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 G: The Restraints Control Module (RCM) Does Not Respond 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
If it fails: lemon-manuals.org.ua

Or, hide this message: temporarily or permanently

Test G: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool

PINPOINT TEST G: THE RESTRAINTS CONTROL MODULE (RCM) DOES NOT RESPOND TO THE SCAN TOOL

Normal Operation
The RCM communicates with the scan tool through the International Standards Organization (ISO) 9141 communication network. Circuit 70 (LB/WH) provides the network connection to the RCM. The RCM shares the ISO network with the parking aid module (PAM) (if equipped). Voltage for the RCM is provided by circuit 937 (RD/WH). Circuit 1203 (BK/LB) provides ground.

This pinpoint is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- RCM


G1-G2:






G2-G4:




pro multis · About Operation CHARM