The Lab Scope Trace of an ISO-K Bus System Shows

question 11

Multiple Choice

The lab scope trace of an ISO-K bus system shows the voltage going to −0.5 volts. This would indicate:

• A) The scan tool bias voltage.
• B) The module attempting to transmit data to the scan tool.
• C) The scan tool attempting to request data from the module.
• D) Excessive electrical noise on the circuit.

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