1999 TOYOTA CAMRY ABS

DI±68
± DIAGNOSTICSENGINE
Check for open and short in harness and con-
nector between engine room J/B No.2 and
ECM (See page IN±29).
4 Check EGR system (See Pub. No. RM654U, page EC±12).
NG Repair or replace.
OK
5 Check EGR vacuum modulator (See Pub. No. RM654U, page EC±12).
NG Repair or replace.
OK
6 Check EGR valve (See Pub. No. RM654U, page EC±12).
NG Repair or replace.
OK
7 Check manifold absolute pressure sensor (See Pub. No. RM654U, page SF±53).
NG Repair and replace.
OK
Check and replace ECM (See page IN±29).

DI±130
± DIAGNOSTICSENGINE
7 Check injector injection (See Pub. No. RM654U, page SF±23).
NG Replace injector.
OK
8 Check EGR system (See Pub. No. RM654U, page EC±12).
NG Repair EGR system.
OK
9 Check manifold absolute pressure sensor (See Pub. No. RM654U, page SF±53)
and engine coolant temp. sensor (See Pub. No. RM654U, page SF±49).
NG Repair or replace.
OK
Check compression pressure (See page
*1),
valve clearance (See page *2) and valve tim-
ing (See page *3).
*1: See Pub. No. RM654U, page EM±3.
*1: See Pub. No. RM654U, page EM±4.
*1: See Pub. No. RM654U, page EM±23.

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.

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

DI03D±04
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
DI±181
DIAGNOSTIC TROUBLE CODE CHART
HINT:

Using SST 09843 ±18020, connect the terminals Tc and E1, and remove the short pin.

If any abnormality is not found when inspection parts, inspect the ECU.

If a malfunction code is displayed during the DTC check, check the circuit listed for the code. For details
of each code, turn to the page referred to under the ºSee pageº for respective ºDTC No.º in the DTC
chart.
DTC No.
(See Page)Detection ItemTrouble Area
11
(DI±186)Open circuit in ABS solenoid relay circuit
ABS solenoid relay
12
(DI±186)Short circuit in ABS solenoid relay circuit

ABS solenoid relay

ABS solenoid relay circuit
13
(DI±191)Open circuit in ABS motor relay circuit
ABS motor relay
14
(DI±191)Short circuit in ABS motor relay circuit

ABS motor relay

ABS motor relay circuit
21
(DI±195)Open or short circuit in 2±position solenoid circuit for right front
wheel
ABS actuator

SFRR or SFRH circuit
22
(DI±195)Open or short circuit in 2±position solenoid circuit for left front
wheel
ABS actuator

SFLR or SFLH circuit
23
(DI±195)Open or short circuit in 2±position solenoid circuit for right rear
wheel
ABS actuator

SRRR or SRRH circuit
24
(DI±195)Open or short circuit in 2±position solenoid circuit for left rear
wheel
ABS actuator

SRLR or SRLH circuit
31
(DI±198)Right front wheel speed sensor signal malfunction
32
(DI±198)Left front wheel speed sensor signal malfunction
Right front, left front, right rear and left rear speed sensor
Eh d i it33
(DI±198)Right rear wheel speed sensor signal malfunction

Each speed sensor circuit

Speed sensor rotor
34
(DI±198)Left rear wheel speed sensor signal malfunction
33, 34
(DI±203)Rear speed sensor rotor faulty

Rear axle hub

Right rear, left rear speed sensor

Rear speed sensor circuit
41
(DI±204)Power source voltage down

Battery

Charging system

Power source circuit
49
(DI±207)Open circuit in stop light switch circuit
Stop light switch

Stop light switch circuit
51
(DI±209)Pump motor is locked
ABS pump motor
Always ON
(DI±211)Malfunction in ECU
ECU

Battery

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