Gilera 633721 Workshop Manual page 256

Injection
Repair or replace the cable harness.
N.B.
A FAILURE OF THE REMOTE CONTROL SWITCH WOULD CAUSE THE PUMP ROTATION FAIL-
URE
10 - The positive power supply is conforming. Check the continuity between the pink-black wire of the
connector and pin 20.
Electric characteristic
Pink-black-20 =
Continuity
YES go to 12 NO go to 11
11 - Check the continuity of the pink-black wire in the two systems.
Electric characteristic
Pink-black (coil connector)-20 =
Continuity
YES go to 12 NO go to 13
12 - Check the earth insulation of the negative line.
Electric characteristic
20-23 =
Ω infinite (>1MΩ)
INJEC - 256
Nexus 500 euro 3