Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2009 >> F 150 4WD V8-5.4L Flex Fuel >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Pinpoint Tests >> Pinpoint Test X: No Power To The Scan Tool
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Pinpoint Test X: No Power To The Scan Tool




Communications Network

Pinpoint Test X: No Power To The Scan Tool

Refer to Wiring Diagrams Set 14, Module Communications Network for schematic and connector information. Diagrams By Number

Normal Operation

The scan tool is connected to the Data Link Connector (DLC) to communicate with the High Speed Controller Area Network (HS-CAN) and the Medium Speed Controller Area Network (MS-CAN) communications network. Voltage for the scan tool is provided by circuit SBP20 (GN/RD). Ground is provided by circuit GD133 (BK).

This pinpoint test is intended to diagnose the following:

- Fuse
- Wiring, terminals or connectors
- Scan tool

PINPOINT TEST X: NO POWER TO THE SCAN TOOL

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test. Inspection and Verification

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.

X1-X3:






pro multis · About Operation CHARM