Instrument Cluster / Carrier: Testing and Inspection: Diagnosis and Testing

Initiate instrument cluster self-diagnostic by depressing the odometer/trip reset button while turning the ignition key to the 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 - GAUGE DISPLAY
2. CHEC 2 - WARNING LAMP DISPLAY
3. CHEC 3 - LIQUID CRYSTAL DISPLAY (LCD) -checks the odometer/trip meter
4. CHEC 4 - TRANSMISSION RANGE INDICATOR LCD DISPLAY (Liquid Crystal Display)

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

Chec 1-Gauge Display:

CHEC 1 - GAUGE DISPLAY
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 - WARNING LAMP DISPLAY
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-Liquid Crystal Display (LCD):

CHEC 3 - LIQUID CRYSTAL DISPLAY (LCD)
If any LCD segment does not light, replace Odometer/Transmission Range Indication.

Chec 4-Transmission Range Indicator LCD Display:

CHEC 4 - TRANSMISSION RANGE INDICATOR LCD DISPLAY
If any LCD segment does not light, replace Odometer/Transmission Range Indicator.