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Home >> Ford >> 2007 >> F 150 2WD V6-4.2L VIN 2 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Pinpoint Tests >> Test L: No Power to the Scan Tool
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Test L: No Power to the Scan Tool

PINPOINT TEST L: NO POWER TO THE SCAN TOOL


L1:






L2-L3:






Normal Operation
The scan tool connects to the data link connector (DLC) to communicate with the controller area network (CAN), universal asynchronous receiver-transmitter (UART)-based protocol (UBP) communications network and the international standards organization (ISO) 9141 communications networks.

Possible Causes
- Fuse
- Circuit 40 (LB/WH) open
- Circuit 57 (BK) open
- Circuit 567 (LB/YE) open
- Scan tool
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