Operation
Anti-Theft Alarm Operation
Fuel flap release switch
A feed from fuse 2 in the passenger compartment fusebox is connected on a PS
wire to the fuel flap release switch. When the switch is operated and the alarm is not armed the feed passes from the switch and is connected on a PR wire to the fuel flap release solenoid.
The feed energises the solenoid retracting the plunger and opening the fuel flap The fuel flap release solenoid is connected on an RU wire to pin C0664-3 on the BCU. The BCU completes the earth path from the solenoid only if the alarm is not armed.
Vehicle horns
The contacts of the horn relay in the engine compartment fusebox, are connected to the LH and RH horns by PG wires. The LH horn is earthed by a B wire connected to earth point C0564. The RH horn is earthed by a B wire connected to earth header C0018 Where the vehicle horns are used by the anti-theft alarm system the horn relay coil is connected to the BCU via header C0286 by a PO wire. To operate the horns the BCU earths the PO wire which energises the relay and connects the feed from fuse 16 in the engine compartment fusebox to the horns
Battery Backed-Up Sounder (BBUS)
Where fitted, operation of the BBUS is controlled by the BCU
The BBUS is armed and disarmed on a PG wire between BCU pin C0661-14 and the BBUS. In the armed condition the BBUS monitors the power feed from the passenger compartment fusebox and automatically sounds if it is interrupted To disarm the BBUS the BCU supplies a 12 volts power feed on the PG wire. To arm the BBUS, the BCU disconnects the power feed.
The BCU sounds the BBUS using a PO wire between BCU pin C0661-3 and the BBUS. In addition to sounding the BBUS when the alarm system has been triggered, armed and disarmed, the BCU can also sound the BBUS to produce mislock and EKA warnings. The BCU normally maintains a 12 volts power feed to the BBUS on the PO wire. To sound the BBUS the BCU disconnects the power feed.
Alarm sounder unit
When fitted, and the IDM and the BCU determine that alarm sounder unit operation is required, the IDM provides an earth for the applicable relay coil in the passenger compartment fusebox This energises the coil closing the relay contacts.
With the relay contacts closed, a feed from fuse 21 in the passenger compartment fusebox passes through the relay contacts and from the fusebox on a PB LHD/RU RHD wire, via header C0293 (RHD only), to the alarm sounder unit.
On LHD vehicles, the alarm sounder unit is connected to earth header C0552 on a B wire.
On RHD vehicles, the alarm sounder unit is connected, via header C0288, to earth header C0018 on a B wire
Key in sensor
A feed from fuse 20 in the passenger compartment fusebox is connected on a P wire to header C0289 LHD/C0294 RHD. From the header the feed is connected on a P wire to the key in sensor
When the ignition key is inserted into the lock barrel the key in sensor contacts close. The feed passes through the sensor and is connected on a WP wire, via header C0293 LHD/C0289 RHD, to pin C0662-2 on the BCU.
A second connection from the key in sensor is connected on a PU wire via header C0285 LHD/C0294 RHD, to pin C0663-9 on the BCU This connection is used for the BCU to activate the switch illumination.
Body Control Unit (BCU)
A feed from fuse 13 in the engine compartment fusebox is connected on a PN wire to provide a permanent power supply to the BCU.
A feed from fuse 20 in the passenger compartment fusebox is connected on a P wire via header C0289 LHD/C0294 RHD to pin C0661-19 on the BCU.
A B wire connects BCU pin C0660-11 to earth header C0551.
Transponder coil
A feed from fuse 20 in the passenger compartment fusebox is connected on a GU wire to the transponder coil. The transponder coil is connected on an SR wire to pin C0661-18 on the BCU.
The transponder coil is connected on a B wire, via header C0286 LHD/C0288 RHD to earth header C0018 LHD/C0017 RHD.
Radio Frequency (RF) receiver
The RF receiver is connected on a PS wire to pin C0661-5 on the BCU and on a BN wire to pin C0661-6 on the BCU.
Infra-red receiver (Korean vehicles only)
The infra-red receiver is located in the front interior lamp. A feed from fuse 20 in the passenger compartment fusebox is connected on a P wire from header C0289, via header C0723, to the front interior lamp. The lamp is connected on a B wire via splice joint A4 to earth header C0706.
The front interior lamp is connected on an RP wire to connector interface C1461-2/C0674-2 From the connector interface the connection continues on a BN wire to pin C0661-6 on the BCU.
LH front door lock motor (LHD vehicles only)
The LH front door lock motor switch is connected on a UG wire to pin C0660-5 on the BCU and on a US wire to pin C0661-22 on the BCU.
The LH door switch is connected on a PW wire, via header C0287, to pin C0660-17 on the BCU.
The LH front door lock motor is connected on a B wire, via header C0288, to earth header C0017.
RH front door lock motor (RHD vehicles only)
The RH front door lock motor switch is connected on a UG wire to pin C0660-5 on the BCU and on a US wire to pin C0661-22 on the BCU.
The RH door switch is connected on a PW wire, via header C0285, to pin C0660-17 on the BCU.
The RH front door lock motor is connected on a B wire to earth header C0018.
RH front door lock motor (LHD vehicles only)
The RH door switch is connected on a PW wire to connector C0733-1/C0464-1 interface. From the connector interface, the wire changes to a PLG wire to header C0291 and from header C0291 on a PLG wire to pin C0660-4 on the BCU.
The RH door switch is connected on a B wire to earth header C0018.
LH front door lock motor (RHD vehicles only)
The LH door switch is connected on a PW wire to connector C0733-1/C0464-1 interface. From the connector interface, the wire changes to a PLG wire to header C0285 and from header C0285 on a PLG wire to pin C0660-4 on the BCU.
The LH Door switch is connected on a B wire to earth header C0017.
Tail door lock motor (LHD/RHD Vehicles)
The tail door open switch is connected on a PLG wire to pin C0660-4 on the BCU via header C0285. The boot/tail door switch is also connected on a B wire to earth header C0706.
RH rear door lack motor (LHD vehicles only)
The RH rear door switch is connected on a PLG wire to connector C0805-3/C0756-3 interface. From the connector interface the wire continues on a PLG wire to header C0291 and from the header to pin C0660-4 on the BCU. The RH rear door switch is connected on a B wire to earth header C0552.
RH rear door lock motor (RHD vehicles only)
The RH rear door switch is connected on a PLG wire to pin C0660-4 on the BCU via header C0285. The RH rear door switch is also connected on a B wire to earth header C0552.
LH rear door lock motor (LHD vehicles only)
The LH rear door switch is connected on a PLG wire to connector C0805-3/C0753-3 interface. From the connector interface the wire continues on a PLG wire to header C0291 and from the header to pin C0660-4 on the BCU. The LH rear door switch is connected on a B wire to earth header C0552.
LH rear door lock motor (RHD vehicles only)
The LH rear door switch is connected on a PLG wire to pin C0660-4 on the BCU via header C0285. The LH rear door switch is also connected on a B wire to earth header C0552.
Bonnet switch
The bonnet switch is connected on a PO wire from pin C0660-1 5 to the switch. The bonnet switch is connected on a B wire to earth header C0017 via header C0288.
Instrument pack
The instrument pack is connected on a BS wire to BCU pin C0661-20 This connection is used for the alarm LED operation.
Diagnostic socket
The BCU provides outputs to and receives inputs from the diagnostic socket on a K wire via header C0285 LHD/C0286 RHD, to BCU pin C0661-4.
Engine Control Module (ECM)
The ECM is connected to BCU pin C0661-10 on a LGS wire.
Ultrasonic modules
The BCU is connected to the front and rear ultrasonic modules from pin C0663-6 on a WB wire. The WB wire passes through splice joint A46 and is connected to the front ultrasonic module.
A second connection from the BCU on an SP wire from BCU pin C0663-8, passes through splice joint A44/A105 and is connected to the front ultrasonic module. A second SP wire is taken from splice joint A44/A105 and is also connected to the front ultrasonic module.
From splice joint A46 a WB wire is connected to the rear ultrasonic module. From splice joint A44/A105 two SP wires are connected to the rear ultrasonic module.
A B wire connects the front ultrasonic module to earth header C0707. A B wire connects the rear ultrasonic module to earth header C0706.