1、Test ProcedureLaboratory GME14441Fuse Protection AnalysisNote: This specification may be applied only for current projects incl. Global Epsilon (37#).It is Superceded for all future projects and replaced by GMW15950.1 IntroductionNote: Nothinginthisstandardsupersedesapplicablelaws and regulations.No
2、te: In the event of a conflict between the Eng-lish and the domestic language, the English languageshall take precedence.1.1 Purpose. The purpose of thistestisto determinethat the fuse protection in every vehicle circuit is ade-quate.1.2 Foreword. Every circuit in a vehicle is protected,electrically
3、, by either a fuse or fused link. This test willverify that if a problem were to occur in a circuit thatthe only component to suffer damage would be thefuse. Also check that the damaged fuse is the correctone according to drawing.1.3 Applicability. For all fuses used in a vehicle.1.4 Definitions. No
4、t applicable.2 ReferencesNote: Only the latest approved standards are appli-cable unless otherwise specified.None.3 Resources3.1 Facilities. Not applicable.3.2 Equipment.3.2.1 Volt Ohm meter.3.2.2 Wire jumpers capable of shorting various com-ponent connectors.3.2.3 Several replacement fuses of vario
5、us ratings.3.3 Test Vehicle / Test Piece. A maximum contentvehicle.3.4 Test Time. One or two days are required.3.5 Test Required Information. Vehicle wiring dia-grams.3.6 Personnel / Skills. Not applicable.4 Procedure4.1 Preparation.4.1.1 Ensure that the battery is fully charged.4.1.2 At this test t
6、he car is not started.4.1.3 A power supply unit shall be connected in par-allel to the car battery.4.1.4 The power supply voltage shall be regulated to12.0 V.4.1.5 Insert a high current switch between the batteryminus pole and the battery minus wire.4.2 Conditions.4.2.1 Environmental Conditions. Unl
7、ess otherwisespecified the test shall be performed at (+23 5) C.4.2.2 Test Conditions. Deviations from the require-ments of the test procedures shall have been agreedupon. Such requirements shall be specified on com-ponent drawings, test certificates, reports etc.4.3 Instructions.4.3.1 Ensure that t
8、he vehicle battery has green dotshowing.4.3.2 Makea listofeveryfuse nameinthe fuseblock.4.3.3 Test each fused circuit listed above by dis-connecting, the component connector closest to theground side of cicuit.4.3.4 Using the wiring diagram to determine whichwire is positive, short the positive lead
9、 of the connec-tor to ground. (If switched ignition make sure key is“ON”)If components are connected directly tobattery plus (+30) ensure that the high current batteryswitch (see pargraph 4) is OFF bevore shorteningthe positive lead of the connector to ground.Check thoroughly the wiring and other co
10、mponentswithin the circuit and determine if any damage hasoccured. Copyright 2009 General Motors Corporation All Rights ReservedPublication Department: GME Specification CenterMarch 2009 - Issue No. 2 Page 1 of 2PRD045 - VPRE ST 1 10/03 GME14441 GM EUROPE ENGINEERING STANDARDS4.3.5 Replace fuse and
11、verify that circuit works cor-rectly. Repeat above procedure for every circuit invehicle.5 Data5.1 Calculations. Not applicable.5.2 Interpretation of Results. All vehicle systemsand componentsin circuitpathshallbe evaluated andnoted for damage and/or malfunction. In every testthe fuse must be the on
12、ly component to be damaged.5.3 Test Documentation. With reference to this TestProcedure, the results shall be added to a test report.6 SafetyThisstandardmay involve hazardous materials,oper-ations and equipment. This standard does not pro-pose toadressallthe safetyproblemsassociatedwithits use. It i
13、s the responsibility of the user of this stan-dard to establish appropriate safety and health prac-tices and determine the applicability of regulatory lim-itations prior to use.7 Coding SystemThisstandardshallbe referencedinotherdocuments,drawings, etc. as follows:Example: “Test to GME14441”8 Releas
14、e and Revisions8.1 Release. This standard was first approved andreleased on 14/NOV/2005.Content Owner: GME VS E/E Development & Valida-tionThis standard was first approved by Saab on14/NOV/2005.8.2 Revisions.Rev. Date Description (Org.)1 NOV 2005 First Release (ITDC)2 MAR 2009 was Issue 1, Date of Issue 11/05/ set to Superseded (GME Engi-neering) Copyright 2009 General Motors Corporation All Rights ReservedPage 2 of 2 Issue No. 2 - March 2009PRD045 - VPRE ST G 10/03
