Operation CHARM: Car repair manuals for everyone.

Trip Computer: Testing and Inspection

TESTING INSTRUCTIONS FOR ON-BOARD COMPUTER (GENERATION II)

These testing instructions are compiled in logical sequence, but the test steps could also be taken seperately. The specified pin numbers must be used - danger of short circuits
- Testing Requirements: The On-Board Computer II calling and storing in memory are according to operating instructions.
- Testers Required: Universal adapter with Connecting lead as well as BMVV service test unit (multimeter tests).
- Data stored in On-Board Computer II is cancelled with the connecting switch of the test adapter (between BC II wire harness plug and BC II).
- Functions in ignition lock pos. 0: No display background lighting, not possible to operate buttons.
R: Display beard illuminated, operation possible, code function free
15: Same as R, however also distanceltimelconsumption functions, code function locked.
50: Same as 15, but in this case the starting intedock must only function 6 seconds after taking away the term. 50 signal.
- Universal adapter HWB No. 81 12 9 425 091
Conn. lead wire hansess 26-pin 096
Conn. lead control unit 26-pin 097

Note: The type of coding plug can be called in ignition lock pocition 15 by pressing buttons 1 and 100 simultaneously. If calling is not possible, check power supply between pins 10 (B-) and 7 (term. 15).