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Home >> Mercury Truck >> 2006 >> Mountaineer AWD V6-4.0L VIN E >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Technical Service Bulletins >> By Symptom >> Customer Interest >> Instruments - Fuel Gauge Drops to Empty/MIL ON/DTC's >> Service Procedure >> Procedure B

Procedure B

PROCEDURE B (2006 MY)

NOTE
WHEN PERFORMING STEPS 4A-0, FUEL GAUGE SLOSH STRATEGY REQUIRES SPECIFIC KEY-ON AND KEY-OFF CYCLE TIMES. THESE TIMES MUST BE OBSERVED OR THE DIAGNOSTIC RESULTS WILL NOT BE ACCURATE.

CHECKING FUEL GAUGE OPERATION:

1. Key in OFF position.

2. Remove Fuse F24 (10 amp) from the Smart Junction Box, wait 1 minute and reinstall fuse.

NOTE
STEP 2 IS DONE TO RESET THE CLUSTER FUEL GAUGE TIMERS. FAILURE TO COMPLETE THIS STEP MAY RESULT IN ERRONEOUS TEST RESULTS.

3. Disconnect: Fuel Pump Gauge Sender C433.





4. Connect one lead of the instrument gauge system tester to the Fuel Pump Gauge Sender C433-8, Circuit VMC11 (YE/VT), harness side and the other lead to the Fuel Pump Gauge Sender C433-5, Circuit RMC32 (GN/BU), harness side. (Figure 2)

a. With the key in the RUN position, move the shift lever from PARK to DRIVE, wait 10 seconds and then back to PARK.

b. Wait 30 seconds with the key in the RUN position and the shift lever in PARK.

c. Turn key to the OFF position.

d. Set the tester to 180 ohms.

e. Turn key to the RUN position, move the shift lever from PARK to DRIVE, wait 10 seconds and then move the shift lever back to PARK.

f. Wait 30 seconds with the key in the RUN position and the shift lever in PARK.

g. Turn key to OFF position and wait 30 seconds.

h. Set the tester to 10 ohms.

i. Turn key to RUN position, move the shift lever from PARK to DRIVE, wait 10 seconds and then move the shift lever back to PARK.

j. Wait 30 seconds with the key in the RUN Position and the shift lever in PARK.

NOTE
THE FUEL GAUGE SHOULD READ "E" (EMPTY MARK) OR BELOW WHEN CARRYING OUT THIS TEST STEP.

k. Turn key to OFF position and wait 30 seconds.

l. Set the tester to 180 ohms.

m. Turn key to ON position.

NOTE
THE FUEL GAUGE SHOULD READ "F" (FULL) OR ABOVE WHEN CARRYING OUT THIS TEST STEP.

n. Wait 1 minute for the gauge to respond.

o. Turn key to OFF position. After completing Steps 4A-0, if the fuel gauge operates correctly replace the fuel sender only (9A299). If not, refer to the Workshop Manual, Section 413-01 and perform normal diagnostics.
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