Page text (OCR transcript)
EFI SYSTEM — Troubleshooting for EFI Electronic Circuit with Volt/Ohmmeter FI-35
No. | Terminals | Trouble | Condition | STD voltage
2 | IDL - E₂ | No voltage | Ignition switch ON | Throttle valve open | 4 - 6
| VTA - E₂ | | | Throttle valve fully closed | 0.1 - 1.0
| Vc - E₂ | | | Throttle valve fully open | 4 - 5
| | | | | 4 - 6
ECU
Throttle Position Sensor
[Diagram showing throttle position sensor connections to ECU with terminals E₁, IDL, VTA, Vc, E₂]
F-0485
Voltmeter ECU
[Diagram 1 showing voltmeter connection to IDL terminal]
F-0527
Voltmeter ECU +B
[Diagram 2 showing voltmeter connection to +B terminal]
F-0528
Ohmmeter
[Diagram 3 showing ohmmeter connection to throttle position sensor at IDL and E₂ terminals]
F-0484
① There is no voltage between ECU terminals IDL and E₂. (IG S/W ON) (Throttle valve open)
↓
② Check that there is voltage between ECU terminal +B body and body ground. (IG S/W ON)
NO | OK
↓ |
Check wiring between ECU terminal E₁ and body ground.
|
BAD → Repair or replace
↓
Refer to No. 1. → BAD → Repair or replace
↓
OK
↓
③ Check throttle position sensor. → BAD
|
BAD | OK
↓ ↓
Repair or replace | Check wiring between ECU and throttle position sensor.
↓
OK
↓
Try another ECU.