Pinpoint Tests
Pinpoint tests can be performed for problem areas of instrument cluster. Use PINPOINT TEST SYMPTOM 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 before disconnecting battery.
PINPOINT TEST SYMPTOM INDEX
| Symptom | Pinpoint Test | |
|---|---|---|
| Electronic Cluster Diagnosis Display Not Lit, Too Dim, Or Blank | A | |
| Display Scrambled, Segments Stuck, Half Lit, Blinking Or Missing | B | |
| Display Does Not Respond To Buttons, No Beep When Buttons Pressed, No Driver Alert Sounds | C | |
| Fuel Gauge Diagnosis | ||
| CO Displayed, Lights 2 Top & 2 Bottom Bars Of Fuel Gauge | D | |
| CS Displayed, 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 | L | |
| Speedometer Always Indicates Too High Or Too Low | M | |
| Speed Indication Varies Erratically | N | |
| Speedometer Always Reads ERROR | Replace Electronic Cluster | |
| Odometer Diagnosis | ||
| "S" Appears In Display | P | |
| Vehicle Mileage Too High Or Too Low | Q | |
| Mileage Does Not Accumulate Or Is Erratic | R | |
| Tachometer Diagnosis Tachometer Indicates Zero, Too High, Too Low Or Erratic | S | |
| Message Center Control Assembly Diagnosis Average Fuel Economy Always Indicates Zero Miles/Gal. Or 99L/100 KM | T | |
| Trip Distance Does Not Accumulate | U | |
| Distance To Empty Stays At Zero Or Not Below 200 Miles (322 Km) | V | |
| Warning Indicators Diagnosis | ||
| Charging System Warning Is Always On | K | |
| Low Windshield WASHER FLUID Warning Is Never On | W | |
| Low Windshield WASHER FLUID Warning Is Always On | X | |
| CHECK ENGINE (MIL) Warning Is Always On | Y | |
| BRAKE Warning Always/Never Comes On | Z | |
| High Beam Warning Always/Never Comes On | AA | |
| Anti-Lock Warning Always/Never Comes On | AB | |
| Low Oil Level Light Always/Never Comes On | AC | |
| Air Bag Warning Always/Never Comes On | AD | |
| Seat Belt Warning Fails Prove-Out | AE | |
| Seat Belt Warning Never Comes On | AF | |
| Low Oil Pressure Warning Always/Never On | AG | |