Page 181 of 1202

- DIAGNOSTICSENGINE
DI-7
1996 TERCEL (RM440U)
(b) Clear the DTC.
The following actions will erase the DTC and freezed
frame data.
(1) Operating the OBD II scan tool (complying with SAE
J1978) or TOYOTA hand-held tester to erase the
codes. (See the OBD II scan tool's instruction book
for operating instructions.)
(2) Disconnecting the battery terminals or EFI fuse.
NOTICE:
If the TOYOTA hand-held tester switches the ECM from
normal mode to check mode or vice-versa, or if the igni-
tion switch is turned from ON to ACC or OFF during check
mode, the DTC and freezed frame data will be erased.
4. FAIL-SAFE CHART
If any of the following codes is recorded, the ECM enters fail-safe mode.
DTC No.Fail-Safe OperationFail-Safe Deactivation Conditions
P0105Ignition timing fixed at 5° BTDCReturned to normal condition
P0110Intake air temp. is fixed at 20°C (68°F)Returned to normal condition
P0115Engine coolant temp. is fixed at 80°C (176°F)Returned to normal condition
P0120VTA is fixed at 0°
The following condition must be repeated at least 2 times
consecutively
When closed throttle position switch is ON:
0.1 V VTA 0.95 V
P0141The heater circuit in which an abnormality is detected is
turned offIgnition switch OFF
P0325Max. timing retardationIgnition switch OFF
P1300Fuel cutIGF signal is detected for 4 consecutive ignitions
5. CHECK FOR INTERMITTENT PROBLEMS
HINT:
TOYOTA hand-held tester only:
By putting the vehicle's ECM in check mode, 1 trip detection logic is possible instead of 2 trip detection logic
and sensitivity to detect open circuits is increased. This makes it easier to detect intermittent problems.
(a) Clear the DTC (See page DI-13).
(b) Set the check mode (See page DI-13).
(c) Perform a simulation test (See page IN-26).
(d) Check the connector and terminal (See page IN-26).
(e) Handle the connector (See page IN-26).
6. BASIC INSPECTION
When the malfunction code is not confirmed in the DTC check, troubleshooting should be performed in the
order for all possible circuits to be considered as the causes of the problems. In many cases, by carrying
out the basic engine check shown in the following flow chart, the location causing the problem can be found
quickly and efficiently. Therefore, use of this check is essential in engine troubleshooting.
1 Is battery positive voltage 11V or more when engine is stopped ?
NO Charge or replace battery.
Page 563 of 1202
P20320
EFI Main
Relay
SF0XI-04
Z13175
Continuity
Ohmmeter
30
85 No
Continuity
Ohmmeter86
87
Z13176
Continuity
30
85 Ohmmeter86
87
Battery MF-38
- MFIEFI MAIN RELAY
562 Author: Date:
1996 TERCEL (RM440U)
EFI MAIN RELAY
INSPECTION
1. REMOVE EFI MAIN RELAY (Marking: EFI MAIN)
LOCATION: In the engine compartment relay box.
2. INSPECT EFI MAIN RELAY CONTINUITY
(a) Using an ohmmeter, check that there is continuity be-
tween terminals 86 and 85.
If there is no continuity, replace the relay.
(b) Check that there is no continuity between terminals 87
and 30.
If there is continuity, replace the relay.
3. INSPECT EFI MAIN RELAY OPERATION
(a) Apply battery voltage across terminals 86 and 85.
(b) Using an ohmmeter, check that there is continuity be-
tween terminals 87 and 30.
If there is no continuity, replace the relay.
4. REINSTALL EFI MAIN RELAY
Page 776 of 1202
AX08K-01
D01644
Stop Light SwitchKey Interlock Solenoid
Shift Lock
Override Button
Shift Lock Control
Unit Assembly
BatteryMAIN
FLALTStopIgnition Switch
ACC
IGCIG
ECU-IG
Stop Light
Switch
Stop
LightSTPShift Lock
Control ECUIG ACC
Key Interlock Solenoid
KLS
+
E WIRING DIAGRAM
- AUTOMATIC TRANSAXLE (A132L)SHIFT LOCK SYSTEM
AX-23
775 Author: Date:
1996 TERCEL (RM440U)
SHIFT LOCK SYSTEM
LOCATION
Page 810 of 1202
AX084-01
D01645
Key Interlock Solenoid
Stop Light SwitchShift Lock
Override Button
Shift Lock Control
Unit Assembly
BatteryMAIN
FLALTStopIgnition Switch
ACC
IGCIG
ECU-IG
IG
Shift Lock
Control ECUACC
Key Interlock Solenoid
KLS
+
E Stop Light
Switch
Stop
LightSTP WIRING DIAGRAM
- AUTOMATIC TRANSAXLE (A242L)SHIFT LOCK SYSTEM
AX-27
809 Author: Date:
1996 TERCEL (RM440U)
SHIFT LOCK SYSTEM
LOCATION