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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Engine Controls - Tests W/Codes - Body Control Computer) >> Self-Diagnostic Tests >> Test 30A - Electronic Instrument Cluster (EIC) Problems

Test 30A - Electronic Instrument Cluster (EIC) Problems

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, 1995 Dodge Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Always turn ignition off prior to disconnecting or connecting any module connector.
NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For appropriate wiring diagram, see WIRING DIAGRAMS  section at the end of this article. Perform TEST VER-1B after each repair.
  1. Using scan tool, select ELECTRONIC INST CLUSTER. If scan tool displays NO RESPONSE FROM EIC or cluster is completely blank, go to TEST 31A. If scan tool does not display NO RESPONSE FROM EIC and cluster is not completely blank, go to next step.
  2. Read Electronic Instrument Cluster (EIC) DTCs. If scan tool displays any DTCs, go to TEST 32A. If scan tool does not display any DTCs, go to next step.
  3. Read cluster ID status. If scan tool does not display CLUSTER ID EIC US, go to TEST 33A. If scan tool displays CLUSTER ID EIC US, go to next step.
  4. Using scan tool, select PCM MONITOR under SYSTEM TESTS. If scan tool displays NO RESPONSE, go to TEST 107A. If scan tool does not display NO RESPONSE, go to next step.
  5. Using scan tool, actuate EIC ALL SEQUENTIAL SEGMENTS test. If any segment fails to light, replace EIC. If all segments light, go to next step.
  6. Using scan tool, actuate EIC ALL SEGMENTS ON test. If any segment fails to light, replace EIC. If all segments light, go to next step.
  7. Electro/mechanical instrument cluster system diagnostics are separated into 5 categories. Verify customer complaint and identify problem area before performing appropriate test. See DIAGNOSING ELECTRO/MECHANICAL INSTRUMENT CLUSTER SYSTEM table below.
DIAGNOSING ELECTRO/MECHANICAL INSTRUMENT CLUSTER SYSTEM

Description Perform Test
Switches 34A
Gauges 35A
Speedometer Or Odometer 36A
Cluster Warning Lamps 37A
Cluster Illumination 38A
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