2008 GREAT WALL FLORID radio

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Immobilizer System
Immobilizer system composition
This vehicle's engine immobilizer system consists of a theft deterrent ECU assembly, a theft deterrent coil as-
sembly, and two theft deterrent converter assemblies. The theft deterrent coil assembly is put on the head of
ignition lock cylinder, with the other end connected to the theft deterrent ECU assembly. The two theft deterrent
converter assemblies are separately installed inside the plastic handles\
of the two keys.
1. Position diagram
All the components of immobilizer system are assembled on the overall vehicle except for the theft deterrent
converter assemblies inside the keys. They achieve communication functions via the wire harness connections.
The following figure shows the position of each component in the overall\
vehicle.
Theft deterrent controller
Ignition lock key
Theft deterrent coil
Steering column
2. Theft deterrent controller
The theft deterrent controller assembly mainly consists of a microprocessor and peripheral components. It com-
municates with the password transmitter assembly and engine ECU. The theft deterrent controller assembly
communicates with the engine ECU via the W wire, while communicating with the theft deterrent transponder
assembly via radio frequency. The theft deterrent controller connects with the scanner via the K wire. Through
the scanner, it can initiate matching, state controlling, and malfunction diagnosti\
c on the immobilizer system.
3. Theft deterrent coil
The theft deterrent coil assembly is installed on the ignition lock cylinder, the other end of wire harness
plug is connected to the theft deterrent controller assembly. The theft deterrent coil assembly can generate
an electromagnetic field to achieve communication between the theft deterrent controller assembly and the
password transmitter assembly.
4. Transponder
The theft deterrent transponder is installed inside the key handle. It has no power supply, maintains a small size,
and long use life. It acquires electric energy and transmission signals using the stimulation of the electromagnetic
field generated by the theft deterrent coil, so as to communicate with t\
he theft deterrent controller assembly.

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Display characterMalfunctionSolutions
ERR3Disc is placed upside downEject the disc and reload
ERR4Incompatible disc file or formatCheck the disc format
ERR1
ERR1Disc structure errorEject the disc and replay
Trouble code
Electrical connection diagram
SymptomsCausesSolutions
The sound quality is poor or
distorted
Speaker's connection wire touches the
vehicle body
Check the speaker's connection wire
"MUTE" wire touches the metal parts
of the vehicle body
Ensure the telephone silence control wire is
insulated from the vehicle body
A connection error between the
ignition coil ACC and positive power
line "BATT"
Please refer to the "Eelectrical connection
diagram" to correct the connection
Radio antenna
12
345
678
PinDefinition
1Karaoke control wire
2Microphone audio output
3Power supply (+)
4Microphone audio ground cable
5Auxiliary left audio output
6Auxiliary right audio output
7Auxiliary audio ground cable
8Power supply ground cable
PinFunction
AB
1Linear control ground
cableRear horn RH (+) (Violet)
2Mute (Pink)Rear horn RH ( - ) (Violet/Black striped)
3Linear controlFront horn RH (+) (Grey)
4Connected ignition
swith (Red)Front horn RH ( - ) (Grey/Black striped)
5Automatic antenna
(Blue/White)Front horn LH (+) (White)
6Lighting wire
(Brown)Front horn LH ( - ) (White/Black striped)
7to engine battery
positive (+) (Yellow)Rear horn LH (+) (Green)
8Ground cable (Black)Rear horn LH ( - ) (Green/Black striped)
ISO pin definition

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Head unit ISO interface definition
PinPin definition
1Power supply ground cable
2Headlight diagnostic
3Ignition diagnostic
4Mute diagnostic
5Power supply +
6Radio antenna power supply control
7Key-drive
8Key-drive ground cable
915 A fuse
1015 A fuse
PinPin definitionPinPin definition
11Rear left audio output -21Disc changer communication wire (reserve)
12Front left audio output -22Power supply ground cable (reserve)
13Front right audio output -23Communication wire (reserve)
14Rear right audio output -24Disc changer right-channel output (reserve)
15Rear left audio output +25Power supply + (reserve)
16Front left audio output +26Audio ground cable (reserve)
17Front right audio output +27Key-drive ground cable
18Rear right audio output +28Amplifier control
19Disc changer left-channel output (reserve)29Key-drive B
20Ignition diagnostic (reserve)30Key-drive A
DVD Player
Head unit outside view

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TFT display screen common faults and solutions
SymptomsCausesSolutions
No image is shown on the
display screen, only a warning
image
Parking control wire "PRK SW" is not
properly connected
Please refer to the "Equipment connection
drawing" to correct the connection
Abnormal display status, like
pulsing lines, appear in the
image
The DVD output image format does not
match the display screen formatChange the screen format to automatic
Some non-genuine discs’ actual display
format do not match the labeled formatUse a genuine disc
Video wire is damaged Replace the video wire
Video wire connection error Please refer to the "Equipment connection
drawing" to correct the connection
Displayed characters are
messed up or displayed
incorrectly
Incorrect operation Shutoff and restart, or switch to another
source and then try again
SymptomsCausesSolutions
Poor lock channel effect
Automatic antenna fails to extend
Check if the radio reception automatic
a n t e n n a ' s c o n t r o l w i r e A N T. C O N T i s
properly connected. Please refer to the
"Equipment connection drawing"
Failure to connect the radio reception
antenna
P r o p e r l y c o n n e c t t h e r a d i o r e c e p t i o n
antenna. Please refer to the "Equipment
connection drawing"
Local search function is in the on-state Switch off the local search function, please
refer to the "Local search"
Radio reception failure and solution
DVD playing faults and solutions
SymptomsCausesSolutions
Cannot insert discThere is a disc in the playerEject the disc from the inside of the player
and insert a new one
Disc is unable to play
Disc is scratched and unable to be readReplace the disc
Disc is too dirty or wetClean the disc with a soft cloth
Laser head is dirtyClean the laser head with a laser head
cleaning disc
The disc is not supported by this playerCheck the disc type
Child lock grade too highChang the child lock settings
The read side of the disc is inserted
upside-down
Insert the disc into the player with its label
side up
The region code of the disc does not
match the region code of the player
Use discs that have a region code identical
to this player's
Subtitle does not displayThe disc does not contain a subtitle fileUse discs containing a subtitle file
Language or subtitle switch
does not work
The disc only has one type of language
or subtitle
Use discs containing multi-channel voice
or subtitle files
Multi-angle switch does not
work
The disc only has one visual angleUse discs that support multi-angle play
The section in play does not support
multi-angle
Select a section that supports multi-angle
play