FI/EFI System, page 41

EFI SYSTEM — Troubleshooting for EFI Electronic Circuit with Volt/Ohmmeter

FI-41

No. | Terminals | Trouble | Condition | STD Voltage
6 | No. 10 — E₁
No. 20 — E₁ | No voltage | Ignition switch ON | 9 — 14V

Fusible Link

Fusible Link — Fuse — Igniter
Ignition S/W

Fusible Link

Battery

Solenoid Resistor — ECU

Injector

No. 10
No. 20
IG S/W
E₁
E₁₊₂

FI0798

Voltmeter No. 10 — ECU

V ⁺ ⁻ No. 20

FI0799

① There is no voltage between ECU terminal No. 10 and/or No. 20 and E₀₁ or E₀₂. (IG S/W ON)

② Check that there is specified voltage between resistor terminal (+) and body ground. STD voltage: 10 — 13V

OK | NO

Check fuse, fusible link and ignition switch. | BAD | Repair or replace

OK

Check main relay No. 2. | BAD | Replace

OK

Check circuit between resistor and battery. | BAD | Repair or replace

② Check that there is specified voltage between resistor terminal (—) and body ground. STD voltage: 10 — 13V

OK | BAD

③ Check resistance of magnetic coil in the each injector. STD resistance: 1.5 — 3.0Ω | Replace resistor.

OK | BAD

Check wiring between ECU and injector. | Replace injector.

OK | BAD

Try another ECU. | Repair or replace

Solenoid Resistor

(—) (+)

Voltmeter

FI0800

Ohmmeter

Ω

FI0801