GE IC3645SR4R333AS1 Installation And Operation Manual

DIAGNOSTIC STATUS CODESSX TRANSISTOR CONTROL Page 15April 1999Section 4.3 Recommended Lubrication of Pins andSockets Prior to InstallationBeginning in January of 1999, GE will implement theaddition of a lubricant to all connections using pins andsockets on EV100/EV200 and Gen II products. Anyconnection made by GE to the A, B, X, Y, or Z plugs willhave the lubricant NYE 760G added to prevent fretting ofthese connections during vehicle operation.Fretting occurs during microscopic movement atthe contact points of the connection. This movementexposes the base metal of the connector pin which, whenoxygen is present, allows oxidation to occur. Sufficientbuild up of the oxidation can cause intermittent contactand intermittent vehicle operation. This can occur at anysimilar type of connection, whether at the control or in anyassociated vehicle wiring, and the resultant intermittentcontact can provide the same fault indication as actualcomponent failure.The addition of the NYE 760G lubricant will preventthe oxidation process by eliminating the access of oxygento the contact point. GE recommends the addition of thislubricant to the 12 pin and 23 pin plugs of all new Gen IIcontrols at the time of their installation into a vehicleWhen servicing existing vehicles exhibitingsymptoms of intermittent mis-operation or shutdown by theGE control, GE recommends the addition of this lubricant toall 12 and 23 pin plugs, after proper cleaning of theconnectors, as a preventative measure to insure fretting isnot an issue before GE control replacement.Section 4.4 General Troubleshooting InstructionsTrouble-shooting the SX family of controls should be quickand easy when following the instructions outlined in thefollowing status code instruction sheets.If mis-operation of the vehicle occurs, a status code will bedisplayed on the Dash Display (for vehicles equipped with aDash Display) or made available by plugging a Handset intothe plug "Y" location, and then reading the status code.With the status code number, follow the proceduresoutlined in the status code instruction sheets to determinethe problem.Important Note: Due to the interaction of the logic cardwith all vehicle functions, almost any status code orcontrol fault could be caused by the logic card. After allother status code procedures have been followed and noproblem is found, the controller should then be replaced asthe last option to correct the problem.The same device designations have been maintained ondifferent controls but the wire numbers may vary. Refer tothe elementary and wiring diagrams for your specificcontrol. The wire numbers shown on the elementarydiagram will have identical numbers on the correspondingwiring diagrams for a specific vehicle, but these numbersmay be different from the numbers referenced in thispublication.WARNING: Before trouble-shooting, jack up the drivewheels, disconnect the battery and discharge thecapacitors. Reconnect the battery as needed for specificchecks. Capacitors should be discharged by connecting a200 ohm 2 watt resistor between the positive and negativeterminals on the control panel.Check resistance on R x 1000 scale from frame to powerand control terminals. A resistance of less than 20,000ohms can cause misleading symptoms. Resistance lessthan 1000 ohms should be corrected first.Before proceeding, visually check for loose wiring,mis-aligned linkage to the accelerator switch, signs ofoverheating of components, etc.Tools and test equipment required are: clip leads, volt-ohmmeter (20,000 ohms per volt) and basic hand tools.