PIAGGIO MP3 500 i.e. SPORT Service Station Manual page 373

MP3 500 i.e. SPORT Business_LT_ ABS-ASR_EU_USA (2015)
system
The detection of malfunctions may require more or less time depending on the type of fault. Error
detection logic foresees that for the errors to be diagnosed one or more conditions must persist within
a given time. If during this given time one of the conditions is missing but then it comes back, the timer
is reset and the system is no longer able to diagnose the error. The ABS system continues to be inactive
and the relevant warning light to flash.
When the ABS warning light turns on steady:
1. Connect the diagnostic tool.
- If the diagnostic tool is not communicating with the ABS control unit, check:
•
If there is ground on PIN 26 of the ABS control unit
•
if there is battery voltage on PIN 1
•
if there is battery voltage on PIN 20 with key «ON»
2. Check if there are errors.
A. If there are, refer to the table of errors;
B. If there are no errors, proceed with the activation of the ABS warning light
- If the ABS warning light is active, contact the technical service;
- If the ABS warning light is not active, check:
•
Connectors
•
Continuity of the cables
•
Fault of the ABS control unit
•
Fault of the instrument panel
Error Description
code
5D90 Front left wheel speed sensor - elec-
tric fault
5D91 Front left wheel speed sensor - dis-
continuity of the signal
5D92 Front left wheel speed sensor - the
signal declines frequently
5D93 Front left wheel speed sensor - no
signal or not plausible
5D94 Front left wheel speed sensor - no
accel. after pressure reduction.
5D95 Front left wheel speed sensor - iden-
tified speed excessive
5DA0 Rear wheel speed sensor - electric
5DA1 Rear wheel speed sensor - disconti-
nuity of the signal
5DA2 Rear wheel speed sensor - the signal
declines frequently
5DA3 Rear wheel speed sensor - no signal
or not plausible
5DA4 Rear wheel speed sensor - no accel.
after pressure reduction.
ERRORS DISPLAY TABLE
Possible tone wheel fault due to deformations or dirt; possible alterations on
the wheel bearing surface. In very rare cases, abnormal tone wheel vibra-
Faulty sensor, missing sensor or tone wheel, excessive distance between
the sensor and the tone wheel or tone wheel with wrong number of teeth.
Faulty sensor, missing sensor or tone wheel or excessive distance of the
Faulty sensor, tone wheel defect or with wrong number of teeth or wrong
fault
Possible tone wheel fault due to deformations or dirt; possible alterations on
the wheel bearing surface. In very rare cases, abnormal tone wheel vibra-
Faulty sensor, missing sensor or tone wheel, excessive distance between
the sensor and the tone wheel or tone wheel with wrong number of teeth.
Faulty sensor, missing sensor or tone wheel or excessive distance of the
Troubleshooting
Electrical fault in sensor or cable harness.
Faulty sensor or signal interference.
tions.
sensor regarding the tone wheel.
tyre size.
Electrical fault in sensor or cable harness.
Faulty sensor or signal interference.
tions.
sensor regarding the tone wheel.
Braking
BRAK SYS - 373