ELEC
IMMOBILIZER SYSTEM
62
51
Error
code
Detection
IMMOBILIZER
UNIT
Symptoms
Cannot transmit code
between the key and
immobilizer unit.
Trouble
Measures
1) Objects that may keep off radio
waves exist around the keys and
antennas.
2) Immobilizer unit failure.
3) Key failure.
1) Keep clear of magnets,
metals and other keys
from the surroundings of
keys and antennas.
2) Replace the immobilizer
unit.
3) Replace the key.
52
IMMOBILIZER
UNIT
Codes do not match
between the key and
immobilizer unit.
1) Disturbed by other transponder.
Failed to verify continually for ten
times.
2) Unregistered sub key was used.
1)
Place the immobilizer
unit away more than 50
mm from the transpon-
der of other vehicle.
2)
Register the standard
key.
53
IMMOBILIZER
UNIT
Cannot transmit code be-
tween the ignitor unit and
immobilizer unit.
Noise interference or disconnected
lead/cable.
1) Obstruction due to radio wave
noise.
2) Error by disconnection of the
communication harness.
3) Immobilizer unit failure.
4) Ignitor unit failure.
1) Check the wire harness
and connector.
2) Replace the immobilizer
unit.
3) Replace the ignitor unit.
54
IMMOBILIZER
UNIT
Codes do not match be-
tween ignitor unit and im-
mobilizer unit.
Noise interference or disconnected
lead/cable.
1) Obstruction due to radio wave
noise.
2) Immobilizer unit failure.
3) Ignitor unit failure (When the
used parts from other vehicles
are used, the code re-registering
key ID is not registered to the
ECU.)
1) Register the code re-
registering key ID.
2) Replace the immobilizer
unit.
3) Replace the ignitor unit.
55
IMMOBILIZER
UNIT
Key code registration error.
Same standard key was attempted
to continuously two times register.
Prepare the new standard
key and register it.
56
ECU IGNITER
UNIT
Underfinition code is re-
ceived.
Noise interference or disconnected
lead/cable.
1) Check the wire harness
and connector.
2) Replace the immobilizer
unit.
3) Replace the ignitor unit.
SELF-DIAGNOSIS ERROR CODE INDICATION
When the system failure occurred, the error code number is indicated in the immobilizer system indicator
light blinks at the same time. The pattern of blinking also shows the error code.
Immobilizer system indicator light error code indication
Digit of 10: Cycles of 1 sec. ON and 1.5 sec. OFF.
Digit of 1: Cycles of 0.5 sec. ON and 0.5 sec. OFF.
<Example> 52
Light ON
Light OFF