K 2500 Suburban 4WD V8-454 7.4L VIN N TBI (1995)
Lamps-On Warning Alarm Does Not Operate
Troubleshooting Hints
1. Check that GAUGES FUSE 4, ILLUM FUSE 14 and STOP/HAS FUSE 1 are not open. If fuse(s) is open, then LOCATE and REPAIR source of
overload and REPLACE fuse(s).
2. Check that 0200 is clean and tight.
3. Check Fasten Safety Belts Indicator for an open filament.
4. If all warning alarms are inoperative, then check for an open in BLK (150) wire between Convenience Center and 0200. If OK, REPLACE Audio
Alarm Module.
5. Check that Audio Alarm Module is securely mounted in Convenience Center.
6. Check that the LH Door Jamb Switch operates freely.
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Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove "GOOD" in a
continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be
checked by monitoring for a voltage drop with the system operational (under load).
^
Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (Refer "Troubleshooting
Procedures"). See: Diagrams/Diagnostic Aids If the Lamps - On Warning is inoperative, check to see that the Panel Dimmer Switch is not in
the fully dim position.