2000 TOYOTA CAMRY ECU

F00097
Instrument Panel J/B
1DR±L
C10 C8 IND 2J/C
J4LG18
A16 R±LSLIP Indicator LightABS & TRAC ECU
IG3 75
LG3
D D Instrument Panel J/B
1DR±L
C10 C8 IND 2J/C
J4LG18
A16 R±LSLIP Indicator LightABS & TRAC ECU
IG3 75
LG3
D D Instrument Panel J/B
1DR±L
C10 C8 IND 2J/C
J4LG18
A16 R±LSLIP Indicator LightABS & TRAC ECU
IG3 75
LG3
D D Instrument Panel J/B
1DR±L
C10 C8 IND 2J/C
J4LG18
A16 R±LSLIP Indicator LightABS & TRAC ECU
IG3 75
LG3
D D Instrument Panel J/B
1DR±L
C10 C8 IND 2J/C
J4LG18
A16 R±LSLIP Indicator LightABS & TRAC ECU
IG3 75
LG3
D D Instrument Panel J/B
1DR±L
C10 C8 IND 2J/C
J4LG18
A16 R±LSLIP Indicator LightABS & TRAC ECU
IG3 75
LG3
D DInstrument Panel J/B
1DR±L
C10 C8 IND 2
GAUGEJ/C
J4LG18
A16 R±LSLIP Indicator LightABS & TRAC ECU
IG3 75
LG3
D D
DI±620
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
855 Author: Date:
SLIP Indicator Light Circuit
CIRCUIT DESCRIPTION
The SLIP indicator blinks during TRAC operation.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check SLIP indicator light.
See combination meter troubleshooting on page BE±2.
NG Repair or replace combination meter.
OK
2 Check for short circuit in harness and connector between ABS & TRAC ECU and
SLIP indicator light (See page IN±31).
NG Repair or replace harness or connector.
OK
Check and replace ABS & TRAC ECU.
DI04Z±04

F00120
DLC2
ECII3
ADLC1 6
12
Tc
BJ3
J22J/C
II3A15 IK2 J8
11 J7 E
1
C
BRA
ABR BRBRJ/C
BR
TcTc
E
1LG±RJ/C
BB B LG±R LG±RLG±RABS & TRAC ECU
9
34
113
DLC2
ECII3
ADLC1 6
12
Tc
BJ3
J22J/CLG±R
*1
II3A15 IK2 J8
11 J7 E
1
C
BRA
ABR BRBRJ/C
BR
TcTc
E
1LG±RJ/C
BB B LG±R LG±RLG±RABS & TRAC ECU
9
34
113
P±B*2
*1:

TMC Made*2: TMMK Made
F02607 F00445F02612
DLC2
DLC1
Tc E
1
Tc E
1
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±621
856 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
blinking the ABS warning light and TRAC OFF indicator 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
DI4KY±01

DI±622
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
857 Author: Date:
2 Check for open and short circuit in harness and connector between ABS &
TRAC ECU and DLC2 or DLC1, DLC2 or DLC1 and body ground (See page
IN±31).
NG Repair or replace harness or connector.
OK
Check and replace ABS & TRAC ECU.

DI1B1±08
H01357
C18
C17C19
287 8 9 10 16 17
18A B12 3 4 5 6
11 12 15 14 13
AABB
19 20 21 22 23 24 25 26 27 1 2 3 4 5 6
7 8 9 10 11 121 2 3 4 5 6
7 8 9 10 11 12
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±637
872 Author: Date:
TERMINALS OF ECU
No.SymbolTerminal Name
A±Electrical Connector Check Mechanism
B±Electrical Connector Check Mechanism
C18 ± 3LASRS Warning Light
C18 ± 5IG2Power Source (IGN Fuse)
C18 ± 6ACCPower Source (CIG Fuse)
C18 ± 9SR+Front Airbag Sensor (RH)
C18 ± 10P+Squib (Passenger)
C18 ± 11P±Squib (Passenger)
C18 ± 12SILDiagnosis
C18 ± 13D±Squib (Driver)
C18 ± 14D+Squib (Driver)
C18 ± 15SL+Front Airbag Sensor (LH)
C18 ± 19TcDiagnosis
C18 ± 20SR±Front Airbag Sensor (RH)
C18 ± 26SL±Front Airbag Sensor (LH)
C18 ± 27E1Ground
C18 ± 28E2Ground
C17 ± 1PL±Squib (Seat Belt Pretensioner, LH)
C17 ± 2PL+Squib (Seat Belt Pretensioner, LH)
C17 ± 5SFL+Squib (Side, LH)
C17 ± 6SFL±Squib (Side, LH)
C17 ± 7VUPLSide Airbag Sensor (LH)
C17 ± 9SSL+Side Airbag Sensor (LH)
C17 ± 10FSLSide Airbag Sensor (LH)
C17 ± 12ESLSide Airbag Sensor (LH)

H02289
2 Airbag Sensor
Assembly
237
B±Y
12 IG2
C18LG
AB10A
ECU±B
Short Pin
W±R
1W Engine Room J/B No.2
11 B
II3 A
A 3
LG
5DLC1 1 Battery
4 J3 Junction
Connector
1G2J 2A B±G
F4 F6 FL MAINFusible Link Block
1
1
TCP±B7Instrument Panel J/B
C18
B A LAW±R
LG
13
TC B±Y (*1)
LG (*2)
LG±R (*3)
P±B (*4)
II3 LG±R11
B B
TC LG±R J3 Junction
Connector
19
DLC2 SRS Warning Light
*1: TMMK Made, 1MZ±FE
*2: Except *1
*3: TMC Made
*4: TMMK Made DI±790
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1025 Author: Date:
SRS Warning Light Circuit Malfunction (Always lights up, when
ignition switch is in LOCK position.)
CIRCUIT DESCRIPTION
The SRS warning light is located on the combination meter.
When the SRS is normal, the SRS warning light lights up for approx. 6 seconds after the ignition switch is
turned from the LOCK position to ACC or ON position, and then turns off automatically.
If there is a malfunction in the SRS, the SRS warning light lights up to inform the driver of the abnormality.
When terminals Tc and E1 of the DLC1 are connected, the DTC is displayed by blinking the SRS warning
light.
WIRING DIAGRAM
DI1BO±08

N14677
Fuse
DI±792
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1027 Author: Date:
SRS Warning Light Circuit Malfunction (Does not light up, when
ignition switch is turned to ACC or ON.)
CIRCUIT DESCRIPTION
The SRS warning light is located on the combination meter.
When the SRS is normal, the SRS warning light lights up for approx. 6 seconds after the ignition switch is
turned from LOCK position to ACC or ON position, and then turns off automatically.
If there is a malfunction in the SRS, the SRS warning light lights up to inform the driver of the abnormality.
When terminals Tc and E1 of the DLC1 are connected, the DTC is displayed by blinking the SRS warning
light.
WIRING DIAGRAM
See page DI±790.
INSPECTION PROCEDURE
1 Check ECU±B Fuse.
PREPARATION:
Remove ECU±B fuse.
CHECK:
Check continuity of ECU±B fuse.
OK:
Continuity
HINT:

Fuse may be burnt out even if it appears to be OK during
visual inspection.

If fuse is OK, install it.
NG Go to step 5.
OK
2 Prepare for inspection. (See step 1 on page DI±787)
DI1BP±08

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±795
1030 Author: Date:
5 Is new ECU±B fuse burnt out again?
NO Using simulation method, reproduce malfunc-
tion symptoms. (See page IN±21)
YES
Check harness between ECU±B fuse and
SRS warning light.

I00306
Destroy
Transmitter
EPROM
ECU
ECU
TransmitterNew Parts
Registration
of recogition
code.
N13157
New Part
Dispose of
I00307
Registration
of recogition
codeDestory ECU New Parts
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
DI±803
1038 Author: Date:
2. REPLACE WIRELESS DOOR LOCK ECU AND TRANS-
MITTER
HINT:
Disassembly and assembly of the transmitter includes details
of spare parts and replacement procedure for detective parts
found through troubleshooting.
Each part is a precision electronic component so handle with
care.
(a) Spare parts and replacement procedure for malfunction-
ing parts (transmitter malfunction):
(1) Prepare a new transmitter.
(2) Registration of recogition code.
(3) Check that door lock remote control operation
works.
(b) Spare parts and replacement procedure for malfunction-
ing parts (battery malfunction):
(1) Prepare a new battery.
(2) Remove the battery from transmitter.
(3) Install a new battery into transmitter.
(c) Spare parts and replacement procedure for malfunction-
ing parts (ECU malfunction):
(1) Prepare a new ECU.
(2) Remove the ECU from the vehicle.
(3) Install a new ECU in the vehicle.
(4) Registration of recogition code.