Operation CHARM: Car repair manuals for everyone.
Home >> Lincoln >> 2006 >> Navigator 2WD V8-5.4L VIN 5 >> Repair and Diagnosis >> Accessories and Optional Equipment >> Navigation System >> Testing and Inspection >> Pinpoint Tests >> Test A: No Communication With The Navigation 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

Test A: No Communication With The Navigation Module

PINPOINT TEST A: NO COMMUNICATION WITH THE NAVIGATION MODULE


A1-A2:






A2 Continued:






Normal Operation
The navigation module receives battery voltage from the central junction box (CJB) through circuits 194 (PK), and 720 (RD/YE), and is grounded through circuit 694 (BK/LG). The navigation module communicates with the diagnostic tool and with other vehicle modules through the standard corporate protocol (SCP) network circuits.

Possible Causes
- fuse(s)
- circuit 194 (PK) open
- circuit 694 (BK/LG) open
- circuit 720 (RD/YE) open
- navigation module
pro multis · About Operation CHARM