AD80.57-S-6000A | Drive authorization system shut-off valve (DSV) test of electrical system | 15.8.97 |
MODEL 638
Connection and use of test equipment | |||
Drive authorization system shutoff valve (DSV), diagnosis previous knowledge | |||
| Drive authorization system shutoff valve (DSV), arrangement of components | ||
The cables, connectors and connections are taken into consideration when testing using the HHT and may have to be separately checked for open circuit, good contact and correct connection as per the valid wiring diagram if a fault is indicated. | |||
| Summary of electric wiring diagrams | Model 638 | |
Only disconnect control module connectors with ignition switched off | |||
a | Battery voltage > 9.5 V | With engine running, charge monitoring lamp off, all consumers switched on | |
b | Complete DAS system (all connectors connected) | ||
c | Connect Hand-held Tester (HHT), read out fault memory | ||
d | DSV engine control module correctly identified with RFL | ||
Testing | |||
1 | DSV electrical system testing, CAN cables | ||
2 | DSV electrical system testing, control module | ||
3 | DSV electrical system testing, start without drive authorization signal | ||
4 | DSV electrical system testing, drive authorization signal |
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