1996 TOYOTA TERCEL Service Repair Manual

BE4061I05898I09782
ON
(+)
(-)
1
Connect
I05899BE4061
I09783
21
Disconnect
DI-242
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
1996 TERCEL (RM440U)
INSPECTION PROCEDURE
1 Check voltage between terminal 1 of luggage compartment door key lock and
unlock switch connector and body ground.
PREPARATION:
(a) Remove luggage compartment door trim.
(b) Turn ignition switch ON.
CHECK:
Measure voltage between terminal 1 of luggage compartment
door key lock and unlock switch connector and body ground,
when the key is turned to the unlock side and not turned.
OK:
Key operationVoltage
Turned to the unlock side0 V
Not turnedBattery positive voltage
OK Check and replace theft deterrent ECU.*1
NG
2 Check luggage compartment door key lock and unlock switch.
PREPARATION:
Disconnect luggage compartment door key lock and unlock
switch connector.
CHECK:
Check continuity between terminals 1 and 2, when the key is
turned to the unlock side and not turned.
OK:
Key operationTester connectionSpecified condition
Turned to unlock side1 - 2Continuity
Not turned-No continuity
NG Repair or replace luggage compartment door
key lock and unlock switch.
OK

- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-243
1996 TERCEL (RM440U)
3 Check harness and connector between theft deterrent ECU and switch, switch
and body ground (See page IN-26).
NG Repair or replace harness or connector.
OK
Check and replace theft deterrent ECU.
*1: When there is a malfunction that the theft deterrent system cannot be set, proceed to the next numbered
circuit inspection shown on matrix chart (See page DI-223).

N12896
Rear LeftR-W R-W
Rear Right R-W 2
1 Security Diode1
R-W
Instrument Panel
Junction Block11
1L6
1CR-W3
T4 CTY Front Right1
(2Dr) R
(4Dr) R-G8
IE2R-G19
T4 DSWP Door Courtesy Switch
Front Leftto Door Light
11
IE2R7
T4DSWD Theft Deterrent ECU
F8
F9
11
R11R12 R DI-244
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
1996 TERCEL (RM440U)
Door Courtesy Switch Circuit
CIRCUIT DESCRIPTION
The door courtesy switch goes on when the door is opened and goes off when the door is closed.
WIRING DIAGRAM
DI4ND-01

- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-245
1996 TERCEL (RM440U)
INSPECTION PROCEDURE
1 Check operation of open door warning light.
CHECK:
Check that open door warning light comes on when each door is opened, and goes off when all doors are
closed.
NG Check and repair open door warning light cir-
cuit.
OK
2 Check for open in harness and connector between theft deterrent ECU and door
courtesy switch (See page IN-26).
OK Check and replace theft deterrent ECU.*1
NG
Repair or replace harness or connector.
*1: When there is a malfunction that the theft deterrent system cannot be set, proceed to the next numbered
circuit inspection shown on matrix chart (See page DI-223).

N12897
EB W-BEngine Room
Relay Block
(JUNCTION CONNECTOR)A
A
2 2Engine Hood
Courtesy Switch
12
LG-B12
IC2
LG-B14
T4 Theft Deterrent ECU
DSWH
E5
W-B DI-246
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
1996 TERCEL (RM440U)
Engine Hood Courtesy Switch Circuit
CIRCUIT DESCRIPTION
The engine hood courtesy switch is built into the engine hood lock assembly and goes on when the engine
hood is opened and goes off when the engine hood is closed.
WIRING DIAGRAM
DI4NE-02

BE4061I00298I09784
1
2 Disconnect
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-247
1996 TERCEL (RM440U)
INSPECTION PROCEDURE
1 Check engine hood courtesy switch.
PREPARATION:
(a) Remove engine hood lock assembly.
(b) Disconnect engine hood courtesy switch connector.
CHECK:
Check continuity between terminals 1 and 2 when engine hood
lock is locked and unlocked.
OK:
Engine hood lockTester connectionSpecified condition
LOCK-No continuity
UNLOCK1 - 2Continuity
NG Replace engine hood courtesy switch.
OK
2 Check harness and connector between theft deterrent ECU and switch, switch
and body ground (See page IN-26).
NG Repair or replace harness or connector.
OK
Check and replace theft deterrent ECU
(See
page
IN-26).

EM18U-02
P19776
CO/HC Meter
- ENGINE MECHANICALCO/HC
EM-1
422 Author
: Date
:
1996 TERCEL (RM440U)
CO/HC
INSPECTION
HINT:
This check is used only to determine whether or not the idle CO/
HC complies with regulations.
1. INITIAL CONDITIONS
(a) Engine coolant at normal operating temperature.
(b) Air cleaner installed.
(c) All pipes and hoses of air induction system connected.
(d) All accessories switched OFF.
(e) All vacuum lines properly connected.
HINT:
All vacuum hoses for EGR systems, etc. should be properly
connected.
(f) SFI system wiring connectors fully plugged.
(g) Ignition timing set correctly.
(h) Transmission in neutral position.
(i) CO/HC meter calibrated by hand.
2. START ENGINE
3. RACE ENGINE AT 2,500 RPM FOR APPROX. 180 SE-
CONDS
4. INSERT CO/HC METER TESTING PROBE AT LEAST
40 cm (1.3 ft) INTO TAILPIPE DURING IDLING
5. IMMEDIATELY CHECK CO/HC CONCENTRATION AT
IDLE AND/OR 2,500 RPM
HINT:
When doing the 2 mode (2,500 rpm and idle) test, follow the
measurement order prescribed by the applicable local regula-
tions.

EM-2
- ENGINE MECHANICALCO/HC
423 Author
: Date
:
1996 TERCEL (RM440U)
If the CO/HC concentration does not comply with regulations,
troubleshoot according to the table below. Check and correct
the cause if necessary.