lock TOYOTA TERCEL 1996 Service Manual PDF

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

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).

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

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.

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

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.

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

DI4M8-01
N12263
Front Passenger
Airbag Assembly Steering Wheel Pad
(With Airbag)
Spiral Cable
Airbag Sensor Assembly
Instrument Panel
Junction BlockSRS Warning Light
DI-152
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
PARTS LOCATION

DI4MA-01
DI-154
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
PROBLEM SYMPTOMS TABLE
Proceed with troubleshooting of each circuit in the table below.
SymptomSuspect AreaSee page

With the ignition switch at ACC or ON, the SRS warning light
sometimes lights up after approx. 6 seconds have elapsed.

SRS warning light is always lit up even when ignition switch is in
the LOCK position.

SRS warning light system malfunction
(Always lit up when ignition switch is in LOCK position.)DI-180

With the ignition switch at ACC or ON, the SRS warning light
does not light up.
SRS warning light system malfunction
(Does not light up, when ignition switch is turned to ACC
or ON.)
DI-182

DTC not displayed.

SRS warning light is always lit up a DTC check procedure.

DTC displayed without Tc and E1 terminal connection.

Tc terminal circuitDI-185

AB0069
W01933
AB0118
R13006AB0069
AB0118
W02042
H00006
Airbag Sensor
Assembly
Spiral
Cable P Squib
D SquibP+
P-
D+ D-ACCON
or
Code 11
DLC1
Tc
E1
DI-158
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
4 Check airbag sensor assembly.
PREPARATION:
(a) Connect connector to airbag sensor assembly.
(b) Using a service wire, connect D+ and D- on spiral cable
side of connector between spiral cable and steering
wheel pad.
(c) Using a service wire, connect P+ and P- on airbag sensor
assembly side of connector between airbag sensor as-
sembly and front passenger airbag assembly.
(d) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory.
(See page DI-148)
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC 1.
SST 09843-18020
(f) Check DTC
OK:
DTC 11 is not output.
HINT:
Codes other than code 11 may be output at this time, but they
are not relevant to this check.
NG Replace airbag sensor assembly.
OK