SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Diagnose and repair climate control systems 
SAQA US ID UNIT STANDARD TITLE
12235  Diagnose and repair climate control systems 
ORIGINATOR
SGB Manufacturing and Assembly Processes 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Manufacturing and Assembly 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 5  Level TBA: Pre-2009 was L5  10 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2005-07-19  2008-07-19  SAQA 0160/05 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2009-07-19   2012-07-19  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard is replaced by: 
US ID Unit Standard Title Pre-2009 NQF Level NQF Level Credits Replacement Status
376620  Diagnose and repair climate control systems  Level 5  Level TBA: Pre-2009 was L5  10   

PURPOSE OF THE UNIT STANDARD 
The skills, values and knowledge reflected in this unit standard are required by people in the field of autotronics.

The learning outcomes in this unit standard also contribute to the exit level outcomes required for the autotronics NQF level 5 qualification.

Qualifying learners are able to diagnose and repair climate control systems on an automobile. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
This unit standard is designed as part of a progression.

The credits allocated to this unit standard assume that the learner is competent on the relevant unit standards at the lower level. 

UNIT STANDARD RANGE 
The scope and level of this unit standard is determined by the ranges as indicated under specific outcomes.

The learner should be able to work autonomously. 

Specific Outcomes and Assessment Criteria: 

SPECIFIC OUTCOME 1 
Discuss and explain the basic operation of a vehicle climate control system 
OUTCOME RANGE 
Climate control systems include system overview, control and operation, air distribution/re-circulation, air distribution (driver/passenger), heating (driver /passenger), radiator fan control. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Results achieved
1. Climate control system circuits, diagrams and related components functions and operation are understood
2. Vehicle climate control system operating to manufacturer's specifications
3. Serviced component are replace/adjusted and meet specifications
4. All defective components are marked, removed and reported
5. Relevant documentation is completed

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturer's specifications are followed and adhered to
7. Problems are located and rectified

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Climate control systems
2. Input/output sensors
3. Control feed back loop
4. Selection and use of components
5. Diagnosis and testing of climate control systems
6. Relevant safety practices and procedures
7. Manufacturer's specification manuals 

SPECIFIC OUTCOME 2 
Discuss and explain the function of climate control related input and output devices 
OUTCOME RANGE 
Input devices include ambient temperature sensor, in-car temperature sensor, sun load sensor, coolant temperature, road speed sensor, wind pressure sensors, intake duct air sensor, kick down switch.

Output devices include compressor, radiator fan, interior blower resistor control, heater /air flap motors, climatronic relay, radiator thermo switch. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Results achieved
1. Climate control system circuits, diagrams and related components functions and operation are understood
2. Vehicle climate control system operating to manufacturer's specifications
3. Serviced component are replace/adjusted and meet specifications
4. All defective components are marked, removed and reported
5. Relevant documentation is completed

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturer's specifications are followed and adhered to
7. Problems are located and rectified

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Climate control systems
2. Input/output sensors
3. Control feed back loop
4. Selection and use of components
5. Diagnosis and testing of climate control systems
6. Relevant safety practices and procedures
7. Manufacturer's specification manuals 

SPECIFIC OUTCOME 3 
Identify and select engine management system components 
OUTCOME RANGE 
Test equipment include digital code checker, multi meter, test lamps oscilloscope, specialised diagnostic company specific equipment.

Diagnosing includes analysing/interpretation of diagnosing codes on the ECU. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Results achieved
1. Climate control system circuits, diagrams and related components functions and operation are understood
2. Vehicle climate control system operating to manufacturer's specifications
3. Serviced component are replace/adjusted and meet specifications
4. All defective components are marked, removed and reported
5. Relevant documentation is completed

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturer's specifications are followed and adhered to
7. Problems are located and rectified

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Climate control systems
2. Input/output sensors
3. Control feed back loop
4. Selection and use of components
5. Diagnosis and testing of climate control systems
6. Relevant safety practices and procedures
7. Manufacturer's specification manuals 

SPECIFIC OUTCOME 4 
Apply the relevant system safety and servicing precautions when working with climate control systems 
OUTCOME RANGE 
Servicing precautions as specified in the manufacturer's servicing manual. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Results achieved
1. Climate control system circuits, diagrams and related components functions and operation are understood
2. Vehicle climate control system operating to manufacturer's specifications
3. Serviced component are replace/adjusted and meet specifications
4. All defective components are marked, removed and reported
5. Relevant documentation is completed

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturer's specifications are followed and adhered to
7. Problems are located and rectified

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Climate control systems
2. Input/output sensors
3. Control feed back loop
4. Selection and use of components
5. Diagnosis and testing of climate control systems
6. Relevant safety practices and procedures
7. Manufacturer's specification manuals 

SPECIFIC OUTCOME 5 
Discuss and report incidents and problems related to climate control systems 
OUTCOME NOTES 
Discuss and report incidents and problems related to climate control systems and complete fault finding reports and requisitions. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Results achieved
1. Climate control system circuits, diagrams and related components functions and operation are understood
2. Vehicle climate control system operating to manufacturer's specifications
3. Serviced component are replace/adjusted and meet specifications
4. All defective components are marked, removed and reported
5. Relevant documentation is completed

Indicators
1. Appropriate components are chosen
2. Appropriate voltage source is chosen when servicing
3. Test equipment is selected and used correctly
4. Safe working practices are adhered to while carrying out activities
5. Appropriate fault finding and diagnostic procedures are used
6. Manufacturer's specifications are followed and adhered to
7. Problems are located and rectified

Understanding confirmed
Respond to "what if" and "why" questions covering
1. Climate control systems
2. Input/output sensors
3. Control feed back loop
4. Selection and use of components
5. Diagnosis and testing of climate control systems
6. Relevant safety practices and procedures
7. Manufacturer's specification manuals 


UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
1. Names and functions of:
  • Input sensors
  • Output sensors
  • Electronic control unit
  • Feed back loop control
  • Climate control systems and sub-systems
    2. Purpose of:
  • Electronic control unit
  • Input and output sensors
  • Testing of circuits and components
  • Applying electronic safety
  • Diagnosing fault conditions
    3. Attributes, descriptions, characteristics and properties:
  • Climate control systems
  • Electronic control units
  • Electronic test equipment
    4. Sensory cues:
  • Use of senses to detect faulty component in a circuit
  • Use of sight to read circuit diagrams and test equipment
    5. Causes and effects, implications of:
  • Causes of damage and injury
  • Implications of incorrect source voltages
  • Implications incorrect testing applications
  • Implications of incorrect component selection
  • Implications of not observing manufacturer's specifications
    6. Procedures and techniques:
  • Safety procedures
  • Fault finding procedures for components and climate control system
  • Diagnostic techniques for fault location (codes)
  • Repair procedures
    7. Regulations, legislation, agreements, policies, standards:
  • Applicable safety, health and environmental legislation
    8.Theory: rules, principles laws:
  • Control system
  • Air cooling sub-system
  • Heating sub-system
  • Electronic control unit
  • Communication medium
  • Other related topics
    9. Relationships, systems:
  • Relationship between climate control and that of cooling/heating systems
  • Relationship between climate control system and that of electronic control unit
  • Relationship between climate control system and that of other related sub-systems 
    		•


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems:
  • Recognise situations that require action and correct when necessary 
    		•

    UNIT STANDARD CCFO WORKING 
    Work effectively with others:
  • When diagnosing and repairing climate control systems 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage myself and my activities:
  • Apply the correct procedures for using, storing and looking after equipment, tools, test equipment, circuit diagrams and components 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively:
  • Use common names for components
  • Use common names for test equipment
  • Use common names for climate control systems
  • Fill in and use fault reports and requisition forms 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology:
  • Use and apply scientific principles to climate control systems 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate and understand of the world as a set of related systems:
  • Relate the use of climate control systems on an automobile to other climate control systems 
    		•

    UNIT STANDARD NOTES 
    This unit standard has been replaced by unit standard 376620, which is "Diagnose and repair climate control systems", Level 5, 10 credits. 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  22861   National Certificate: Autotronics  Level 5  Level TBA: Pre-2009 was L5  Passed the End Date -
    Status was "Reregistered"     		 2012-06-30  MERSETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.