Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2006 >> Explorer 4WD V8-4.6L VIN 8 >> Repair and Diagnosis >> Body and Frame >> Locks >> Power Locks >> Testing and Inspection >> Pinpoint Tests >> Test B: The Doors Do Not Lock/Unlock Using The Remote Keyless Entry (RKE) Keypad
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 B: The Doors Do Not Lock/Unlock Using The Remote Keyless Entry (RKE) Keypad

PINPOINT TEST B: THE DOORS DO NOT LOCK/UNLOCK USING THE REMOTE KEYLESS ENTRY (RKE) KEYPAD


B1-B4:






B4-B5:






Normal Operation
The smart junction box (SJB) supplies voltage to the RKE keypad through circuits CPK29 (GY/BU), CPK30 (VT/GN) and CPK31 (YE/GN). The SJB receives coded inputs from the RKE keypad through circuit RPK27 (BU) and operates the locks accordingly.

Possible Causes
- circuit CPK29 (GY/BU) open or short to ground
- circuit CPK30 (VT/GN) open or short to ground
- circuit CPK31 (YE/GN) open or short to ground
- circuit RPK27 (BU) open
- RKE keypad
- SJB
pro multis · About Operation CHARM