Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2001 >> F 150 2WD Pickup V6-4.2L VIN 2 >> Repair and Diagnosis >> Accessories and Optional Equipment >> General Module >> Service and Repair >> Central Security Module (CSM) Module
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

Central Security Module (CSM) Module

REMOVAL
1. Disconnect the battery ground cable.







2. Remove the central security module.
1 Disconnect C257.
2 Disconnect C256.
3 Remove the nuts.

NOTE: If C256 is disconnected first, an inadvertent IGNTAM alarm event (AL_EVT) will be stored and the alarm will sound when the battery is connected. The alarm must be disarmed by the remote unlock button or a key in the door lock cylinder to UNLOCK. To avoid this condition, disconnect (1) C257 before (2) C256 and reconnect (2) C256 before (1) C257.

INSTALLATION







1. To install, reverse the removal procedure.
^ Check for correct operation.

NOTE: To avoid inadvertent alarm activation, reconnect C256 first.
pro multis · About Operation CHARM