Ford ST1137-A, Manual

Page: 22 / 43

413-01-22 413-01-22 Instrument Cluster
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST I: THE SPEEDOMETER IS INOPERATIVE (Continued)
Test Step Result / Action to Take
I2 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.
PINPOINT TEST J: THE ODOMETER IS INOPERATIVE
Test Step Result / Action to Take
J1 CHECK THE ODOMETER DISPLAY
• Key in ON position.
Yes
• Is the odometer displaying all dashes? REFER to the Powertrain
Control/Emissions Diagnosis (PC/ED)
manual .
No
GO to J2 .
J2 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.
PINPOINT TEST K: THE SAFETY BELT INDICATOR IS INOPERATIVE (CHIME IS OPERATIVE)/DOES NOT
OPERATE CORRECTLY
Test Step Result / Action to Take
K1 CHECK IF THE GEM IS RECEIVING THE CORRECT IGNITION
SWITCH STATUS
CAUTION: Use the correct probe adapter(s) when
making measurements. Failure to use the correct probe
adapter(s) may damage the connector.
• Connect the scan tool.
• Key in ON position.
• Enter the following diagnostic mode on the scan tool: Generic
Electronic Module (GEM) PID.
Yes
• Monitor the GEM PIDs IGN KEY, IGN S, IGN R, and
GO to K2 .
IGN A, while inserting the ignition key and cycling the ignition
switch through all the positions.
No
• Did the PIDs agree with the ignition switch positions? REFER to Section 211-05.
K2 CHECK IF THE GEM IS RECEIVING THE CORRECT SAFETY
BELT SWITCH STATUS
• Monitor GEM PID D SBELT while buckling and unbuckling the
Yes
driver safety belt. GO to K3 .
• Did the PID display IN with the safety belt buckled and OUT
No
with the safety belt unbuckled?
REFER to Section 413-09.
K3 CHECK THE GEM FOR AN INTERNAL OPEN OR A SHORT
• Key in OFF position.
(Continued)
2003 Mustang, 8/2002