Instrument Cluster Test 1A - Identifying Instrument Cluster System Problems
NOTE:
Perform SYMPTOM ID TEST 1A
before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION
and WIRING DIAGRAM and INSTRUMENT PANEL
article. Perform TEST VER-1A
after each repair.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting any module connector. Ensure all connectors are clean and tight.
- Using scan tool, select BODY SYSTEM, then MIC CLUSTER. If scan tool displays BUS OPERATIONAL, go to next step. If scan tool displays NO RESPONSE, go to TEST 6A under VEHICLE COMMUNICATIONS. If scan tool displays any other message, go to TEST 1A under VEHICLE COMMUNICATIONS.
- Using scan tool, read cluster type (US or Metric). If cluster type does not match application, replace instrument cluster circuit board. If cluster type matches application, go to next step.
- Identify problems(s) listed in INSTRUMENT CLUSTER DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s).
INSTRUMENT CLUSTER DIAGNOSTIC TEST DIRECTORY
| Problem | Perform | |
|---|---|---|
| All Gauges Not Operating Properly | INSTRUMENT CLUSTER TEST 2A | |
| One Gauge Not Operating Properly | ||
| Fuel Gauge | INSTRUMENT CLUSTER TEST 3A | |
| Speedometer/Odometer | INSTRUMENT CLUSTER TEST 4A | |
| Tachometer | INSTRUMENT CLUSTER TEST 5A | |
| Temperature Gauge | INSTRUMENT CLUSTER TEST 6A | |
| Oil Pressure Gauge | INSTRUMENT CLUSTER TEST 7A | |
| Voltmeter | INSTRUMENT CLUSTER TEST 8A | |
| All Warning Lights Not Operating Properly | INSTRUMENT CLUSTER TEST 9A | |
| One Warning Light Not Operating Properly | INSTRUMENT CLUSTER TEST 10A | |
| Scan Tool Message PWM TEST FAILED | INSTRUMENT CLUSTER TEST 11A | |