Ford ST1137-A, Руководство пользователя

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413-01-43 413-01-43 Instrument Cluster
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST X: THE BRAKE WARNING INDICATOR IS ALWAYS ON (Continued)
Test Step Result / Action to Take
X7 CHECK THE BRAKE FLUID LEVEL SWITCH OPERATION
• Key in OFF position.
Yes
• Disconnect: Brake Fluid Level Switch C124. GO to X8 .
• Key in ON position.
No
• Monitor the brake warning indicator with the brake fluid level
VERIFY that the brake fluid level is full. If
switch disconnected.
the brake fluid level is full, install a new
• Does the brake warning indicator illuminate?
brake fluid reservoir. REFER to section
Section 206-06. TEST the system for
normal operation.
X8 CHECK CIRCUIT 128 (VT/YE) FOR A SHORT TO GROUND
BETWEEN THE GEM AND THE INSTRUMENT CLUSTER
• Key in OFF position.
• Disconnect: Instrument Cluster C220b.
• Measure the resistance between the GEM C201e pin 13, circuit
128 (VT/YE), harness side and ground.
Yes
GO to X10 .
No
REPAIR the circuit. TEST the system for
• Is resistance greater than 10,000 ohms? normal operation.
X9 CHECK FOR CORRECT GEM OPERATION
• Disconnect all the GEM connectors.
Yes
• Check for: INSTALL a new GEM. REFER to Section
419-10. TEST the system for normal
• corrosion
operation.
• pushed-out pins
• Connect all the GEM connectors and make sure they seat
No
correctly. The system is operating correctly at this
• Operate the system and verify the concern is still present. time. The concern may have been caused
• Is the concern still present? by a loose or corroded connector. CLEAR
the DTCs. REPEAT the self-test.
X10 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