Roadmaster Estate Wagon V8-350 5.7L VIN P SFI (1996)
Audible Warning Device: Symptom Related Diagnostic Procedures
Troubleshooting Hints
PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check I/P Fuse Block Fuse #33. If open, check for a short to ground in CKT
2. Check I/P Fuse Block Fuse #13. If open, check for a short to ground in CKT 639.
3. Check I/P Fuse Block Fuse #12. If open, check for a short to ground in CKT 239.
4. Check that ground G200 is clean and tight.
5. If Speedometer or Cruise Control (if equipped) does not operate properly, refer to Vehicle Speed Sensor. See: Powertrain
Management/Computers and Control Systems/Sensors and Switches - Computers and Control Systems/Vehicle Speed Sensor
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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).
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Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (refer to General
Troubleshooting Procedures). See: Diagrams/Diagnostic Aids
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Refer to System Diagnosis.
