Ford Mustang 2005 Workshop Manual page 16

2005 Mustang Workshop Manual
Is any voltage present?
B11 CHECK THE FUEL PUMP MODULE CIRCUITRY FOR AN OPEN
Ignition OFF.
Measure the resistance between the SJB C2280c-31, circuit 1357 (LB/YE), harness side; and
between the SJB C2280c-44, circuit 1356 (LG/VT), harness side.
Is the resistance less than 5 ohms?
B12 CHECK CIRCUIT 1356 (LG/VT) FOR AN OPEN
Measure the resistance between the SJB C2280c-44, circuit 1356 (LG/VT), harness side and the fuel
pump module C433-4, circuit 1356 (LG/VT), harness side.
Is the resistance less than 5 ohms?
B13 CHECK THE FUEL LEVEL SENSOR FOR AN OPEN
Ignition OFF.
Disconnect: Fuel Level Sensor C434 (RH Side).
Connect a fused jumper wire between the fuel level sensor C434-4, circuit 29 (YE/WH), harness side
and the fuel level sensor C434-2, circuit 1357 (LB/YE), harness side.
Ignition ON.
Wait one minute.
Enter the following diagnostic mode on the scan tool: Instrument Cluster Self-Test.
NOTE: Make sure to use only the instrument cluster DTCs for this step. Once the repairs are
complete, clear the SJB and instrument cluster DTCs.
NOTE: It is normal for DTC B2627 to be present during this step and should be ignored.
Clear the instrument cluster DTCs. Repeat the instrument cluster self-test.
Is DTC B2628 set?
B14 CHECK CIRCUIT 29 (YE/WH) FOR A SHORT TO VOLTAGE
Ignition OFF.
Disconnect: SJB C2280c.
Ignition ON.
Measure the voltage between the SJB C2280c-43, circuit 29 (YE/WH), harness side and ground.
Is any voltage present?
B15 CHECK CIRCUIT 29 (YE/WH) FOR A SHORT TO VOLTAGE WITH THE CIRCUIT ISOLATED
Measure the voltage between the SJB C2280c-43, circuit 29 (YE/WH), harness side and ground.
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DTCs. REPEAT the self-test.
No
REPAIR circuit 1357 (LB/YE) for a short to voltage. CLEAR the
DTCs. REPEAT the self-test.
Yes
REMOVE the jumper wire. GO to B22.
No
REMOVE the jumper wire. GO to B12.
Yes
REPAIR circuit 1357 (LB/YE) for an open. CLEAR the DTCs.
REPEAT the self-test.
No
REPAIR circuit 1356 (LG/VT) for an open. CLEAR the DTCs.
REPEAT the self-test.
Yes
INSTALL a new fuel level sensor. REFER to Section
CLEAR the DTCs. REPEAT the self-test.
No
LEAVE the jumper wire connected. GO to B14.
Yes
REMOVE the jumper wire. GO to B15.
No
LEAVE the jumper wire connected. GO to B16.
Yes
REPAIR circuit 29 (YE/WH) for a short to voltage. CLEAR the
DTCs. REPEAT the self-test.
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310-01.
11/14/2009