ABS TOYOTA TERCEL 1996 Service Workshop Manual

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.

H01461H04911
H05581
ABTerminal
Tc
ABOFF
Body
Ground
OFF
ON
OFF
Several
Seconds50 m sec.
50 m sec.
1 second
(± 0.5 sec.)
Tc
Body
Ground
1 second
(± 0.5 sec.)
1
23
45
N12278
DI-150
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
4. DTC CLEARANCE (Using diagnosis check wire)
(a) Connect the 2 service wires to terminals Tc and AB of
DLC1.
(b) Turn the ignition switch to ACC or ON and wait approx. 6
seconds.
(c) Starting with the Tc terminal, apply body ground alternate-
ly to terminal Tc and terminal AB twice each in cycles of
1.0 seconds. Confirm that body ground is absolute. Final-
ly, keep applying body ground to terminal Tc.
HINT:
When alternately grounding terminals Tc and AB, release
ground from one terminal and immediately apply it to the other
terminal within an interval of 0.2 seconds. If DTCs do not clear,
repeat the above procedure until the codes are cleared.
(d) Several seconds after doing the clearing procedure, the
SRS warning light will blink in a 50 m sec. cycle to indicate
the codes have been cleared.
5. DTC CLEARANCE (Using TOYOTA hand-held tester)
(a) Hook up the TOYOTA hand-held tester to the DLC1.
(b) Clear the DTCs by following the prompts on the tester
screen.
HINT:
Please refer to the TOYOTA hand-held tester operator's manu-
al for further details.

SF0WO-03
- MFIMANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
MF-47
571 Author
: Date
:
1996 TERCEL (RM440U)
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
COMPONENTS

SF0WP-03
Z19295
Voltmeter
ECMVacuum
PIM
E2
Voltage Drop:
Applied
Vacuum
kPa
mmHg
in.Hg
Vo l t a ge
drop V13.3
100
3.94
0.3 - 0.5
26.7 40.0 53.5 66.7
200
7.87
300
11.81400
15.75500
19.69
0.7 - 0.9 1.1 - 1.3 1.5 - 1.7 1.9 - 2.1 MF-48
- MFIMANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
1996 TERCEL (RM440U)
INSPECTION
1. INSPECT POWER SOURCE VOLTAGE OF MAP SEN-
SOR
(a) Disconnect the MAP sensor connector.
(b) Turn the ignition switch ON.
(c) Using a voltmeter, measure the voltage between connec-
tor terminals VC and E2 of the wiring harness side.
Voltage: 4.5 - 5.5 V
(d) Turn the ignition switch to LOCK.
(e) Reconnect the MAP sensor connector.
2. INSPECT POWER OUTPUT OF MAP SENSOR
(a) Turn the ignition switch ON.
(b) Disconnect the vacuum hose from the MAP sensor.
(c) Connect a voltmeter to terminals PIM and E2 of the ECM,
and measure the output voltage under ambient atmo-
spheric pressure.
(d) Apply vacuum to the MAP sensor in 13.3 kPa (100 mmHg,
3.94 in.Hg) segments to 66.7 kPa (500 mmHg, 19.69
in.Hg).
(e) Measure the voltage drop from step (c) above for each
segment.
(f) Reconnect the vacuum hose to the MAP sensor.

CO0HX-01
- COOLINGTHERMOSTAT
CO-9
1996 TERCEL (RM440U)
REMOVAL
NOTICE:
Do not remove the thermostat unless absolutely necessary.
HINT:
Removal of the thermostat would have an adverse effect, causing a lowering of cooling efficiency.
1. REMOVE AIR CLEANER INLET
2. DRAIN ENGINE COOLANT
3. REMOVE WATER INLET AND THERMOSTAT
(a) Remove the 2 nuts, water inlet and thermostat from the water inlet housing.
(b) Remove the gasket from the thermostat.