13) ± GND (A14 ±
12, 25)B±R e W±BIG switch ON10 ± 14
R+ (A14 ± 26) ± SR (A13 ± 7)GR±R eGRIG switch ON, ABS warning light OFF9 ± 14
R+ (A14 ± 26) ± MR (A13 ± 1)GR±R eGR±LIG switch ONBelow 1.0
SFRR (A14 ± 1) ± GND (A14 ±
12, 25)W±R e W±BIG switch ON, ABS warning light OFF10 ± 14
SFRH (A14 ± 2) ± GND (A14 ±
12, 25)R±B e W±BIG switch ON, ABS warning light OFF10 ± 14
SFLR (A13 ± 6) ± GND (A14 ±
12, 25)W±L e W±BIG switch ON, ABS warning light OFF10 ± 14
SFLH (A13 ± 5) ± GND (A14 ±
12, 25)L±B e W±BIG switch ON, ABS warning light OFF10 ± 14
SRRR (A13 ± 12) ± GND (A14
± 12, 25)R±G e W±BIG switch ON, ABS warning light OFF10 ± 14
SRRH (A13 ± 11) ± GND (A14
± 12, 25)W±R e W±BIG switch ON, ABS warning light OFF10 ± 14
SRLR (A14 ± 14) ± GND (A14 ±
12, 25)LG±B e W±BIG switch ON, ABS warning light OFF10 ± 14
SRLH (A14 ± 15) ± GND (A14 ±
12, 25)G±Y e W±BIG switch ON, ABS warning light OFF10 ± 14
WA (A14 ± 11) ± GND (A14 ±GBWBIG switch ON, ABS warning light ONBelow 2.0WA (A14 11 ) GND (A14
12, 25)G±B e W±BIG switch ON, ABS warning light OFF10 ± 14
STP (A14 ± 5) ± GND (A14 ±GWWBStop light switch OFFBelow 1.5STP (A14 5) GND (A14
12, 25)G±W e W±BStop light switch ON8 ± 14
D/G (A14 ± 24) ± GND (A14 ±
12, 25)R±L e W±BIG switch ON, ABS warning light OFF10 ± 14
Tc (A14 ± 8) ± GND (A14 ± 12,
25)LG±R e W±BIG switch ON8 ± 14
Ts (A14 ± 21) ± GND (A14 ± 12,
25)R±Y e W±BIG switch ON8 ± 14
FR+ (A13 ± 3) ± FR± (A13 ± 9)W e BIG switch ON, slowly turn right front wheelAC generation
FL+ (A13 ± 8) ± FL± (A13 ± 2)R e GIG switch ON, slowly turn left front wheelAC generation
RR+ (A14 ± 10) ± RR± (A14 ±
23)W eBIG switch ON, slowly turn right rear wheelAC generation

DI03G±05
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
DI±185
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 ECU.
2. Check the DTC reconfirming that the normal code is
output.
3. IG power source circuit.
4. Speed sensor circuit.
5. Check the ABS actuator with a checker.
If abnormal, check the hydraulic circuit for leakage
(See page *DI±536).
DI±177
DI±204
DI±198
*BR±50
ABS does not operate efficiently
Only when 1. to 4. are all normal and the problem is still
occurring, replace the ABS 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 actuator with a checker.
If abnormal, check the hydraulic circuit for leakage
(See page *DI±536).
DI±177
DI±198
DI±207
*BR±50
ABS warning light abnormal1. ABS warning light circuit
2. ABS ECUDI±213
DI±211
DTC check cannot be done
Only when 1. and 2. are all normal and the problem is still
occurring, replace the ABS ECU.
1. ABS warning light circuit
2. Tc terminal circuit
DI±213
DI±216
Speed sensor signal check cannot be done1. Ts terminal circuit
2. ABS ECUDI±218
DI±211
*See Pub. No. RM654U

± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
DI±211
DTC Always ON ABS ECU Malfunction
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
Always ONABS ECU internal malfunction is detected.
ECU

Battery
Fail safe function:
If trouble occurs in the power source circuit, the ECU cuts off current to the ABS solenoid relay and prohibits
ABS control.
INSPECTION PROCEDURE
1 Is DTC output?
Check DTC on page DI±177.
YES Repair circuit indicated by the code output.
NO
2 Is normal code displayed?
YES Check ABS solenoid relay. Check for short cir-
cuit in harness and connector between ABS so-
lenoid relay and DLC1 (See page IN±29).
NO
3 Is ABS warning light go off?
YES Check for open or short circuit in harness and
connector between ECU±IG fuse and ABS ECU
(See page IN±29).
NO
DI03P±05