Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Evaluating Measured Value Blocks




Display group overview:

Display group number Indicated on display
001 1 = Speed signal from speedometer
2 = Voltage terminal 30

002 1 = Condition of input Reverse light switch
2 = Condition of input terminal 15

003 1 = GPS-antenna
2 = Condition remote supply
GPS-antenna

004 1 = External display
2 = Communication function to external display

005 1 = Data-bus
2 = Communication function
Information data-bus

006 1 = left
2 = Speed (GALA) in km/h

007 1 = Content of function status register

008 1 = front speaker
2 = Condition of front speaker

010 1 = Telephone
2 = Condition of input telephone mute
3 = Telephone
4 = Condition of output telephone mute

Measuring value block 001







Measuring value block 002







Measuring value block 003







Measuring value block 004







Measuring value block 005







Measuring value block 006







Measuring value block 007







Measuring value block 008







Measuring value block 010