Land Rover Body And Paint Air Bag And Safety Belt Rover Manual
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Heater Lines Quick release connections to engine cooling system 1 Quick release connections to main heater2 Auxiliary climate control assembly3 In-line connections4 Auxiliary Climate ControlLesson 2 – Electrical 29Technical Training (G421237)
DISTRIBUTION SYSTEM Second row left face level air duct1 Cross-car air duct2 Second row right face level air duct3 Right C pillar air duct4 Third row right face level register5 Second row face level registers6 Third row foot level air duct7 Third row foot level registers8 Third row left face level register9 Left C pillar air duct10 (G421237) Technical Training30 Lesson 2 – ElectricalAuxiliary Climate Control
The distribution system consists of a network of air ducts that supply air from the outlets of the auxiliary climate control assembly to registers installed in: •The headliner, to the left and right of the second row interior lamp, to provide face level ventilation for second row seat occupants •The left and right C pillar finishers, to provide face level ventilation for third row seat occupants •The loadspace left side molding, to provide foot level ventilation for third row passengers. The registers can all be adjusted to control the direction and volume of the air flow. ACCM Electrical connector1 Blower switch2 Distribution switch3 Temperature switch4 The ACCM allows manual adjustment of the output from the auxiliary climate control assembly. The ACCM is installed in the headliner immediately behind the row 2 interior lamp. An integral control panel contains separate rotary switches for temperature, distribution and blower speed. When the ACCM is in manual mode, amber LEDs in the switch surrounds illuminate to indicate the current settings of the system and function symbols in the switch surrounds are illuminated when the side lamps or headlamps are on. Details of the switches on the ACCM control panel are as follows: •Temperature Switch: T h e s w i t c h c a n r o t a t e t h r o u g h 240°, from full cold to full hot. Minor detents allow fine adjustment of the switch. •Distribution Control Switch: T h e s w i t c h c a n r o t a t e through 120°. 5 primary detents define the distribution settings of: Feet only; 3 face/feet; face only. •Blower Switch: T h e s w i t c h c a n r o t a t e t h r o u g h 2 4 0°, from off to maximum speed. Eight primary detents define the off position and seven blower speeds. The ACCM is disabled when the auxiliary climate control switch on the ATCM is selected off. When the auxiliary climate control switch is selected to automatic or manual, the ACCM is enabled by the connection of a power feed from the ATCM. The same power feed also supplies the stepper motors in the auxiliary climate control assembly. When it is enabled, the ACCM operates as a slave unit to the ATCM. The ACCM sends status signals on the LIN bus to the ATCM, which replies with command signals of the required temperature, distribution and blower settings. The ACCM then outputs the necessary drive signals to the auxiliary climate control assembly. •In the automatic mode, the command signals are derived from the comfort strategy in the ATCM. The temperature setting is calculated from the mean of the two temperature settings on the ATCM. •In the manual mode, the command signals reflect the temperature, distribution and blower speed set by the switches on the ACCM control panel. Temperature control by the auxiliary climate control system may be compromised if the temperature settings on the ATCM are set to maximum hot or cold. Auxiliary Climate ControlLesson 2 – Electrical 31Technical Training (G421237)
ACCM Harness Connector C0695 ACCM Harness Connector C0695 Pin Details Input/OutputDescriptionPin No. InputPower supply from ATCM1 Input/OutputLIN bus2 OutputGround3 OutputRear blower module power drive4 InputBlower motor voltage sense5 InputCabin temperature sensor signal6 -Not used7and 8 OutputSensor ground9 OutputRear blower relay coil drive10 OutputSolenoid valve drive11 InputEvaporator temperature sensor signal12 (G421237) Technical Training32 Lesson 2 – ElectricalAuxiliary Climate Control
COOL BOX Cubby box lid1 Cubby box tray2 Container3 On/Off switch4 Thermoelectric cooler heatsink5 Fan6 Electrical connector7 The cool box is an open topped container with an aluminum liner and an insulating outer layer. A thermoelectric cooler is installed in the front of the container. The top of the container is covered by the cubby box tray and the cubby box lid. An electrical connector on the front of the cool box connects the cool box to the console harness. Operation of the thermoelectric cooler is controlled by an on/off switch on the top front edge of the container. A permanent battery feed is supplied to the on/off switch from the Central Junction Box (CJB). A Light Emitting Diode (LED) in the on/off switch is illuminated while the cool box is selected on. The thermoelectric cooler is a solid state heat pump that uses the Peltier Effect to cool the inside of the cool box. The Peltier Effect occurs when a direct current is passed through a circuit of two dissimilar conductors, which are connected together at two junctions; this causes one junction to become cold and one junction to become hot. The potential difference between the two conductors creates an electric field at each junction; when a current is then applied to the circuit the charge flows against the direction of the electric field at one junction, causing it to absorb heat, and with the direction of the electric field at the other junction, causing it to release heat. In thermoelectric coolers, a number of these circuits (known as couples) are connected together, in series, and sandwiched between ceramic plates, then connected to a heatsink and fan. On the cool box, the cold side of the thermoelectric cooler is attached to the aluminum liner and the heatsink and fan are installed on the insulating outer layer. Peltier Effect Circuit Conductor material A1 Hot junction2 Conductor material B3 Battery4 Cold junction5 Auxiliary Climate ControlLesson 2 – Electrical 33Technical Training (G421237)
When the on/off switch is selected on, the LED in the switch illuminates and power is supplied to the thermoelectric cooler. The couples in the thermoelectric cooler then transfer heat from the liner of the cool box to the heatsink, and the fan runs to cool the heatsink. (G421237) Technical Training34 Lesson 2 – ElectricalAuxiliary Climate Control
AUXILIARY CLIMATE CONTROL DIAGRAM NOTE: A = Hardwired connection; O = LIN bus Auxiliary Climate ControlLesson 2 – Electrical 35Technical Training (G421237)
Battery1 Fuse 22B, CJB2 Rear blower relay3 Rear blower4 Rear blower control module5 Solenoid valve6 ACCM7 Temperature blend door motor8 Distribution door motor9 ATCM10 Evaporator temperature sensor11 Thermoelectric cooler12 Cool box on/off switch13 Fuse 55P, CJB14 Fusible link 18E, Battery Junction Box (BJB)15 Fusible link 17E, BJB16 Fuse 51P, CJB17 (G421237) Technical Training36 Lesson 2 – ElectricalAuxiliary Climate Control
Cellular Phone Component Location Microphone1 Transceiver Module (TM)2 Cellular Phone Antenna3 Base plate adaptor4 Adaptor cradle5 Speaker6 Clock spring7 Steering wheel switches8 Amplifier9 IHU10 Speakers11 Cellular PhoneLesson 2 – Electrical 217Technical Training (G421305)
Cellular Phone Control Diagram NOTE: A= Hardwired P= MOST Mobile handset1 Adaptor cradle2 Speakers3 Audio amplifier4 Base plate adaptor5 IHU6 Transceiver Module (TM)7 Cellular Phone Antenna8 Clock spring9 Steering wheel switches10 Microphone11 (G421305) Technical Training218 Lesson 2 – ElectricalCellular Phone