Malfunction and Remedies
Searching for malfunctions using R-Touch
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8.4 Colour codes for electric wiring
Colour codes for electric wiring
brown Earth
red Pin 30 (continuous current)
pink Pin 15 (ignition current)
yellow 8.5 V
violet 12 V
blue Digital signal lines (ON/OFF)
green Analogue signal lines (changing sensor values)
grey All lamps “E” light bulbs and “H” warning devices (buzzer)
white Electrical motors and internal wiring, miscellaneous
orange Control lines for all valves and solenoids (all „Y“)
Feature: twisted cables
white (twisted) = CAN-high
brown (twisted) = CAN-low
twisted together = CAN bus data line
8.5 Searching for malfunctions using R-Touch
Some malfunctions are indicated on the R-Touch by warning icons. In case of elec-
trical or electronic problems, the components concerned are displayed including the
designation of the component.
Example:
= Communications problem with control device A15 = com-
puter ESR E (refer to the table below).
= Analogue signal out of range.
= Line break or short circuit found.
= Internal memory fault EEPROM.
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