Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2008 >> F 150 4WD V8-5.4L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Pinpoint Tests >> Test I: No High Speed Controller Area Network (HS-CAN) Communication, All Modules Are Not Responding
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

Test I: No High Speed Controller Area Network (HS-CAN) Communication, All Modules Are Not Responding

PINPOINT TEST I: NO HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

Normal Operation
The HS-CAN uses an unshielded twisted pair cable, circuits 1827 (WH/LG) and 1828 (PK/LG). The ABS module, the instrument cluster (IC) and PCM all communicate with the scan tool using the HS-CAN.

This pinpoint is intended to diagnose the following:
- Wiring, terminals or connectors
- ABS module
- IC
- PCM


I1:






I1-I2:






I3-I4:






I5-I6:






I7-I8:






I8-I10:






I10-I11:






I12-I14:






I14-I16:






I16-I19:




pro multis · About Operation CHARM