Daewoo MATIZ Service Manual page 1176

9T – 24 IMMOBILIZER ANTI-THEFT SYSTEM
KEY STATUS ERRORS (FENIX 5MR)
The following KEY STATUS messages may be shown
on the scan tool after commanding FIRST KEY COD-
ING and KEY ADD:
D IGNITION OFF STATUS. This message informs the
technician that the ignition is OFF during the key cod-
ing process. Turn the ignition ON during key coding,
but do not start the engine.
D KEY IS OCCUPIED. Only five keys may be coded. If
a new key is desired, the previous key codes must be
deleted. Up to five keys may then be authorized.
D ALREADY AUTHORIZED. Key coding is being at-
tempted with a key that is already authorized.
D ERROR NO. A3, A4, A5. There is no communication
between the transponder in the ignition key and the
detection coil. Follow the steps below to diagnose the
problem:
1. Try a different key. If a different key works, the
problem is in the original key.
2. If trying a different key results in the same er-
ror message, replace the detection coil.
D INVALID KEY. The communication between the im-
mobilizer control unit and the key transponder has not
validated the key. Follow the steps below to diagnose
the problem:
1. Code the key. Refer to "Key Coding Proce-
dure" in this section.
2. If the same message is received after key
coding, check the connection of the detection
coil.
3. If the detection coil is okay, replace the immo-
bilizer. Refer to "Immobilizer Control Unit" in
this section.
D NO TRANSPONDER DETECTED. The fault may be
in ignition key transponder, the detection coil, or the
immobilizer. Follow the steps below to diagnose the
problem:
1. Try a different key. If a different key works, the
problem is in the original key.
2. If trying a different key results in the same er-
ror message, check the connection of the
detection coil.
3. If the connection of the detection coil is okay,
disconnect the detection coil and use an ohm-
meter to check for an open detection coil.
4. If the detection coil is not open, replace the
immobilizer control unit. Refer to "Immobilizer
Control Unit" in this section.
KEY STATUS ERRORS (SIRIUS D3)
The following KEY STATUS messages may be shown
on the scan tool after commanding FIRST KEY COD-
ING and KEY ADD:
D IGNITION OFF STATUS. This message informs the
technician that the ignition is off during the key coding
process. Turn the ignition ON during key coding, but
do not start the engine.
D KEY IS OCCUPIED. Only five keys may be coded. If
a new key is desired, the previous key codes must be
deleted. Up to five keys may then be authorized.
D ALREADY AUTHORIZED. Key coding is being at-
tempted with a key that is already authorized.
D ERROR NO. A3, A4, A5. There is no communication
between the transponder in the ignition key and the
detection coil. Follow the steps below to diagnose the
problem:
1. Try a different key. If a different key works, the
problem was in the original key.
2. If trying a different key resulted in the same error
message, replace the detection coil.
D INVALID KEY. The communication between the im-
mobilizer control unit and the key transponder has not
validated the key. Follow the steps below to diagnose
the problem:
1. Code the key. Refer to "Key Coding Procedure" in
this section.
2. If the same message is received after key coding,
check the connection of the detection coil.
3. If the detection coil is okay, replace the immobiliz-
er. Refer to "Immobilizer Control Unit" in this sec-
tion.
D NO TRANSPONDER DETECTED. The fault may be
in ignition key transponder, the detection coil, or the
Immobilizer. Follow the steps below to diagnose the
problem
1. Try a different key. If a different key works, the
problem was in the original key.
2. If trying a different key resulted in the same error
message, check the connection of the detection
coil.
3. If the connection of the detection coil is okay, dis-
connect the detection coil and use an ohmmeter to
check for an open detection coil.
4. If the detection coil was not open, replace the im-
mobilizer control unit. Refer to "Immobilizer Control
Unit" in this section.
DAEWOO M–150 BL2