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Electrical system
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
DIAGNOSTIC TOOL: LOGIC ERRORS
C1101 Rear speed sensor: missing signal or speed measured too low in relation to the front
wheel.
Faulty sensor or missing tone wheel or excessive distance between the sensor and the tone wheel or
tone wheel with wrong number of teeth.
C1103 Rear speed sensor: missing signal or speed measured too low in relation to the front
wheel.
Faulty sensor or missing tone wheel or excessive distance between the sensor and the tone wheel or
tone wheel with wrong number of teeth.
C1105 Rear speed sensor: missing signal or different speed measured at the two wheels.
Faulty sensor or missing tone wheel or excessive distance between the sensor and the tone wheel or
tone wheel with wrong number of teeth.
C1107 Rear speed sensor: missing signal or different speed measured at the two wheels.
Faulty sensor or missing tone wheel or excessive distance between the sensor and the tone wheel or
tone wheel with wrong number of teeth.
C1109 Rear speed sensor: the signal works irregularly.
Faulty sensor or signal interference.
C1111 Rear speed sensor: the signal decreases periodically.
Possible tone wheel fault due to deformations or dirt; the surface of the wheel bearings may be deter-
iorated. In very rare cases, abnormal phonic wheel vibrations
ELE SYS - 162
TUONO V4 R a-PRC ABS
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