Service manual

3-74 FUEL SYSTEM (DFI)
ECU
CAUTION
Never drop the ECU, especially on a hard surface.
Such a shock to the ECU can damage it.
ECU Removal
•
Remove:
Seat (see Seat Removal in the Frame chapter)
ECU [A]
•
Disconnect the ECU connectors [B].
ECU Installation
•
Connect the ECU connectors [A] to the ECU [B].
•
Install the ECU to the electrical parts case.
ECU Power Supply Inspection
•
Visually inspect the terminals [A] of the ECU connectors.
If the connector is clogged with mud or dust, blow it off
with compressed air.
Replace the main harness if the terminals of the main
harness connectors are cracked, bent, or otherwise dam-
aged.
Replace the ECU if the terminals of the ECU connectors
are cracked, bent, or otherwise damaged.
•
With the ECU connector [A] connected, check the follow-
ing ground lead for continuity with the ignition switch OFF,
using a digital meter and needle adapter set.
Battery [B]
Digital Meter [C]
Special Tool - Needle Adapter Set: 57001-1457
ECU Grounding Inspection
33 or 42 (BK/Y) Terminal
←→
Battery (–) Terminal: 0 Ω
Engine Ground
←→
Battery (–) Terminal: 0 Ω
If no continuity, check the connector, the engine ground
lead, or main harness, and repair or replace them if nec-
essary.