LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 1999 >> Grand Vitara JS Plus 2WD V6-2.5L >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Fuel Cut Control Unit >> Testing and Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Cut Control Unit: Testing and Inspection





NOTE: Before inspection, check to make sure that gear shift lever is in Neutral position (with A/T model, selector lever in "P" range) and that parking brake lever is pulled all the way up.

1. Warm up engine to normal operating temperature.
2. While listening to sound of injector by using sound scope or such, increase engine speed to higher than 3,000 rpm.
3. Check to make sure that sound to indicate operation of injector stops when throttle valve is closed instantly and it is heard again when engine speed is reduced to less than about 2,000 rpm.