Ford ST1137-A, Руководство пользователя

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413-01-17 413-01-17 Instrument Cluster
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST B: INCORRECT FUEL GAUGE INDICATION (Continued)
Test Step Result / Action to Take
B6 CHECK THE FUEL PUMP ASSEMBLY FEED CIRCUIT 29
(YE/WH) (Continued)
• Measure the resistances between the instrument cluster C220b
pin 19, circuit 29 (YE/WH), harness side and the fuel pump
module assembly C463 pin 8, circuit 29 (YE/WH), harness side;
and between the instrument cluster C220b pin 19, circuit 29
(YE/WH), harness side and ground.
Yes
GO to B7 .
• Is the resistance less than 5 ohms between the instrument
No
cluster and the fuel pump module, and greater than 10,000 REPAIR the circuit. TEST the system for
ohms between the instrument cluster and ground? normal operation.
B7 CHECK FUEL PUMP MODULE GROUND CIRCUIT 327 (BK/OG)
AND CIRCUIT 397 (BK/WH)
• Measure the resistance between the instrument cluster C220b
pin 20, circuit 397 (BK/WH), harness side and the fuel pump
module assembly C463 pin 5, circuit 327 (BK/OG), harness side.
Yes
GO to B8 .
No
REPAIR the circuit(s) in question. TEST
• Is the resistance less than 5 ohms? the system for normal operation.
B8 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
• Disconnect all the instrument cluster connectors.
Yes
• Check for: INSTALL a new instrument cluster.
REFER to Instrument Cluster in this
• corrosion
section. TEST the system for normal
• pushed-out pins
operation.
• Connect all the instrument cluster connectors and make sure
they seat correctly.
No
• Operate the system and verify the concern is still present. The system is operating correctly at this
• Is the concern still present? time. The concern may have been caused
by a loose or corroded connector. CLEAR
the DTCs. REPEAT the self-test.
2003 Mustang, 8/2002