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 vehicle stability, traction and drive control (VSTDC) systems |
SAQA US ID | UNIT STANDARD TITLE | |||
376623 | Diagnose and repair vehicle stability, traction and drive control (VSTDC) 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 | 16 |
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 |
12232 | Diagnose and repair vehicle stability, traction and drive control (VSTDC) systems | Level 5 | Level TBA: Pre-2009 was L5 | 20 |
PURPOSE OF THE UNIT STANDARD |
Learners accredited with this unit standard will be able to discuss the importance of vehicle stability, traction and drive control systems, the components and their functions, test and diagnose problems in vehicle stability, traction and drive control systems and replace and/or repair components of the vehicle stability, traction and drive control systems. The unit standard involves the application of both the theory and skills to achieve these autotronics-specific outcomes.
Learners credited with this standard will be able to: |
LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING |
UNIT STANDARD RANGE |
N/A |
Specific Outcomes and Assessment Criteria: |
SPECIFIC OUTCOME 1 |
Discuss the operation of vehicle stability, traction and drive control system. |
ASSESSMENT CRITERIA |
ASSESSMENT CRITERION 1 |
The VSTDC system is discussed in terms of its relationship to the other systems of the automobile. |
ASSESSMENT CRITERION 2 |
The function/purpose of the VSTDC system is discussed to show how it assists the driver to control the automobile. |
ASSESSMENT CRITERION 3 |
The different sub-systems of the VSTDC system are discussed and their inter-relationships are explored. |
ASSESSMENT CRITERION RANGE |
Sub-systems include the anti-lock brake system (ABS), traction control system (TCS), electronic stability programme (ESP), electric transmission control (ETC). |
ASSESSMENT CRITERION 4 |
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. |
ASSESSMENT CRITERION 5 |
Aspects pertaining to safety, health, environmental and housekeeping are discussed to maintain safety of self and others. |
ASSESSMENT CRITERION 6 |
The manufacturing specifications on the vehicle stability, traction and drive control systems are discussed to demonstrate the importance of these specifications in interpreting and performing any work on the systems. |
SPECIFIC OUTCOME 2 |
Discuss the components of and the equipment used in the VSTDC system. |
ASSESSMENT CRITERIA |
ASSESSMENT CRITERION 1 |
The components of the VSTDC system and its sub-systems are identified and discussed in terms of their functions. |
ASSESSMENT CRITERION RANGE |
Components include wheel speed sensors, electronic control units (ECU), Motronic ECU, electronic control valve, YAW sensors, lateral acceleration sensors, steering wheel angle sensors, primary pressure sensors and electronic throttle control.
Hydraulic components include hydraulic pressure modulator with solenoid valves, hydraulic pressure modulator with integrated ECU, ABS hydraulic pressure modulator, hydraulic actuators, and hydraulic modulators. |
ASSESSMENT CRITERION 2 |
The links between the components (if any) are explored in terms of how they support the VSTDC system. |
ASSESSMENT CRITERION 3 |
The equipment to be used when working with the components is listed and described. |
SPECIFIC OUTCOME 3 |
Test and diagnose VSTDC 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 situation (context) is evaluated and a decision taken about what to test and diagnose. |
ASSESSMENT CRITERION 4 |
Testing equipment is selected and used according to manufacturer's instructions and specifications to diagnose faults. |
ASSESSMENT CRITERION 5 |
A test and diagnosis of required components of the system are conducted as per manufacturer's requirements. |
ASSESSMENT CRITERION 6 |
Guided fault finding procedures are described and applied as per manufacturer's requirements. |
SPECIFIC OUTCOME 4 |
Replace or repair components in the VSTDC system. |
ASSESSMENT CRITERIA |
ASSESS |