Mountaineer AWD V6-4.0L VIN K Flex Fuel (2003)
d.
Inspect PCM power ground for good connection. Ground connection G104-Explorer/Mountaineer or G108-Aviator is located on the
bulkhead above PCM as illustrated in Explorer/Mountaineer Wiring Diagram 151-17 or Aviator Wiring Diagram 151-1:
^
If connection is loose, remove ground attaching bolt from bulkhead. Clean and inspect bolt and re-install. Torque to 95 lb-in. (10.8
N.m).
e.
Inspect connections in Battery Junction Box
(BJB):
^
Inspect for discoloration of PCM power relay terminals (indicating poor connection to relay terminals in BJB). See
Explorer/Mountaineer/Aviator Wiring Diagram, Section 11, for illustration of relay locations in BJB.
^
Wiggle wires leading to the BJB and check for loose connections.
^
Check seating on the starter, PCM and fuel pump relays.
NOTE
DO NOT REPLACE PCM IF NO CRANK CONDITION CANNOT BE REPRODUCED. PCM REPLACEMENT IS NOT AN EFFECTIVE
REPAIR FOR INTERMITTENT NO-CRANK.
f.
When all inspections are complete, clear DTC's, restore vehicle, and return to customer.
2.
CUSTOMER COMPLAINT DUPLICATED - NO-CRANK AND DASHES IN ODOMETER DISPLAY
NOTE
DASHES IN ODOMETER DISPLAY INDICATE NO COMMUNICATION BETWEEN THE PCM AND THE INSTRUMENT CLUSTER.
Assure good battery charge condition.
a.
Inspect PCM power ground for good connection. Ground connection G104-Explorer/Mountaineer or G108-Aviator is located on the
bulkhead above PCM as illustrated in Explorer/Mountaineer Wiring Diagram 151-17 or Aviator Wiring Diagram 151-1:
^
If connection is loose, remove ground attaching bolt from bulkhead. Clean and inspect bolt and reinstall. Torque to 95 lb-in. (10.8 N.m).
b.
Check PCM power connections in the Battery Junction Box (BJB). With key on, engine off, perform the following checks while monitoring
restoration of communication to the PCM either through odometer display or NGS tester:
^
Check seating of the PCM power relay in the Battery Junction Box (BJB). See Explorer/Mountaineer/Aviator Wiring Diagram, Section
11, for illustration of relay locations in BJB.
^
Wiggle wires leading to the BJB and check for loose connections.
^
Check PCM power relay by temporarily swapping with relay from unrelated circuit (fuel pump or other equivalent relay).
c.
Check PCM ground integrity at PCM connector:
^
Remove bottom PCM connector (C175A-Explorer/Mountaineer, C175B-Aviator) from PCM.
