Navistar N9 - Service Diagnosis; Prerequisites for Effective Diagnosis; Technical Service Literature required for Effective Diagnosis

2DIAGNOSTICMANUAL
ServiceDiagnosis
Servicediagnosisisaninvestigativeprocedurethatmustbefollowedtondandcorrectanengineapplication
problemoranengineproblem.
Iftheproblemisengineapplication,seespecicvehiclemanualsforfurtherdiagnosticinformation.
Iftheproblemistheengine,seespecicEngineDiagnosticManualforfurtherdiagnosticinformation.
PrerequisitesforEffectiveDiagnosis
•Availabilityofgaugesanddiagnostictestequipment
•Availabilityofcurrentinformationforengineapplicationandenginesystems
•Knowledgeoftheprinciplesofoperationforengineapplicationandenginesystems
•Knowledgetounderstandanddoproceduresindiagnosticandservicepublications
TechnicalServiceLiteraturerequiredforEffectiveDiagnosis
•EngineServiceManual
•EngineDiagnosticManual
•EngineandAftertreatmentWiringSchematicForm
•ServiceBulletins