Most common problem with Volvo 2000-2003 dashboards is blinking board computer LCD in left dashboard corner. This IC exchange can solve this problem
Also you will need exchange 3K91D processor.
Processor S1D15206F00A1:
Direct RAM data display by display data RAM
• 4 gray-scale display
(Normally white in normal display mode)
RAM bit data (high order and low order)
(1,1) : gray-scale 3, black
(1,0) : gray-scale 2
(0,1) : gray-scale 1
(0,0) : gray-scale 0, white
• Binary display
(Normally white display is in normal mode)
RAM bit data
“1” : On and black
“0” : Off and white
• RAM capacity
132 × 160 × 2 = 42,240 bits
• Liquid crystal drive circuit
132 common outputs and 160 segment outputs
• High-speed 8-bit MPU interface (directly connectable
to the MPUs of both 80/68 series) /serial interface
possible
• A variety of command functions
Area scroll display, partial display, n-line reversal,
display data RAM address control, contrast control,
display ON/OFF, display normal/reverse rotation,
display all lighting ON/OFF, liquid crystal drive
power supply circuit control, display clock built-in
oscillator circuit control
• Lower power MLS drive technology
Built-in high precision voltage regulation function
• High precision CR oscillator circuit incorporated
• Very low power consumption
• Power supply
Logic power supply: VDD – VSS = 1.7 to 3.6 V
Liquid crystal drive power supply:
V3 – VSS = 3.4 to 14.0 V
• Wide operation temperature range: –40 to 85°C
• CMOS process;