Advertisement
TUONO V4 R a-PRC ABS
On the fork, right stanchion, next to the brake cal-
liper support.
Connector location (if available):
Inside the support (2-ways black).
Pin-out:
•
PIN 1 - Power negative/Signal nega-
tive (white)
•
PIN 2 - Power positive/Signal positive
(white/brown)
DIAGNOSTIC TOOL
Parameters:
Speed (km/h) - Front wheel speed.
DIAGNOSTIC TOOL: ELECTRICAL ERRORS
C1002 Front speed sensor: short circuit.
It activates when the two wires are shorted one with the other or if the negative wire is shorted to positive
(e.g. 12V)
Troubleshooting:
Check insulation of white cable and white/brown cable: if NOT OK, restore cable harness; if OK, check
positive insulation (12V) of the white cable. If NOT OK, restore; if OK, check with sensor disconnected
and key ON that power voltage is slightly below battery voltage. If OK, change the sensor; if NOT OK,
change the ABS control unit
C1003 Front speed sensor: electric malfunction.
Missing sensor or interrupted wire or short circuit to negative of one of the two wires.
Troubleshooting:
Check the sensor connector and the ABS control unit connector. If they are NOT OK, restore the con-
nectors. If they are OK, check continuity of the white/brown cable between PIN 2 of the sensor on the
cable harness side and PIN 3 if NOT OK restore cable harness, if OK check continuity of the white cable
between PIN 1 of the sensor on the cable harness side and PIN 6 of the ABS control unit connector. If
NOT OK, restore cable harness; if OK, check the white/brown cable ground insulation. If NOT OK
restore cable harness; if OK, check the white cable ground insulation. If NOT OK restore cable harness;
if OK, check with sensor disconnected and key ON that power voltage is slightly below battery voltage.
If OK, replace the sensor; if NOT OK, replace the ABS control unit
C1008 Front speed sensor: electric malfunction.
It activates when the positive wire is shorted to ground.
Troubleshooting:
Check continuity of white/brown cable across wiring-side sensor PIN 2 and ABS connector PIN 3: if
NOT OK, restore cable harness; if OK, check ground insulation of the white/brown cable. If NOT OK,
Electrical system
ELE SYS - 159
Advertisement
