Instrument Cluster / Carrier: Testing and Inspection

In order to diagnose the instrument cluster function, a DRB III scan tool and the proper Body Diagnostic Procedures are required.

As a quick diagnosis, the cluster will perform a function check immediately after the ignition is switched to the RUN/START position. The electronic display, odometer and transmission range indicator and all warning lamps except:
- Cruise
- Fog lamps
- High beam
- Low fuel
- Turn signal will illuminate for a brief period.

If the cluster is not receiving CCD bus messages, the cluster will appear nonfunctional except for the continuously illuminated AIRBAG, ABS, and CHECK ENGINE indicators and NO BUS message displayed.

If the cluster is not receiving CCD bus messages, refer to the pre-diagnostic test described in proper Body Diagnostic Procedures or refer to the Instrument Cluster Self-Diagnostic Test below.

INSTRUMENT CLUSTER SELF-DIAGNOSTICS
Initiate instrument cluster self-diagnostic by depressing the odometer/trip reset button while turning the ignition key to the OFF/RUN/START position. This will cycle an electronic display segment check and illumination in sequence of all CCD bus activated cluster warning indicators. There are four Check (CHEC) functions:
1. CHEC 1, checks the gauges.
2. CHEC 2, checks the warning lamps.
3. CHEC 3, checks the odometer/trip meter.
4. CHEC 4, Transmission Range Indicator for the automatic transmission or the autostick transmission.

If the diagnostic procedure determines that a replacement of an instrument cluster component is required, refer to the proper component removal procedure.

CHEC 1 Gauge Display:

CHEC 1
1. If all gauges fail to move, replace Cluster Printed Circuit (PC) Board.
2. If any gauge fails to move, replace the gauge assembly.
3. If any gauge(s) is not in the proper position, replace Cluster Printed Circuit Board.

CHEC 2 Warning Lamp Display:

CHEC 2
1. If any lamp does not light, check lamp.
2. If lamp is not OK, replace lamp.
3. If lamp is OK, replace Cluster Printed Circuit Board.

CHEC 3 Vacuum Florescent (VF) Display:

CHEC 3
If any V/F segment does not light, replace Odometer/Transmission Range Indication.

CHEC 4 Transmission Range (VF) Display - Auotmatic Transmission:

Transmission Range (VF) Display - Autostick:

CHEC 4 - AUTOMATIC TRANSMISSION
If any V/F segment does not light, replace Odometer/Transmission Range Indication.

CHEC 4 - AUTOMATIC TRANSMISSION
If any V/F segment does not light, replace Odometer/Transmission Range Indication.