TROUBLE DIAGNOSES — Electrical Components Inspection (Cont'd) — E.C.U. INPUT/OUTPUT SIGNAL INSPECTION
EF & EC-120spec tableElectrical Components Inspection (Cont'd)
E.C.U. INPUT/OUTPUT SIGNAL INSPECTION
E.C.U. inspection table
NOTE
*Data are reference values.
E.C.U. Inspection Table
| TERMINAL NO. | ITEM | CONDITION | DATA* |
|---|---|---|---|
| 1 | Ignition signal for No. 1 cylinder | Engine is running. — Idle speed | 0.06V |
| 2 | Ignition signal for No. 2 cylinder | Engine is running. — Idle speed | 0.06V |
| 3 | Ignition signal for No. 3 cylinder | Engine is running. — Idle speed | 0.06V |
| 1 | Ignition signal for No. 1 cylinder | Engine is running. — Engine speed is approximately 2,500 rpm. | 0.12 - 0.13V |
| 2 | Ignition signal for No. 2 cylinder | Engine is running. — Engine speed is approximately 2,500 rpm. | 0.12 - 0.13V |
| 3 | Ignition signal for No. 3 cylinder | Engine is running. — Engine speed is approximately 2,500 rpm. | 0.12 - 0.13V |
| 11 | Ignition signal for No. 4 cylinder | Engine is running. — Idle speed | 0.06V |
| 11 | Ignition signal for No. 4 cylinder | Engine is running. — Engine speed is approximately 2,500 rpm. | 0.12 - 0.13V |
| 6 | Air conditioner relay | A/C switch "OFF" | BATTERY VOLTAGE (11 - 14V) |
| 6 | Air conditioner relay | A/C switch "ON" | 0 - 1.0V |
| 7 | Tachometer | Engine is running. — Idle speed | 0.9V |
| 7 | Tachometer | Engine is running. — Engine speed is approximately 2,500 rpm. | 1.7V |
| 16 | E.C.C.S. relay | Ignition switch "ON" | 0 - 1.0V |
| 16 | E.C.C.S. relay | Ignition switch "OFF" | BATTERY VOLTAGE (11 - 14V) |
| 18 | Fuel pump relay | Ignition switch "ON" — For 5 seconds after turning ignition switch "ON" | 0.7 - 0.9V |
| 18 | Fuel pump relay | Engine is running. | 0.7 - 0.9V |
| 18 | Fuel pump relay | Ignition switch "ON" — In 5 seconds after turning ignition switch "ON" | BATTERY VOLTAGE (11 - 14V) |
| 23 | Detonation sensor | Engine is running. — Idle speed | 3 - 4V |
1
ITEMIgnition signal for No. 1 cylinder
CONDITIONEngine is running. — Idle speed
DATA*0.06V
2
ITEMIgnition signal for No. 2 cylinder
CONDITIONEngine is running. — Idle speed
DATA*0.06V
3
ITEMIgnition signal for No. 3 cylinder
CONDITIONEngine is running. — Idle speed
DATA*0.06V
1
ITEMIgnition signal for No. 1 cylinder
CONDITIONEngine is running. — Engine speed is approximately 2,500 rpm.
DATA*0.12 - 0.13V
2
ITEMIgnition signal for No. 2 cylinder
CONDITIONEngine is running. — Engine speed is approximately 2,500 rpm.
DATA*0.12 - 0.13V
3
ITEMIgnition signal for No. 3 cylinder
CONDITIONEngine is running. — Engine speed is approximately 2,500 rpm.
DATA*0.12 - 0.13V
11
ITEMIgnition signal for No. 4 cylinder
CONDITIONEngine is running. — Idle speed
DATA*0.06V
11
ITEMIgnition signal for No. 4 cylinder
CONDITIONEngine is running. — Engine speed is approximately 2,500 rpm.
DATA*0.12 - 0.13V
6
ITEMAir conditioner relay
CONDITIONA/C switch "OFF"
DATA*BATTERY VOLTAGE (11 - 14V)
6
ITEMAir conditioner relay
CONDITIONA/C switch "ON"
DATA*0 - 1.0V
7
ITEMTachometer
CONDITIONEngine is running. — Idle speed
DATA*0.9V
7
ITEMTachometer
CONDITIONEngine is running. — Engine speed is approximately 2,500 rpm.
DATA*1.7V
16
ITEME.C.C.S. relay
CONDITIONIgnition switch "ON"
DATA*0 - 1.0V
16
ITEME.C.C.S. relay
CONDITIONIgnition switch "OFF"
DATA*BATTERY VOLTAGE (11 - 14V)
18
ITEMFuel pump relay
CONDITIONIgnition switch "ON" — For 5 seconds after turning ignition switch "ON"
DATA*0.7 - 0.9V
18
ITEMFuel pump relay
CONDITIONEngine is running.
DATA*0.7 - 0.9V
18
ITEMFuel pump relay
CONDITIONIgnition switch "ON" — In 5 seconds after turning ignition switch "ON"
DATA*BATTERY VOLTAGE (11 - 14V)
23
ITEMDetonation sensor
CONDITIONEngine is running. — Idle speed
DATA*3 - 4V