Student Book-OBDII Diagnosis And Repair

Language: English
File Type: PDF
Page: 56

ENABLING OBJECTIVES
Upon completion of Lesson Three, you should be able to:
· Identify the Clean Air Act Amendment and the OBD II
provision.
· Follow state and federal regulations with regard to
compliance with exhaust emission laws.
· Apply logical and systematic approaches to test peripheral
automotive computer circuits (microprocessor, calibrator chips,
flash PROMS, and external devices).
· Obtain and interpret digital multimeter (DMM) readings. NATEF
Work Skill, A8/B6, P1.
· Using the electronic service information (ESI) system, identify
and locate relevant service information and interpret this
information toward diagnosis. NATEF Work Skill, A8/B7, P3.
· Locate and interpret vehicle and major component identification
numbers (VIN, vehicle certification labels, and calibration
decals). NATEF Work Skill, A8/B8, P1.
· Practice recommended precautions when handling static
sensitive devices. NATEF Work Skill, A8/B10, P2.
· Diagnose no starting, emissions/driveability problems resulting
from computerized engine controls faults with/without Diagnostic
Trouble Codes (DTC) stored on vehicles with distributorless
(electronic ignition) and distributor systems. NATEF Work Skill,
A8/B11, P1.
· Diagnose fuel-system-related problems, including hot or cold no
starting, hard starting, poor driveability, incorrect idle speed, poor
idle, flooding, hesitation, surging, engine misfire, power loss,
stalling, poor mileage, dieseling, and emissions problems on
vehicles with injection-type fuel systems; determine necessary
action. NATEF Work Skill, A8/D2, P1.
· Use an automotive Scan Tool to diagnose and interpret
Diagnostic Trouble Codes (DTC), serial data, and parameter
data information. ASE Task A8/E4.