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1 VEHICLE COMMUNICATION SYSTEM VERIFIED QUESTIONS AND ANSWERS LATEST UPDATES

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Institution 1 VEHICLE COMMUNICATION SYSTEM
Course 1 VEHICLE COMMUNICATION SYSTEM
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Pass your vehicle communication systems certification exam with this definitive study guide featuring authentic questions and verified answers, updated for the latest technology. Master every essential topic: CAN‑C and CAN‑B bus voltage measurements (CAN‑C+ ~3.2V, CAN‑C‑ ~1.8V, CAN‑B+ ~4.8V, CAN‑B‑ ~0.4V), LIN bus voltage (7.0V‑10.0V), terminating resistor values (60 ohms on star connector networks), Security Gateway (SGW) introduced in 2018 model year vehicles, locked SGW preventing actuator tests, system tests, and module flashing, Atlantis‑high architecture requiring Mopar Diagnostic Pod (MPD) and using splice block connectors on CAN‑BH, CAN‑FD vs. CAN‑C differences (flexible bit rates, larger bias voltage), single‑wire networks (LIN), diagnostic strategies (loss of comm test, wiggle test for intermittent faults), wiTECH 2.0 incompatibility with legacy architectures (use wiTECH 1.0 with enhanced DRB emulator), Automotive Ethernet normal speed (100 Mbps), unresponsive modules on topology (failed SGW, shorted diagnostic CAN circuits), troubleshooting DRB III Emulator concerns (wiTECH knowledge base first), and the truth about CAN‑B(+) shorts not always preventing bus communication. Perfect for automotive technicians, Stellantis/Chrysler/Jeep/Dodge/RAM/Fiat/Alfa Romeo diagnosticians, and ASE certification candidates—master module communication, bus fault patterns, and advanced network diagnostics.

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VEHICLE COMMUNICATION SYSTEM
VERIFIED QUESTIONS AND ANSWERS
LATEST UPDATES


what is the resistance of the terminating resistor on networks equipped with one
start connector? - CORRECT ANSWER ✔✔- 60 ohms


with the bus active and no faults present, what voltages should be measured on
CAN-C(+)? - CORRECT ANSWER ✔✔- approximately 3.2v


what Atlantis-high network uses splice block connectors? - CORRECT ANSWER
✔✔- CAN-BH


with the bus active and no faults present, what voltages should be measured on
CAN-B(-)? - CORRECT ANSWER ✔✔- approximately 0.4v


which resource should be used first for troubleshooting DRB III Emulator
concerns? - CORRECT ANSWER ✔✔- wiTECH knowledge base


with the bus active and no faults present, what voltages should be measured on
LIN? - CORRECT ANSWER ✔✔- 7.0v-10.0v


what electrical architecture requires the use of the mopar diagnostic pod (MPD) for
diagnostics? - CORRECT ANSWER ✔✔- Atlantis-high



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