System Testing: Notes
WARNING:
If cover from rear of instrument cluster is removed, screw heads and connectors "N", "P" and "Q" will be exposed. See Figure. These screw heads and connectors are part of cold cathode tubes in the cluster. If power is supplied to cluster (ignition on and connectors attached), DO NOT
touch these connectors and screw heads because they are electrically charged with high AC voltage.
NOTE:
Unless specified otherwise, use a DVOM with a minimum input impedance of 10-megohms. For electrical component locations, see ELECTRICAL COMPONENT LOCATIONS .
Identify symptom and perform corrective action as necessary. See SYSTEM TESTS INDEX & TROUBLE SHOOTING GUIDE table.
SYSTEM TESTS INDEX & TROUBLE SHOOTING GUIDE
| Component | Symptom | Action Or Test No. |
|---|---|---|
| All Meters, Gauges & Lights | No Display At All | TEST 1: . |
| " | 4 Gauge Needles Do Not Illuminate | Replace Power Source Unit |
| " | One Gauge Needles Do Not Illuminate | Replace Gauge |
| " | Character Plate Does Not Illuminate | Replace Power Source Unit |
| " | Character Plate Illuminated On One Side | TEST 2: . |
| " | Twin Trip/ODO Meter Does Not Illuminate | TEST 3: . |
| " | Illumination Does Not Dim When Lights Are Turned On | TEST 4 . |
| " | Illumination Does Not Dim With Rheostat | TEST 5 . |
| " | Illumination Remains Dim | Replace Power Source Unit |
| " | Does Not Go Out When Starter Is Operated | TEST 6 . |
| Speedometer | Does Not Operate While Driving | TEST 7 . |
| " | Display Faulty | Replace Speedometer |
| Tachometer | Does Not Operate While Engine Is Running | TEST 8 . |
| " | Display Faulty | Replace Tachometer |
| Fuel Gauge | Does Not Operate Or Operation Is Abnormal | TEST 9 . |
| Fuel Level Warning | Does Not Operate | TEST 10 . |
| Engine Coolant Temp. Gauge | Does Not Operate Or Operation Is Abnormal | TEST 11 . |
| Twin Trip Meter | Display Does Not Reset When Reset Switch Pressed | TEST 12 . |
| " | Display Is Reset While Driving, Switch Not Pressed | TEST 12 . |
| " | Display Does Not Change When Mode Switch (A/B) Is Pressed | TEST 12 . |
| " | Display Does Not Alter During Driving | TEST 13 . |
| " | Abnormal Display | Replace Trip Meter |
| " | Display Is Reset When Ignition Is Turned OFF | TEST 14 . |
| Odometer | Odometer Does Not Operate While Driving | TEST 15 . |
| Engine Oil Level Warning | Warning Light Does Not Operate | TEST 16 . |
| " | Warning Light Is Always On | TEST 17 . |
| HEIGHT Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 18 . |
| PWR Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 19 . |
| CRUISE MAIN Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 20 . |
| OPEN DOOR Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 21 . |
| Shift Position Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 22 . |
| TRAC OFF Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 23 . |
| ABS Warning | Abnormal Operation Or Warning Does Not Illuminate | TEST 24 . |
| WASHER LEVEL Warning | Abnormal Operation Or Warning Does Not Illuminate | TEST 25 . |
| SLIP Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 26 . |
| SEAT BELT Warning | Abnormal Operation Or Warning Does Not Illuminate | TEST 27 . |
| MALFUNCTION Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 28 . |
| REAR LIGHTS Warning | Abnormal Operation Or Warning Does Not Illuminate | TEST 29 . |
| LOW OIL PRESS. Warning | Abnormal Operation Or Warning Does Not Illuminate | TEST 30 . |
| SRS Warning | Abnormal Operation Or Warning Does Not Illuminate | TEST 31 . |
| Side SRS Warning | Abnormal Operation Or Warning Does Not Illuminate | TEST 32 . |
| DISCHARGE Warning | Abnormal Operation Or Warning Does Not Illuminate | TEST 33 . |
| Hi-Beam Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 34 . |
| Turn Signal Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 35 . |
| Brake Pad Warning | Warning Light Always Illuminated | TEST 36 . |
| BRAKE Warning | Abnormal Operation Or Warning Does Not Illuminate | TEST 37 . |
| HEADLIGHT Indicator | Abnormal Operation Or Indicator Does Not Illuminate | TEST 38 . |