Table of Contents
Task C-10 Diagnoses vehicle networking systems
Task Descriptor
Vehicle networking systems allow modules to communicate with each other by sharing input and output information. They also provide vehicle control by monitoring inputs and outputs to modules in order to make decisions based on pre-set parameters. Vehicle networking systems ensure the efficient operation and communication of component modules such as the engine, transmission, anti-theft system, climate control, body control, steering and brake control.
Automotive service technicians diagnose vehicle networking systems according to manufacturers’ service information.
C-10.01 - Reads diagnostic trouble codes (DTCs)
C-10.01 - Reads diagnostic trouble codes (DTCs)
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-10.01.01P |
verify concern |
concern is verified to determine diagnostic strategy |
| C-10.01.02P |
identify diagnostic systems |
diagnostic systems are identified to determine tools used, data link connection (DLC) location and system operation |
| C-10.01.03P |
select and use scan tools |
scan tools are selected and used to collect DTCs from modules |
| C-10.01.04P |
scan modules |
modules are scanned to find active DTCs and latest software |
| C-10.01.05P |
perform functional tests |
functional tests are performed according to manufacturers’ service information |
| C-10.01.06P |
refer to manufacturers’ diagnostic procedures |
manufacturers’ diagnostic procedures are referred to for DTCs definition |
Range of Variables
- modules include: powertrain control module (PCM), transmission control module (TCM), body control module (BCM), electronic brake control module (EBCM)
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards, bulletins, schematics
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-10.01.01L |
demonstrate knowledge of vehicle networking systems, their components and operation |
identify types of network protocols and describe their purpose |
| describe networking of modules and multiplexing |
| identify and interpret DTCs |
| identify parameters of inputs and outputs and describe their relationships |
| C-10.01.02L |
demonstrate knowledge of procedures used to read DTCs |
identify tools and equipment used to diagnose network and electronic circuitry and describe their characteristics, applications and procedures for use |
| describe procedures used to read DTCs |
Range of Variables
- network protocols include: ISO, controller area network (CAN), local interface network (LIN), speed
- networking of modules and multiplexing include: wiring designs, star and loop, wireless
- tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, scan tools
C-10.02 - Monitors data
C-10.02 - Monitors data
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-10.02.01P |
verify concern |
concern is verified to determine diagnostic strategy |
| C-10.02.02P |
select and use scan tools |
scan tools are selected and used to monitor data |
| C-10.02.03P |
select and organize relevant data |
relevant data is selected and organized to compare results to manufacturers’ service information |
| C-10.02.04P |
record data |
data is recorded to aid with diagnosis |
Range of Variables
- data includes: inputs, outputs, module and network status
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards, bulletins, schematics
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-10.02.01L |
demonstrate knowledge of vehicle networking systems, their components and operation |
describe networking of modules and multiplexing |
| identify and interpret data |
| identify parameters of inputs and outputs and describe their relationships |
| C-10.02.02L |
demonstrate knowledge of procedures used to monitor data |
identify tools and equipment used to monitor data and describe their characteristics, applications and procedures for use |
| describe procedures used to monitor data |
Range of Variables
- networking of modules and multiplexing include: wiring designs, star and loop, wireless
- data includes: inputs, outputs, module and network status
C-10.03 - Tests system circuitry and components
C-10.03 - Tests system circuitry and components
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-10.03.01P |
verify concern |
concern is verified to determine diagnostic strategy |
| C-10.03.02P |
select and use tools and equipment |
tools and equipment are selected and used to test system circuitry and components according to manufacturers’ service information |
| C-10.03.03P |
determine faulty system circuitry and components |
faulty system circuitry and components are determined according to test results |
Range of Variables
- tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, scan tools, LED circuit testers
- system circuitry and components include: wiring, modules, fuses, relays, grounds
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards, bulletins, schematics
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-10.03.01L |
demonstrate knowledge of vehicle networking systems, their components and operation |
identify types of network protocols and describe their purpose |
| describe networking of modules and multiplexing |
| identify and interpret DTCs |
| identify the parameters of inputs and outputs and describe their relationships |
| C-10.03.02L |
demonstrate knowledge of procedures used to diagnose vehicle networking system components |
identify tools and equipment used to diagnose network and electronic circuitry, and describe their characteristics, applications and procedures for use |
| describe procedures used to diagnose vehicle networking systems |
| C-10.03.03L |
demonstrate knowledge of circuits, their components and operation |
interpret diagnostic flowcharts and schematics |
| identify type of network wiring and describe their characteristics, composition and applications |
| C-10.03.04L |
demonstrate knowledge of procedures used to diagnose circuits and components |
describe procedures used to diagnose circuits and components |
Range of Variables
- network protocols include: ISO, CAN, LIN, speed
- networking of modules and multiplexing include: wiring designs, star and loop, wireless
- procedures used to diagnose include: verify concern, perform inspections, retrieve DTCs, access service information, conduct tests and measurements, isolate fault and identify root cause
- tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, scan tools, LED circuit testers
- network wiring includes: one-wire, two-wire, optical
C-10.04 - Interprets test results
C-10.04 - Interprets test results
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-10.04.01P |
verify concern |
concern is verified to determine diagnostic strategy |
| C-10.04.02P |
compare test values |
test values are compared to manufacturers’ service information |
| C-10.04.03P |
determine faulty circuitry and components |
faulty circuitry and components are determined by analyzing test results |
| C-10.04.04P |
refer to recorded data |
recorded data is referenced to assist in diagnosis |
Range of Variables
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards, bulletins, schematics
- data includes: inputs, outputs, module and network status
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-10.04.01L |
demonstrate knowledge of procedures used to interpret test results |
describe procedures used to interpret test results |
| identify and interpret data |
| identify parameters of inputs and outputs and describe their relationships |
Range of Variables
- data includes: inputs, outputs, module and network status
Task C-11 Repairs vehicle networking systems
Task Descriptor
Vehicle networking systems allow modules to communicate with each other by sharing input and output information. Vehicle networking systems ensure the efficient operation and communication of component modules such as the engine, transmission, anti-theft system, climate control, body control, steering and brake control.
Automotive service technicians repair vehicle networking systems according to manufacturers’ service information.
C-11.01 - Updates component software
C-11.01 - Updates component software
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| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-11.01.01P |
verify manufacturers’ service information |
latest software update is verified through manufacturers’ service information |
| C-11.01.02P |
select and use diagnostic tools and equipment |
diagnostic tools and equipment are selected and used according to task and manufacturers’ service information to update module software |
| C-11.01.03P |
program modules |
modules are programmed using updated manufacturers’ service information and software |
| C-11.01.04P |
configure modules |
modules are configured according to vehicle requirements and options |
| C-11.01.05P |
verify operation of updated modules |
operation of updated modules is verified by matching software code to manufacturers’ service information |
Range of Variables
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards, bulletins, schematics
- diagnostic tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, scan tools, hand tools, air tools, power tools, manufacturer-compliant programming tools, laptops, computers, voltage maintainer
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-11.01.01L |
demonstrate knowledge of procedures used to update component software |
identify diagnostic tools and equipment used to update component software and describe their characteristics, applications and procedures for use |
| identify and describe safe work practices pertaining to vehicle networking systems |
| describe procedures used to update component software |
| C-11.01.02L |
demonstrate knowledge of procedures used to reprogram software |
identify procedures and methods used to access/transfer and reprogram software |
Range of Variables
- diagnostic tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, scan tools, hand tools, air tools, power tools, manufacturer-compliant programming tools, laptops, computers, voltage maintainer
- methods used to access/transfer and reprogram software include: USB, Internet, scan tool
C-11.02 - Replaces components
C-11.02 - Replaces components
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| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-11.02.01P |
select and use tools and equipment |
tools and equipment are selected and used according to manufacturers’ service information |
| C-11.02.02P |
follow vehicle-specific cautionary procedures |
vehicle-specific cautionary procedures are followed to prevent personal injury and damage to components |
| C-11.02.03P |
identify and install compatible electronic components |
compatible electronic components are identified and installed according to vehicle specifications |
| C-11.02.04P |
transfer module-specific data |
module-specific data is transferred to component |
| C-11.02.05P |
configure modules |
modules are configured according to vehicle requirements and options |
Range of Variables
- tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, scan tools, hand tools, air tools, power tools, manufacturer-compliant programming tools, laptops, computers, voltage maintainer
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards, bulletins, schematics
- vehicle-specific cautionary procedures include: using anti-static straps, disabling restraint systems, following manufacturer’s service information
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-11.02.01L |
demonstrate knowledge of procedures used to replace vehicle networking system components |
identify tools and equipment used to replace vehicle networking system components and describe their characteristics, applications and procedures for use |
| identify and describe safe work practices pertaining to vehicle networking systems |
| describe procedures used to replace vehicle networking system components |
| C-11.02.02L |
demonstrate knowledge of procedures used to reprogram software |
identify methods used to access/transfer and reprogram software and describe their associated procedures |
Range of Variables
- tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, scan tools, hand tools, air tools, power tools, manufacturer-compliant programming tools, laptops, computers, voltage maintainer
- methods used to access/transfer and reprogram software include: USB, Internet, scan tool
C-11.03 - Repairs system circuitry and components
C-11.03 - Repairs system circuitry and components
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-11.03.01P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| C-11.03.02P |
follow vehicle-specific cautionary procedures |
vehicle-specific cautionary procedures are followed to prevent personal injury and damage to components |
Range of Variables
- tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, hand tools, wiring repair tools, scan tools, manufacturer-compliant programming tools
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards, bulletins, schematics
- vehicle-specific cautionary procedures include: using anti-static straps, disabling restraint systems, following manufacturers’ service information
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-11.03.01L |
demonstrate knowledge of procedures used to repair networking system circuitry and components |
identify tools and equipment used to repair networking system circuitry and components and describe their characteristics, applications and procedures for use |
| identify and describe safe work practices pertaining to vehicle networking systems |
| describe procedures used to repair networking system circuitry and components |
Range of Variables
- tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, hand tools, wiring repair tools, scan tools, manufacturer-compliant programming tools
C-11.04 - Verifies vehicle module communications system repair
C-11.04 - Verifies vehicle module communications system repair
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-11.04.01P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information to verify and confirm system repair |
| C-11.04.02P |
perform verification test |
verification test is performed to confirm system repair |
Range of Variables
- tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, scan tools, manufacturer-compliant programming tools
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards, bulletins, schematics
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-11.04.01L |
demonstrate knowledge of procedures used to verify module communications system repair |
identify and interpret DTCs |
| identify the parameters of inputs and outputs and describe their relationships |
| identify tools and equipment used to verify module communications system repair, and describe their characteristics, applications and procedures for use |
| identify and describe safe work practices pertaining to vehicle networking systems |
| describe procedures used to verify repair of vehicle module communication systems |
Range of Variables
- tools and equipment include: DMMs, oscilloscopes, probes, breakout boxes, scan tools, manufacturer-compliant programming tools