Air Switching Valve Removal/Installation
Air Switching Valve Inspection
If the air switching valve [A] is normal, check the wiring for continuity (see Air Switching Valve Circuit).
Special Tool - Hand Tester: 57001-1394
If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).

Air Switching Valve Circuit

1. ECU
2. Air Switching Valve
3. Ignition Switch
4. Joint Connector F
5. Joint Connector A
6. Fuse Box 1
7. Ignition Fuse 15 A
8. Relay Box
9. ECU Main Relay
10. Frame Ground 1
11. Frame Ground 3
12. Starter Relay
13. ECU Fuse 15 A
14. Main Fuse 30 A
15. Battery
16. Engine Ground
Exhaust Butterfly Valve Actuator Resistance InspectionKIBS Hydraulic Unit Removal
NOTICE
The KIBS hydraulic unit [A] has been adjusted
and set with precision at the factory. Therefore, it
should be handled carefully, never struck sharply,
as with a hammer, or allowed to fall on a hard
surface.
Be careful not to get water or mud on the KIBS hydraulic
unit.
Drain the b ...
Meter Operation Inspection
Check 1-1: Switching Inspection
Turn the ignition switch to ON and check the following.
The all LCD segments [A] appear for 3 seconds.
The warning indicator light (Red LED) [B] goes on for 3
seconds and then goes off in a moment after that goes
off.
The warning indicator light (Yellow LED ...
Brake Light Switches
When either the front or rear brake is
applied, the brake light goes on. The
front brake light switch requires no adjustment,
but the rear brake light switch
should be adjusted in accordance with
the Periodic Maintenance Chart.
Inspection
Turn the ignition key to “ON�.
The brake ligh ...