MB2 - Check Scan Tool Power Supply Connector and Wiring Cable

- Key Off.

- Inspect the connector and wiring cable between the Scan Tool and the vehicle battery power supply (or at the cigarette lighter) for obvious damage.

- Are the power supply connector and wiring cable OK?

YES -- There are no installation problems between the Scan Tool and the vehicle. GO to Output Test Mode. Output Test Mode

VERIFY that the proper key sequence was used for output(s) in the Output Test Mode.

NO -- SERVICE as necessary. RUN the Scan Tool "System Readiness" test to verify communication between the Scan Tool and PCM. On-Board System Readiness Test