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
376620  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" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

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 replaces: 
US ID Unit Standard Title Pre-2009 NQF Level NQF Level Credits Replacement Status
12235  Diagnose and repair climate control systems  Level 5  Level TBA: Pre-2009 was L5  10   

PURPOSE OF THE UNIT STANDARD 
Learners accredited with this unit standard will be able to discuss the importance of climate control systems, the components and their functions, test and diagnose problems in climate control systems and replace and/or repair components of the climate control systems. The unit standard involves the application of both the theory and skills to achieve these autotronics-specific outcomes.

Learners credited with this unit standard will be able to:
  • Discuss the operation of climate control systems.
  • Discuss the components and equipment used in climate control systems.
  • Test and diagnose climate control systems.
  • Replace or repair components in the climate control systems. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
  • Communication at NQF Level 4.
  • Mathematical Literacy at NQF Level 4. 
    		•

    UNIT STANDARD RANGE 
    N/A 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Discuss the operation of vehicle climate control systems. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The climate control system is discussed in terms of its relationship to other systems of the automobile. 

    ASSESSMENT CRITERION 2 
    The function/purpose of the climate control systems is discussed to show how they contribute towards a safer and comfortable driving experience. 

    ASSESSMENT CRITERION 3 
    The different sub-systems of the climate control system are discussed and their inter-relationships are explored. 
    ASSESSMENT CRITERION RANGE 
    Sub-systems include ventilation, heating and air-conditioning systems.
     

    ASSESSMENT CRITERION 4 
    Aspects pertaining to safety, health, environmental and housekeeping are discussed to maintain safety of self and others. 

    ASSESSMENT CRITERION 5 
    The manufacturing specifications on the climate control system and its sub-systems are discussed to demonstrate the importance of these specifications in interpreting and performing any work on the systems. 

    ASSESSMENT CRITERION 6 
    Circuit diagrams of the sub-systems are analysed and used to explain how the sub-systems work and how they help to resolve electronic problems associated with the systems. 

    SPECIFIC OUTCOME 2 
    Discuss the climate control related input and output devices. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Input devices are discussed in terms of their different types and functions. 
    ASSESSMENT CRITERION RANGE 
    Input devices may include but are not limited to input sensors ambient temperature sensor, in-car temperature sensor, sun load sensor, coolant temperature sensor, road speed sensor, wind pressure sensors, intake duct air sensor and kick down switch.
     

    ASSESSMENT CRITERION 2 
    Output devices are discussed in terms of their different types and functions. 
    ASSESSMENT CRITERION RANGE 
    Output devices may include but are not limited to compressors, radiator fan, thermostatically controlled fan, interior blower resistor control, heater/airflap motors and climatronic relay.
     

    ASSESSMENT CRITERION 3 
    The components of the climate control system and its sub-systems are identified and discussed in terms of their functions. 
    ASSESSMENT CRITERION RANGE 
  • The ventilation system may comprise of the following components:
    > Blower motor, ducting system, vents, and control panel.
  • The heating system may comprise of the following components:
    > Heater core, heater control valves, heater hoses and control levers.
  • The air conditioning system may comprise of the following components:
    > Evaporator, condenser, compressor, receiver drier or accumulator, vacuum units and automatic temperature control.
     
    		•

    ASSESSMENT CRITERION 4 
    The equipment to be used when working with the components is listed and described in terms of their functions. 
    ASSESSMENT CRITERION RANGE 
    Equipment may includes scan/diagnostic tool, pressure gauge assembly, radiator pressure tester, multimeter, refrigerant recovery unit, vacuum gauge, electronic leak detector and thermometer.
     

    SPECIFIC OUTCOME 3 
    Test and diagnose climate control systems. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The principles of testing and diagnosing are discussed to provide a background for the actual task. 
    ASSESSMENT CRITERION RANGE 
    Principles include knowledge of other related components, starting diagnosis from the easy to the more difficult.
     

    ASSESSMENT CRITERION 2 
    Different types of diagnosis are conducted according to procedure. 
    ASSESSMENT CRITERION RANGE 
    Types may include the electronic method/procedure, the mechanical/visual method or procedure.
     

    ASSESSMENT CRITERION 3 
    A test and diagnosis of required components of the system are conducted as per manufacturer's requirements. 

    ASSESSMENT CRITERION 4 
    Testing equipment is selected and used according to manufacturer's instructions and specifications to diagnose faults. 

    ASSESSMENT CRITERION 5 
    A situation (context) is evaluated and a decision taken about what to test and diagnose. 

    SPECIFIC OUTCOME 4 
    Replace or repair components in the climate control system. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Information gathered is evaluated to decide whether to repair or replace a component. 

    ASSESSMENT CRITERION 2 
    The methodology/procedure to repair and/or replace a component is explained and applied according to manufacturer's requirements. 

    ASSESSMENT CRITERION 3 
    The appropriate component for the repair or replacement is identified and selected according to manufacturer's requirements and specifications. 

    ASSESSMENT CRITERION 4 
    The coding of a new ECU if required is performed in order to integrate it into the complete system. 

    ASSESSMENT CRITERION 5 
    Final inspection procedures and quality checks are performed on work completed and necessary adjustments are made to ensure adherence to industry standards. 

    ASSESSMENT CRITERION 6 
    Appropriate tools and equipment are used to perform repairs and replacements of components and to perform final tests. 

    ASSESSMENT CRITERION 7 
    Safety, housekeeping, health and environmental issues are described and applied when repairing and replacing components of the climate control system. 

    ASSESSMENT CRITERION 8 
    Implications of time wasting when repairing or replacing components are discussed in terms of impact on productivity and costs. 

    ASSESSMENT CRITERION 9 
    All relevant documentation during a repair or replace operation is prepared and completed according to company procedure. 
    ASSESSMENT CRITERION RANGE 
    Documentation includes fault finding reports and requisition forms as per company procedure.
     


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against this unit standard must be registered as an assessor with the relevant ETQA.
  • Any institution offering learning that will enable the achievement of this unit standard must be accredited as a provider with the relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant ETQA according to the ETQA policies and guidelines for assessment and moderation.
  • Moderation must include both internal and external moderation of assessments at exit points of the qualification, unless ETQA policies specify otherwise. Moderation should also encompass achievement of the competence described both in individual unit standards as well as the integrated competence described in the qualification. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
  • Names and functions of:
    > Input sensors.
    > Output sensors.
    > Electronic control unit.
    > Feed back loop control.
    > Climate control systems and sub-systems.
  • Purpose of:
    > Electronic control unit.
    > Input and output sensors.
    > Testing of circuits and components.
    > Applying electronic safety.
    > Diagnosing fault conditions.
  • Attributes, descriptions, characteristics and properties:
    > Climate control systems.
    > Electronic control units.
    > Electronic test equipment.
  • Sensory cues:
    > Use of senses to detect faulty component in a circuit.
    > Use of sight to read circuit diagrams and test equipment.
  • 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.
  • Procedures and techniques:
    > Safety procedures.
    > Fault finding procedures for components and climate control system.
    > Diagnostic techniques for fault location (codes).
    > Repair procedures.
  • Regulations, legislation, agreements, policies, standards:
    > Applicable safety, health and environmental legislation.
  • Theory: rules, principles laws:
    > Control system.
    > Air cooling sub-system.
    > Heating sub-system.
    > Electronic control unit.
    > Communication medium.
    > Other related topics.
  • 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. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems in which responses display that responsible decisions using critical and creative thinking have been made when:
  • Testing and diagnosing climate control systems. 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one's activities responsively and effectively when:
  • Discussing the operation of climate control systems and their components.
  • Testing and diagnosing climate control systems.
  • Replacing or repairing components of climate control systems.
  • Performing final inspection and quality checks. 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information to:
  • Test and diagnose climate control systems.
  • Replace or repair components of climate control systems.
  • Select appropriate components and equipment to perform replacement or repair operations. 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematical and/or language skills in the modes of oral and/or written presentation to:
  • Prepare reports on climate control systems. 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically, showing responsibility towards the environment and the health of others by:
  • Using the equipment and tools according to manufacturer's instructions. 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems by recognising that the problem-solving contexts do not exist in isolation when engaging with problems in climate control systems. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    This unit standard replaces unit standard 12235, "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  78943   National Certificate: Autotronics  Level 5  Level TBA: Pre-2009 was L5  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  MERSETA 
    Elective  78883   Further Education and Training Certificate: Autotronics  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  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.