Kawasaki STX-15F service manual ECU Removal, ECU Installation, ECU Power Supply Inspection

3-60 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 Hull/Engine Hood chapter)

Bolts [A]

•Disconnect the ECU lead connector [A].

•Remove: ECU [B]

ECU Installation

•Connect the ECU connector and install it.

•Apply a non-permanent locking agent to the bolts and tighten them.

Torque - ECU Mounting Bolts: 8.8 N·m (0.90 kgf·m, 78in·lb)

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 har- ness connector is cracked, bent, or otherwise damaged.

Replace the ECU if the terminals of the ECU connector is 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 tester and needle adapter set.

[B]Battery

[C]Tester

Special Tool - Needle Adapter Set: 57001-1457

ECU Grounding Inspection

25, 32, 41, or 42 (BK) ←→

Terminal

Engine Ground ←→

Battery (–) Terminal: 0 Ω

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.