Pinpoint Test Index
WARNING: This page is about a different car, the 1995 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Pinpoint tests can be performed for problem areas of instrument cluster. Use PINPOINT TEST INDEX table to determine proper test. Note instrument cluster wiring connector and pin identification before performing pinpoint tests. See Fig 1 .
CAUTION:
When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES
article in GENERAL INFORMATION section before disconnecting battery.
NOTE:
Following pinpoint tests are courtesy of Ford Motor Co.
PINPOINT TEST INDEX
| Symptom | Pinpoint Test | |
|---|---|---|
| Cluster Control Assembly Diagnosis | ||
| Display Not Lit | A | |
| Display Backlit But Blank | A | |
| Display Lit But Too Dim | A | |
| Display Scrambled, Segments Half Lit, Segments Blinking Or Missing, Incorrect Display | B | |
| Display Stuck With All Segments On | B | |
| Display Does Not Respond To Buttons, No Beep When Buttons Pressed, No Driver Alert Sounds | C | |
| Fuel Gauge Diagnosis CO Displayed, Gauge Blanks Out Fuel Tank Symbol, Lights 2 Top & 2 Bottom Bars Of Fuel Gauge | D | |
| CS Displayed, Gauge Blanks Out Fuel Tank Symbol, Lights 2 Top & 2 Bottom Bars Of Fuel Gauge | E | |
| Fuel Gauge Inaccurate | F | |
| Temperature Gauge Diagnosis | ||
| Temperature Gauge Displays 2 Top & 2 Bottom Bars | G | |
| Temperature Gauge Always Indicates Hot Or Cold | H | |
| No Warning Tone When Thermometer Symbol Blinks | J | |
| Speedometer Diagnosis | ||
| Speedometer Always Indicates Zero | K | |
| Speedometer Always Indicates Too High Or Too Low | L | |
| Speed Indication Varies Erratically | M | |
| Speed Control Indicator Always On | N | |
| Speed Control Indicator Never On | P | |
| Odometer Diagnosis | ||
| "S" Appears In Display | Q | |
| Vehicle Mileage Too High Or Too Low | R | |
| Mileage Does Not Accumulate | S | |
| Message Center Control Assembly Diagnosis | ||
| Instantaneous Fuel Economy Always Indicates Zero Miles/Gal. Or 99L/100 KM | T | |
| Distance To Empty Stays At Zero | U | |
| Warning Indicators Diagnosis | ||
| Door Ajar Always/Never Comes On | V | |
| Trunk Ajar Always/Never Comes On | W | |
| Charging System Warning Is Always On | X | |
| Air Suspension Warning Is Always On | Y | |
| Windshield Washer Fluid Warning Is Always On | AA | |
| Low Oil Warning Always/Never On | GG | |
| Transmission Indicator Always/Never On | KK | |