Live Covid-19
United States 89,360,080
Cases: 89,360,080
Deaths: 1,042,678
Recovered: 84,916,391
Active: 3,401,011
India 43,471,282
Cases: 43,471,282
Deaths: 525,139
Recovered: 42,836,906
Active: 109,237
Brazil 32,358,451
Cases: 32,358,451
Deaths: 671,466
Recovered: 30,846,850
Active: 840,135
France 31,083,859
Cases: 31,083,859
Deaths: 149,533
Recovered: 29,620,989
Active: 1,313,337
Germany 28,293,960
Cases: 28,293,960
Deaths: 141,189
Recovered: 26,702,200
Active: 1,450,571
United Kingdom 22,720,345
Cases: 22,720,345
Deaths: 180,330
Recovered: 22,145,429
Active: 394,586
Italy 18,523,111
Cases: 18,523,111
Deaths: 168,353
Recovered: 17,469,969
Active: 884,789
Russia 18,433,394
Cases: 18,433,394
Deaths: 381,165
Recovered: 17,861,605
Active: 190,624
South Korea 18,368,857
Cases: 18,368,857
Deaths: 24,555
Recovered: 18,204,741
Active: 139,561
Turkey 15,123,331
Cases: 15,123,331
Deaths: 99,032
Recovered: 15,005,249
Active: 19,050
Spain 12,734,038
Cases: 12,734,038
Deaths: 107,906
Recovered: 12,218,358
Active: 407,774
Vietnam 10,746,470
Cases: 10,746,470
Deaths: 43,087
Recovered: 9,681,318
Active: 1,022,065
Argentina 9,367,172
Cases: 9,367,172
Deaths: 129,070
Recovered: 9,163,334
Active: 74,768
Japan 9,329,520
Cases: 9,329,520
Deaths: 31,281
Recovered: 9,135,363
Active: 162,876
Netherlands 8,184,179
Cases: 8,184,179
Deaths: 22,378
Recovered: 8,063,483
Active: 98,318
Australia 8,162,153
Cases: 8,162,153
Deaths: 9,930
Recovered: 7,905,095
Active: 247,128
Iran 7,238,126
Cases: 7,238,126
Deaths: 141,389
Recovered: 7,062,657
Active: 34,080
Colombia 6,175,181
Cases: 6,175,181
Deaths: 140,070
Recovered: 5,984,546
Active: 50,565
Indonesia 6,090,509
Cases: 6,090,509
Deaths: 156,740
Recovered: 5,916,854
Active: 16,915
Mexico 6,034,602
Cases: 6,034,602
Deaths: 325,716
Recovered: 5,192,957
Active: 515,929
Poland 6,015,634
Cases: 6,015,634
Deaths: 116,429
Recovered: 5,335,673
Active: 563,532
Portugal 5,171,236
Cases: 5,171,236
Deaths: 24,149
Recovered: 4,745,321
Active: 401,766
Ukraine 5,017,038
Cases: 5,017,038
Deaths: 108,638
Recovered: 4,906,519
Active: 1,881
North Korea 4,744,430
Cases: 4,744,430
Deaths: 73
Recovered: 4,736,220
Active: 8,137
Malaysia 4,566,055
Cases: 4,566,055
Deaths: 35,765
Recovered: 4,500,856
Active: 29,434
Thailand 4,525,269
Cases: 4,525,269
Deaths: 30,667
Recovered: 4,470,490
Active: 24,112
Austria 4,438,883
Cases: 4,438,883
Deaths: 18,792
Recovered: 4,314,940
Active: 105,151
Israel 4,344,800
Cases: 4,344,800
Deaths: 10,958
Recovered: 4,259,884
Active: 73,958
Belgium 4,225,222
Cases: 4,225,222
Deaths: 31,903
Recovered: 4,122,858
Active: 70,461
South Africa 3,993,843
Cases: 3,993,843
Deaths: 101,793
Recovered: 3,880,462
Active: 11,588

Effect of On-Board Diagnostic System on Fault Detection in Automobile on Trainees’ Achievement and Retention in Idaw River Layout Area, Enugu South L.G.A

Effect of On-Board Diagnostic System on Fault Detection in Automobile on Trainees’ Achievement and Retention in Idaw River Layout Area, Enugu South L.G.A

Effect of On-Board Diagnostic System on Fault Detection in Automobile on Trainees’ Achievement and Retention in Idaw River Layout Area, Enugu South L.G.A

Ezeora, Boniface Ugochukwu Ph.D.1; & Ehimen, Theophilus Ehijele Ph.D.2

1Department of Technology and Vocational Education (TVE)
Faculty of Education, Enugu State University of Science and Technology (ESUT)
2Department of Vocational and Technology Education
Niger Delta University Bayelsa State


Technology has made significant impact in the Automobile industry. The digital era made tremendous in-road into the Automobile industry. Most automobiles manufactured according to the specifications of the Society of Automobile Engineers (SAE), from the year 2000 referred to as millennium vehicles possess some unique features. Such features include, components hitherto merely mechanical are now electro-mechanical, mechatronics and digital sensors with electrical/electronic linkages. The digital device has the ability for the vehicle system to record operating conditions. They are fitted with standardized codes that engender diagnostic capabilities of the device. The codes and operating conditions of the vehicle could be read from an appropriate scan tool. This technological development enhances fault detection in millennium vehicles. This study therefore sought to determine the compliance status of local motor mechanics who employ traditional diagnosing method to those who use the On-Board Diagnostic System (OBDS). The study was a quasi-experimental research design. A research question and a hypothesis guided the study. The instrument for data collection was a 20-item achievement test (OBDSAT). An intact class of seven students offering Automobile Technology from Department of Technology and Vocational Education, ESUT, was used as experimental group while a cluster of motor mechanics with bias in Japanese Toyota cars brand at Emeka Ebila area of Idaw River layout, Enugu were used as control group. The instrument used was validated by three experts. The reliability coefficient using Kuder Richardson (K-R 20) coefficient formula yielded 0.78 while internal stability using Pearson Product Moment coefficient formula yielded 0.68. The research question and hypothesis analysis showed that the traditional/conventional fault detection methods could not achieve as high as those exposed to the (OBDS). It is therefore recommended by the researcher that government should set up an agency of government to re-engineer the analog motor mechanics to embrace the OBDS. This process would enhance their competencies and the economy of the state. Alternatively, since the motor mechanics are already organized in clusters, their leaders could be trained on the OBDS skills so that they in turn would train their members. The ability of this large array of motor mechanics to be OBDS compliant would save the operators of millennium vehicles the agony of exposing their cars to trial-and-error cartels. Finally, a five-year moratorium should be allowed for the local mechanics to adopt the OBDS skills and acquire the equipment. At the expiration of the five years, the government agency would issue OBDS compliant certificate whose inscription should be boldly erected at the entrance of the motor mechanic workshops of all those certified compliant.

Keywords: Fault Detection; Digital Sensors; On-Board Diagnostic System (OBDS); Automobile Industry


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Accepted December 17th, 2021
Published December 31st, 2021