Instrument Cluster Test 1A - Identifying Instrument Cluster Problems

NOTE: Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal identification and wiring diagrams, refer to CONNECTOR IDENTIFICATION and refer to WIRING DIAGRAMS . Perform, after each repair, TEST VER-1A - VERIFICATION PROCEDURE .

CAUTION: Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.

Turn ignition on. Using scan tool, select MIC CLUSTER. If scan tool displays BUS OPERATIONAL, go to next step. If scan tool displays any other message, see VEHICLE COMMUNICATIONS .
If scan tool displays NO RESPONSE or a false KEY MUST BE IN UNLOCK POSITION, see VEHICLE COMMUNICATIONS . If Vacuum Fluorescent (VF) display is blank or displays NO BUS, see VEHICLE COMMUNICATIONS . If scan tool display is other than described, go to next step.
Using scan tool, select MIC CLUSTER and then select READ DTCs. If scan tool displays RAM FAULT, replace Mechanical Instrument Cluster (MIC). If scan tool display is other than described, go to next step.
Using scan tool, select MIC CLUSTER and read cluster type. If cluster type matches vehicle equipment (US or Metric), go to next step. If cluster type does not match vehicle, replace MIC.
Using scan tool, select BODY COMPUTER systems test. If PCM status is INACTIVE ON THE BUS, see VEHICLE COMMUNICATIONS . If scan tool display is other than described, 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 Do Not Operate

Odometer Does Not Operate

Replace Odometer

One Gauge Not Operating Properly

Fuel Gauge

Speedometer

Tachometer

Temperature Gauge

Identifying Warning

Light Problems

Cluster Illumination

Gauges Not Going To Zero

When Key Is Turned Off

Trip Reset Button

⁽¹⁾

⁽¹⁾	Using scan tool, read status of trip reset button switch (open or closed), and depress trip reset button. If status of tripre set button does not change, replace Mechanic Instrument Cluster (MIC).