Downloaded from www.Manualslib.com manuals search engine 153Vehicle Body Electronic System
High mounted brake lamp
Rear defroster positiveRear wiper motor
Trunk lock motor, door lamp switch
Opener switchRear defroster negative
Theft deterrent indicator lampCombination meter CD/DVD
Air conditioner speed adjuster, AC switch, rear defroster switch
Air conditioner temperature sensorF r o n t P a s s e n g e r s i d e airbag assembly
BlowerGlove box lighting
Cigarette lighter and lighting
Airbag ECU assembly 2
Diagnostic port
Acceleration pedal
Power rearview mirror switch, light brightness regulator
Trunk door wire harness
Central lock controller
Dashboard wire harness
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Connected engine
compartment wire harness
Connected engine
wire harness
Connected cab fuse boxConnected engine
compartment wire harness
C01
C02
C03
Wire Harness Plug-in Connectors and Pin Function Diagram
Connector 1
Connected cab fuse box A-20Connectied dashboard
wire harness
(Luxury)
(Elite)
(Comfort)
(Luxury)
(Elite)
(Comfort)
Downloaded from www.Manualslib.com manuals search engine 157Vehicle Body Electronic System
Connected cab fuse box C-14Connected dashboard
wire harness
C05
C06
Connector 2
C04
Connected cab fuse box B-18 Connected dashboard
wire harness
(Luxury)
(Elite)
(Comfort)
(Luxury)
(Elite)
(Comfort)
(Elite)
(Comfort) / (Luxury)
(Elite)
(Comfort) / (Luxury)
(Comfort) / (Luxury)(Comfort) / (Luxury)
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Connected cab fuse box D-16Connected dashboard wire harness
Connector 3
(Elite)(Elite)
C07
Connected dashboard wire harnessConnected cab fuse box E-8
C08
Connected cab fuse box H-1Connected dashboard wire harness
(Comfort) / (Luxury)(Comfort) / (Luxury)
(Elite)(Elite)
C06
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Connected dashboard
wire harness B
Connected engine compartment
wire harness B
Connected dashboard
wire harness A
Connected engine wire
harness A (white)
Connected dashboard
wire harness B
Connected engine
wire harness B
C10
C 11
C12
C13
Connector 5
(Elite)(Elite)
(Elite)(Elite)
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Connected vehicle
body wire harness B
Connected dashboard
wire harness B
Connected vehicle
body wire harness
Connected engine
compartment wire harness
C15
C16
C17
Connector 7
Connected dashboard
wire harness A
Connected vehicle body
wire harness A
(Comfort)/(Luxury)(Comfort)/(Luxury)
(Luxury)
(Elite)
(Comfort)
(Luxury)
(Elite)
(Comfort)
Downloaded from www.Manualslib.com manuals search engine GWFLORID Maintenance Manual188
not necessarily mean that engine start failure is due to a immobilizer system malfunction. The reasons for start-
ing engine failures are numerous, including factors like fuel, gas, fire, electricity, wires, etc. If the engine cannot
start, first check if the immobilizer system is working normally. This can be judged by looking at the flashing
theft deterrent indicator lamp which is located on the dashboard in front of the driver seat: Insert the key into the
lock cylinder and turn it to the "ON" position. If a legal key is used to start the engine, once the warning lamp is
connected to the ON end and the transponder is confirmed, the LED will remain unlit. Then when the ON end is
disconnected and the key is pulled out, the LED will shine for 0.25 s and darken for 4 s, as to act as a warning.
If an illegal key is used to start up the engine or there is something wrong with the system, the alarm indicator
lamp will shine for 0.25 s and darken for 4 s. If all is normal, then check the other parts of the engine. If abnor-
mal, first perform immobilizer system troubleshooting. A scanner can be used to judge if the immobilizer system
is working normally, but the precondition is that the scanner must be able to establish communication with the
theft deterrent controller.
1. If communication cannot be established, consider the following:
(a) Check whether the battery voltage is higher than 9 V
(b) Check whether the scanner plug is well contacted to the vehicle socket
(c) Use a multimeter to check whether the 7 pin of the OBD-II plug (diagnostic plug) is connected to the theft
deterrent controller's A7 pin
(d) Check whether the power supply of the theft deterrent controller is normal. (Use a multimeter to measure
whether the voltage of the theft deterrent controller's socket A1 pin and A2 pin is higher than 9 V)
(e) Then adopt the substitution method, which is to replace the theft deterrent controller to check if there is
anything wrong with the theft deterrent controller.
• If the failure is related to the theft deterrent controller, change it and initiate re-matching.
• If the failure has nothing to do with the theft deterrent controller, remove the electronic controller which
is connected to the alarm's K wire, such as the ABS controller, engine electrojet controller, airbag ECU
assembly, etc., as to ascertain if the present fault is caused by the wire harness connected with the theft
deterrent controller's K wire.
2. If communication can be established
Connect the scanner to the vehicle diagnostic port. Insert the key into the steering lock, and turn it to the "ON"
position, then select the scanner to check the immobilizer system's trou\
ble code.
3. Security system troubleshooting
Investigate the problem and perform troubleshooting according to the tro\
uble code on the scanner:
Trouble
code
Code
significanceFailure causeTroubleshooting methods
B1000Theft deterrent
controller
internal
malfunction
Theft deterrent coil open
circuit or short circuit. Theft
deterrent controller internal
malfunction.
Check whether the theft deterrent coil's connecting plug and 1.
the theft deterrent controller is well connected.
Check whether the theft deterrent coil's wire harness plug is sliding 2.
or touching each other.
R e m o v e t h e t h e f t d e t e r r e n t c o i l p l u g , a n d t h e n u s e a 3.
multimeter to check the resistance between the B1 and B2
pins. The normal resistance is about 5-30 Ω. If the resistance
is close to zero, that means the coil has been short circuited.
If the resistance is infinite, then it means the coil's circuit is
open. Measure the resistance between pins B1 and B3, and
B2 and B3, normally they are infinite. If the resistance gains
a certain value, then it means the coil is short circuited or
leaking electricity.
If there is nothing wrong with the coil, the next step is to 4.
check the theft deterrent controller. Adopt the substitution
approach, replace it with a non-matched new theft deterrent
controller or an theft deterrent controller which has been
reset (please refer to the immobilizer system component
replacement). Insert the key into the ignition lock and turn it
to the "ON" position and read the trouble code. If there is no
9000 failure, it means the replaced controller has an internal
malfunction, and the new replaced controller must be re-
matched.
