Adjusting The Contrast; Replacing The Injector/Fuel Pump Fuse - Bosch CH-47976 User Manual

Adjusting the Contrast

Normally you will not need to adjust the LCD screen's contrast. However, over time, you may
need to make a minor adjust.
Procedure
1. Unscrew the back panel of the control unit.
2. Locate the control screw.
3. Using a flathead screw driver, carefully rotate
the adjustment screw to brighten or darken
the LCD screen's contrast.
4. Replace the back panel.

Replacing the Injector/Fuel Pump Fuse

This fuse is only used to protect the fuel injectors
and fuel pump and does not interrupt power for
the remainder of the circuitry of the MCU. Access
the fuse from the back of the control unit.
The fuse is an 8 amp fast blow AGC 8 fuse.
Procedure
1. Unscrew the back panel of the control unit.
2. Locate the fuse.
3. Carefully remove the old fuse from the clips.
4. Replace the old fuse with a new
8 amp fast blow AGC 8 fuse.
5. Replace the back panel.
6. Discard the old fuse.
Adjust contrast
Back of Control Unit
Back of Control Unit
Back of Control Unit
Active Fuel Injector Tester User Guide
Maintenance
Screws
Fuse
41