RIEJU Marathon 125 PRO User manual

Índice
KA
Marathon 125 PRO E4
On Board Diagnostic (OBD)

Índex
Index
Introduction........................................................................................3
System of diagnostics......................................................................5
Specific Use ..................................................................................................................6
0/000.160.6022 – SUPPLEMENT INSTALLATION OBD E4....................................6
0/K00.160.6000 – KIT OBD READER WITH HARNESS SUPPLEMENT ...............7
Connecting OBD to the motorcycle .............................................................................7
Error Codes ......................................................................................9
Error P0601..................................................................................................................10
Error P0335..................................................................................................................12
Error P0117 y P0118...................................................................................................13
Error P0351 y P2300...................................................................................................15
2

Introduction

Introduction
This document describes the characteristics of the On Board Diagnostic system
(OBD) used by the ECU and assembled on the 2017 Marathon Euro 4 PRO.
The OBD system checks and shows one or more faults concerning:
• Emission up to Euro 4 limits.
• Engine power limitation.
On this document you can find all information needed to solve the OBD Errors
found on the bikes.
The components checked by the OBD System are:
Device
Check
Type
CDI
Key in ON position
Internal
Pick-Up sensor
Key in ON position and engine
running
Sensor
Engine temperature
sensor
Each 500 µS
Sensor
Coil primary circuit
Each 125 µS
Actuator
4

OBD System

OBD System
The ECU is provided by the OBD system, when the OBD detects a failure it
shows the following symbol on the dashboard:
To know the cause of the failure you will need to connect to the ECU with a
OBDII reader, this tool can be show the diagnostic Error and erase it, once the
error has been erased the symbol on the dashboard will switch off, if after
erasing the failure the symbol continues it means that the problem is not solved.
When the problem disappears, the error is automatically erased after 10
complete cycles of use (bike running around 5 minutes), for example if one
customer unplugs the temperature sensor switch the error symbol will appear, if
they reconnect the connector the error will disappear after 10 uses.
Specific tool
To connect the bike at the OBDII reader is necessary have on harness adapter
to connect the standard connector of the bike to the connector SAE J1962 Type
A use on the OBDII readers.
Rieju has the next part available to use the OBD systems:
0/000.160.6022 – HARNESS SUPPLEMENT OBD E4
6

System for auto diagnostics
0/K00.160.6000 – KIT OBD READER WITH HARNESS SUPPLEMENT
If you have a standard OBD reader you will need only the harness supplement
to connect it with the ECU of the bike. If you dont have an OBD reader Rieju
suggest use the KIT OBD READER WITH HARNESS SUPPLEMENT, this kit
has been tested on Rieju bikes and its operation is guaranteed
Connection OBD reader with the bike
The OBD connector is placed under the seat next to the battery cables.
7

OBD System
1. Check that the key is in OFF position.
2. Take out the cap protection.
3. Plug the OBD harness supplement with the main harness.
4. Plug the OBD reader on the harness.
5. Turn ON the key (it will not necessary run the bike).
When the key is in the ON position the OBD reader will switch ON
automatically. Look at the OBD reader instructions to know the error codes and
erase it if necessary.
If the OBD reader does not switch ON, and the OBD reader is not supplied by
Rieju it’s possible that your OBD reader is not compatible with the OBD II
system and you will need replace it.
If the OBD reader is provided by Rieju but it cannot switch ON please check the
battery is correctly connected and is full charged, check the fuse of the main
harness and the harness supplement. If the problem continues contact with the
Rieju after sales department.
8

Error code

Error code
Once the OBD reader is connected with the ECU we can found the following
error code:
Code
Component
Error
P0601
ECU
Internal error
P0335
Pick-up sensor
Open circuit or value out of tolerances.
P0118
Engine temperature
sensor
Resistance value on the limits.
P0117
Engine temperature
sensor
Resistance value under limits.
P0351
Coil
Primary resistance value on the limits.
P2300
Coil
Primary resistance value under limits.
P0601 error:
This fail means an internal ECU fail, check the following points:
1.- Check the correct status of the battery.
Nominal voltage will 12,5 V en DC
Clean the terminal and check the correct contact between the terminals and the
harness.
Put the key in ON position and run the bike, with a multimeter in 20V DC
position check the correct charge of the battery.
•Multimeter will show one value between
13,5 and 15V.
If the battery doesn’t have the correct charge
level the electronics will not work correctly and
show an internal error code.
Once the battery is checked, and replaced if necessary, erase the error with the
OBD reader. Switch ON the bike and run it, if the Error appears other time
check point 2.
10

Error code
2.- Check the harness continuity.
With one multimeter, in position 20V DC checks the harness continuity.
Put the key in ON position and check the voltage between the cables Purple
(C1) and black (A1) on the ECU connector, if the voltage values are under
12,5V check the pin status and the continuity of the cables purple and black. If
the cables are cut off replace the harness.
3.- Change the ECU.
If all the checks before are OK and the error continues change the ECU by one
new part. Check that the new ECU has the marks “WR4”.
WR4
11

Error code
P0335 error :
This error show a fail on the pick-up sensor, the points to check will be the next:
1.- Whit the multimeter in 2KΩposition check the pick-up resistance (wires red
and White on the engine)
Unplug the connector of the engine and measure directly on the pins, the
resistance value will 265 Ω ± 20%, if the values found are out of tolerance
change the magnetic wheel fly.
2.- If the resistance values found are corrects check the continuity of the next
wires:
Yellow / Black: Wire that connect the pick-up connector and the pin C2 on the
ECU connector.
White / Red: Wire that connect the pick-up connector and the pin C8 of the ECU
connector.
12

Error code
P0117 and P0118 errors:
These errors show a fail on the engine temperature sensor. This sensor is a
NTC, so the resistance value change on function of the temperature, for this
reason is very difficult to do an exact control of the resistance values. The next
points to check are:
1.- Unplug the temperature engine sensor, with one multimeter in 20KΩposition
check the resistance value on the engine temperature sensor.
If the multimeter shows short-circuit or open-circuit changes the temperature
sensor and erase the OBD error.
2.- Switch of the bike and put one resistor of 1KΩ directly on the harness
temperature connector (like a show on the picture), with the OBD reader erase
the error and switch on the bike if the error disappears change the temperature
sensor, if the error appears another time check the point 3.
Conector
R = 1K Ω
13

Error code
3.- With one multimeter check the continuity of the following wires:
Yellow / Black: Wire that connect the temperature sensor connector and the pin
C2 on the ECU connector.
Blue / Black: wire that connect the temperature sensor connector and the pin
C7 on the ECU connector.
If the continuity on one of these wires is Not OK, check the pin status and
replace the harness if necessary.
14

Error code
P0351 and P2300 error:
These errors show a fail on the engine coil, the points to check are the next:
1.- Check that the coil is correctly assembled and connected, the contact is
clean and without oxide or dust that can affected the contact resistance.
2.- Check the coil resistance, with one multimeter in 200Ω measure the
resistance of the primary circuit (check picture), the resistance can be between
0,2 and 1 Ω.
If the values found are incorrect change the coil, erase the error with the OBD
reader and run the bike to confirm that the error is complete erase. If the error
continues check the point 3.
Note: If the multimeter doesn’t have a good quality the resistance value found
can vary and the value shown will different to the real value of the part (Values
up to 1Ω) this incorrect value can mislead the mechanic and reject a perfectly
good part.
15

Error code
3.- With one multimeter check the continuity of the following wires:
Orange: It is the wire that connects the pint of the coil with the pin B1 of the
ECU connector.
If the continuity of the wire is Not OK, check the pin status and replace the
harness if necessary.
16

RIEJU, S.A. c/.Borrassà, 41 E-17600 FIGUERES, GIRONA (SPAIN)
Telf. [phone] Fax [phone] www.riejumoto.com / e-mail [e-mail]