Initial Inspection and Diagnostic Overview

NOTE: The HEC must be reconfigured upon replacement.

1. Verify the customer concern by operating the instrument cluster to duplicate the condition. Observe the indicators, warning displays, and gauges to determine if they are operating correctly with the ignition switch:
^ in RUN with the engine off.
^ in START before the ignition switch is released.
^ in RUN with the engine running.

2. Visually inspect for obvious signs of mechanical and electrical damage:

VISUAL INSPECTION CHART

Mechanical
^ Damaged fuel tank
^ Low engine coolant level
^ Loose or damaged accessory drive belt
^ Low engine oil level
^ Damaged parking brake position switch
^ Low brake fluid level

Electrical
^ Blown central junction box fuses:
- 5 (15 A)
- 7 (15 A)
- 11 (15 A)
- 13 (15 A)
- 21 (5 A)
- 23 (10 A)
- 24 (10 A)
- 29 (15 A)
- 30 (15 A)
- 32 (15 A)
- 34 (20 A)
- 35 (15 A)
- 37 (15 A)
- 38 (20 A)
- 39 (5 A)
^ Blown battery junction box Fuse 103 (50 A)
^ Damaged circuitry
^ Damaged switches or sensors

3. If the inspection reveals obvious concern(s), repair as required.
4. If the cause of the fault is not visually evident, proceed to the New Generation STAR Tester Diagnostics. New Generation Star Tester Diagnostics