Navigation System - Service Tips
TSB 06-23-1512/06/06
SERVICE TIPS FOR OPTIONAL NAVIGATION SYSTEM RADIO
FORD:
2003-2007 Expedition
2005-2007 Escape Hybrid
MERCURY:
2006-2007 Mariner Hybrid
This article supersedes TSB 06-5-15 to update the vehicle model years.
ISSUE
Some 2005-2007 Escape Hybrid, 2006-2007 Mariner Hybrid, and 2003-2007 Expedition vehicles equipped with optional Navigation systems may exhibit concerns of the Navigation display locking up, periodic rebooting concerns and a lack of accuracy of location information. Escape Hybrids may also experience loss of HEV power flow display and fuel economy screen displays.
ACTION
The following Service Procedure will assist with diagnosis and prevent the replacement of good components.
SERVICE PROCEDURE
1. Navigation radio software update procedures:
Under no circumstances should you use an update CD on an Escape Hybrid. On 2003-2004 model year Expeditions, do not update the Radio software unless the update disc is part of a complete set of Navigation Map Discs/DVD. Only those map discs should be used with the update included with the set. The map CD's and the update disc's are matched sets.
The table above shows compatible audio / navigational software version numbers for the Hybrid Escape and Expedition navigation radios. These software version numbers can be accessed through a menu on the navigational unit, refer to 2006 Expedition Workshop Manual, Section 419-07 for more details. This table may be helpful in determining whether the software on a particular navigational unit has been incorrectly updated in the past.
NOTE
DO NOT REPROGRAM SOFTWARE UNLESS A CUSTOMER HAS PURCHASED A MAP UPGRADE AND IT IS REQUIRED FOR AN 03/04 EXPEDITION.
2. Hybrid fuel economy / PowerFlow screen display issues:
These functions are unique to the HEV navigation radio. Following these tips will prevent the unnecessary replacement of good parts.
^ If the PowerFlow screen or Fuel Economy screens do not display, or have no information shown, the radio itself is not likely defective
^ The wiring to the gateway-SCP module (also referred to as the Audio Control Protocol Module) and the gateway-SCP module itself should be inspected. Specifically, Connectors C2294 (A and B) at the Gateway module, and Connector C229c at the navigation radio should be checked for issues such as pushed out pins, connector fully seated and pin fit
^ Continuity should be measured on circuits 833, 856, and 1068 between the connectors mentioned above
^ Powers and grounds to the gateway-SCP module should also be checked
^ The gateway module itself should also be inspected for damage before replacing the radio
^ If another HEV unit is available, swapping the gateway-SCP module can determine if the module is functioning correctly
3. Navigation disc care and handling:
For some concerns of the navigation display locking up, periodic rebooting, blank screen, no vehicle cursor display, vehicle cursor display with no map screen display, and inability to eject disc maybe caused by dirty or damaged CDs. In most cases dirty or scratched map CDs are the likely cause of the listed concerns and can be detected with the "CDROM status" diagnostic function test.
NOTE
INFORMATION DISCS ARE MOR[ SENSITIVE TO CLEANLINESS AND CONDITION THAN AUDIO DISCS. TO CLEAN DISCS, USE A SOFT, NONABRASIVE, LINT FREE CLOTH. DO NOT CLEAN THE DISC IN A CIRCULAR MOTION. CLEAN THE DISC FROM THE INNER HUB TO THE OUTSIDE TO MINIMIZE SCRATCHING. DO NOT USE A CLEANING SOLUTION ON DISCS. IF POSSIBLE, TRY KNOWN GOOD DISCS FROM ANOTHER VEHICLE IN SUSPECT UNIT.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
DEALER CODING
CONDITION
BASIC PART NO. CODE
18K931 42
Disclaimer