TOYOTA TERCEL 1996 Service Repair Manual
TERCEL 1996
TOYOTA
TOYOTA
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TOYOTA TERCEL 1996 Service Repair Manual
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Page 311 of 1202
W03008
Battery MAIN FL
Fuse BlockALT Driver Side J/B
B 1 1
F6 F7 B-R EA2 2B-R1 1
1J 1CSTOP
G-W
BH
12ABS ECU IF12
G-R
21 Stop Light Switch
R-W
IE11
G-W
1E 1
1
1L
1K 5
G-W G-W
Stop Light
W-BA12STP Driver Side J/B
DI-136
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
1996 TERCEL (RM440U)
Stop Light Switch Circuit
CIRCUIT DESCRIPTION
This stop light switch senses whether the brake pedal is depressed or released, and sends the signal to the
ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check operation of stop light.
CHECK:
Check that stop light lights up when brake pedal is depressed and turns off when brake pedal is released.
NG Repair stop light circuit (See page BE-28)
OK
DI4LY-02
Page 312 of 1202
R14666
STP (+) (-)
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-137
1996 TERCEL (RM440U)
2 Check voltage between terminal STP of ABS ECU and body ground.
PREPARATION:
Remove the ABS ECU with connectors still connected.
CHECK:
Measure the voltage between terminal STP of the ABS ECU
and body ground when the brake pedal is depressed.
OK:
Voltage: 8 - 14 V
OK Proceed to next circuit inspection shown on
problem symptoms table (See page DI-1 18).
NG
3 Check for open in harness and connector between ABS ECU and stop light
switch (See page DI-1 18).
NG Repair or replace harness or connector.
OK
Check and replace ABS ECU.
Page 313 of 1202
W00708
A6 L
Battery 2Motor
RelayABS ECU
R-L W-BL
L
A7
A7
1
6
A7
A7
4
A75 1
3
A6
Solenoid
Relay
ABS ECU
ABS ECU W-B
W-B
EA
ABS Control Relay
DLC1
22
EB
ABS ActuatorEA110 13IC2 1E
Y
23
Short Pin
A5
4
ABS ECU Y
EA1R-L R-L
R-LR-L
R-L
1 Driver Side J/B
C7
C8 7
GAUGE
Light ABS Warning 1
3
ABS ECU
A1218
WA12 V
L-R DI-138
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
1996 TERCEL (RM440U)
ABS Warning Light Circuit
CIRCUIT DESCRIPTION
If the ECU detects trouble, it lights the ABS warning light while at the same time prohibiting ABS control. At
this time, the ECU records a DTC in memory.
After removing the short pin of the DLC1, connect between terminals Tc and E
1 of the DLC1 to make the
ABS warning light blink and output the DTC.
WIRING DIAGRAM
DI4LZ-02
Page 314 of 1202

F00412
Continuity
Open A6
A7
(-)
(+)
1
62
3
45
Continuity
1
62
5 3 1 2
3 4
4 5
A7
A6Continuity
Open
(+) (-)A7
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-139
1996 TERCEL (RM440U)
INSPECTION PROCEDURE
Troubleshooting in accordance with the chart below for each trouble symptom.
ABS warning light does not light upGo to step 1
ABS warning light remains onGo to step 3
1 Check ABS warning light.
See Combination Meter Troubleshooting on page BE-2.
NG Replace bulb or combination meter assembly.
OK
2 Check ABS control relay.
PREPARATION:
Disconnect the connectors from the control relay.
CHECK:
Check the continuity between each terminal of the ABS control
relay.
OK:
Terminals A7-1 and A6-3Continuity
(Reference value 80 W)
Terminals A7-5 and A7-6Continuity
Terminals A7-2 and A7-5Open
CHECK:
(a) Apply battery voltage between terminals A7-1 and A6-3.
(b) Check the continuity between each terminal of the ABS
control relay.
OK:
Terminals A7-5 and A7-6Open
Terminals A7-2 and A7-5Continuity
CHECK:
Connect the test lead to terminal of A7-4 and the lead to
terminal A7-5. Check the continuity between the terminals.
OK:
Continuity
If there is no continuity, connect the test lead to terminal A7-4
and the lead to terminal A7-5. Recheck continuity between
the terminals.
NG Replace ABS control relay.
OK
Page 315 of 1202
DI-140
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
1996 TERCEL (RM440U)
Repair or replace and check for open in harness and connector between DLC1 and ABS control
relay and body ground (See page IN-26).
3 Is DTC output?
Check DTC on page DI-1 11.
YES Repair circuit indicated by code output.
NO
4 Does ABS warning light go off if short pin is removed?
NO Check for short in harness and connector be-
tween warning light and DLC1 and ECU (See
page IN-26).
YES
5 Check ABS control relay (See step 2).
NG Replace ABS control relay.
OK
Repair or replace and check for short in harness and connector between DLC1 and ABS control
relay (See page IN-26).
Page 316 of 1202
R12884
SRS ECU
A1212 V
EA14
Tc
E
1
J/C
A A
DLC111
EC
BR
Tc
325
P-B P-B P-BABS ECU
J1
BR
R13006
TcE1
DLC1
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-141
1996 TERCEL (RM440U)
Tc Terminal Circuit
CIRCUIT DESCRIPTION
Connecting between terminals Tc and E1 of the DLC1 cause 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 DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure the voltage between terminals Tc and E
1 of the
DLC1.
OK:
Voltage: 10 - 14 V
OK If ABS warning light does not blink even after Tc
and E
1 are connected, ECU may be defective.
NG
DI4M0-02
Page 317 of 1202
DI-142
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
1996 TERCEL (RM440U)
2 Check for open and short in harness and connector between ABS ECU and
DLC1, and DLC1 and body ground (See page IN-26).
NG Repair or replace harness or connector.
OK
Check and replace ABS ECU.
Page 318 of 1202
F00414
24ABS ECU
AA123DLC1
Ts
16
EC
E1TsL
B-RAEA13
B-RL12 V
J/C
J1
R13006
E1
DLC1
Tc
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-143
1996 TERCEL (RM440U)
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 the voltage between terminals Ts and E
1 of the
DLC1.
OK:
Voltage: 10 - 14 V
OK If ABS warning light does not blink even after Ts
and E
1 are connected, ECU may be defective.
NG
DI4M1-02
Page 319 of 1202
DI-144
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
1996 TERCEL (RM440U)
2 Check for open and short in harness and connector between ABS ECU and
DLC1, and DLC1 and body ground (See page IN-26).
NG Repair or replace harness or connector.
OK
Check and replace ABS ECU.
Page 320 of 1202
R12175
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-145
1996 TERCEL (RM440U)
Check for Fluid Leakage
Check for fluid leakage from actuator or hydraulic lines.
DI4M2-01
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