Self-Diagnosis Malfunction Codes - Yamaha XT660R 2004 Service Manual

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys

SELF-DIAGNOSIS MALFUNCTION CODES

When a system malfunction occurs, the malfunction code number is displayed on the multifunction
display and is indicated by the immobilizer system indicator light flash patterns.
Malfunction
Part
code
Immobilizer unit
51
Immobilizer unit
52
Immobilizer unit
53
Immobilizer unit
54
Immobilizer unit
55
ECU
56
Immobilizer system indicator light malfunction code indication
Digits of 10: on for 1 second and off for 1.5 seconds.
Digits of 1: on for 0.5 second and off for 0.5 second.
Example: multifunction code 52
Light on
Light off
email: info@motomatrix.co.uk
IMMOBILIZER SYSTEM
Symptom
Code cannot be transmitted 1) Objects that interrupt radio
between the key and immo-
bilizer unit.
2) Immobilizer unit malfunction
3) Key malfunction
Codes transmitted between 1) Signal received from other
the key and immobilizer unit
do not match.
2) Signal received from unregis-
Code cannot be transmitted 1) Noise interference or discon-
between the ECU and
immobilizer unit. 2) Obstruction due to radio wave
3) Disconnected communication
4) Immobilizer unit malfunction
5) ECU malfunction
Codes transmitted between 1) Noise interference or discon-
ECU and immobilizer unit
do not match. 2) Obstruction due to radio wave
3) Immobilizer unit malfunction
4) ECU malfunction
Key code registration mal- Same standard key was
function attempted to be registered two
consecutive times.
Unidentified code is Noise interference or discon-
received. nected lead/cable.
8 - 57
Cause
waves exist around the keys
or antennas.
transponder (failed to recog-
nize code after ten consecu-
tive attempts).
tered standard key.
nected lead/cable.
noise.
harness.
nected lead/cable.
noise.
(When used parts from other
motorcycles are used, the
code re-registering key is not
registered in the ECU.)
– +
ELEC
Action
1) Keep magnets, metal,
and other immobilizer
system keys away from
the keys and antennas.
2) Replace the main
switch/immobilizer unit.
3) Replace the key.
1) Place the immobilizer
unit at least 50 mm
away from the transpon-
der of other motorcy-
cles.
2) Register the standard
key.
1) Check the wire harness
and connector.
2) Replace the main
switch/immobilizer unit.
3) Replace the ECU.
1) Register the code re-
registering key.
2) Replace the main
switch/immobilizer unit.
3) Replace the ECU.
Register a new standard
key.
1) Check the wire harness
and connector.
2) Replace the main
switch/immobilizer unit.
3) Replace the ECU.