GE IC3645SR4U404N2 Armature transistor did not turn on, Look Ahead test for A2 volts less

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DIAGNOSTIC STATUS CODES

SX TRANSISTOR CONTROL

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	TRACTION	DESCRIPTION OF STATUS
	STATUS CODE
	-45	Armature transistor did not turn on
	-45	properly.
	MEMORY RECALL	CORRECTIVE ACTIONS
	YES	CORRECTIVE ACTIONS
	YES
		SYMPTOM
	Circuits valid	Line contactor opens and closes, then can only
	Circuits valid	be closed by opening and closing the key
	for	switch.
	Traction	POSSIBLE CAUSE
	Controller	Defective control.
		• Replace controller unit.

CAUSE OF STATUS INDICATION

This status code will be displayed when, during control operation, the armature transistor fails to turn on properly. This will result in a PMT condition.

TROUBLE-SHOOTING DIAGRAM

				BRAKE SW.
FU5	P2 KEY SWITCH P1			SEATSW.	STARTSW.	FOR.SW.	REV. SW.
FU7			SP	SEATSW.	STARTSW.	FOR.SW.	REV. SW.
	TO	P5
	TO		L
FU6	ACCESSORIES	P4
FU6	P3	P4
	PY7					P4
	PY12 P18		P17 P1 P2	P6	P3	P4	P5
	PY10		OSCILLATOR CARD		P7	P10 P9 P12 P8
	PY11		LEFT CONTROL
LINE FU1
							STEER
FU2							ANGLE
FU2					ACC POT		POT
					ACC POT

+	FU4								BDI INTERRUPT
+	FU4
	P
		POS	A1	F1	FIELD	ARMATURE	NEG	A2	F2	FIELD	ARMATURE
-			POWER		FIELD	ARMATURE	NEG	A2	F2	FIELD	ARMATURE
-			POWER				POS	A1	F1
	SP	CONNECTIONS					POWER
		LEFT CONTROL					CONNECTIONS
		NEG	A2	F2			RIGHT CONTROL
P	SP

	TRACTION	DESCRIPTION OF STATUS
	STATUS CODE
	-46	“Look Ahead” test for A2 volts less
	-46	than 12% of battery volts.
	MEMORY RECALL	CORRECTIVE ACTIONS
	NO	CORRECTIVE ACTIONS
	NO
		SYMPTOM
	Circuits valid	Line contactor will not pick up.
	Circuits valid
	for	POSSIBLE CAUSE
	Traction	POSSIBLE CAUSE
	Traction	Check for short circuit from the motor armature
	Controller	to the frame of the vehicle.

Defective control.

•Replace controller unit.

CAUSE OF STATUS INDICATION

This status code will be displayed when the voltage at A2 is less than 12% of battery volts.

TROUBLE-SHOOTING DIAGRAM

				BRAKE SW.
FU5	P2 KEY SWITCH P1			SEATSW.	STARTSW.	FOR.SW.	REV. SW.
FU7			SP	SEATSW.	STARTSW.	FOR.SW.	REV. SW.
	TO	P5
	TO		L
FU6	ACCESSORIES	P4
FU6	P3	P4
	PY7					P4
	PY12 P18		P17 P1 P2	P6	P3	P4	P5
	PY10		OSCILLATOR CARD		P7	P10 P9 P12 P8
	PY11		LEFT CONTROL
LINE FU1
							STEER
FU2							ANGLE
FU2					ACC POT		POT
					ACC POT

+	FU4								BDI INTERRUPT
+	FU4
	P
		POS	A1	F1	FIELD	ARMATURE	NEG	A2	F2	FIELD	ARMATURE
-			POWER		FIELD	ARMATURE	NEG	A2	F2	FIELD	ARMATURE
-			POWER				POS	A1	F1
	SP	CONNECTIONS					POWER
		LEFT CONTROL					CONNECTIONS
		NEG	A2	F2			RIGHT CONTROL
P	SP

January 2000

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Contents Installation and Operation Table of Contents 41-45 20-4046-52 57-62Motor Characteristics Basic Operation and FeaturesSolid-State Reversing More Features with Fewer ComponentsFlexible System Application Slows with the increase of current in the field1.c Control Acceleration 1.b Creep Speed2 Current Limit 3.c Pedal Position Plug Braking4.b Speed Limits 6 Steer Pump Contactor Time Delay4.c Proportional Operation for Dual Motor Vehicles 5 Ramp Operation 5a Ramp Start7 On-Board Coil Drivers & Internal Coil Suppression Diagnostics 1 Systems DiagnosticsSystem Protective Override 1 Static Return to Off SRO 2 Accelerator Volts Hold Off4 Battery Discharge Indication BDI 3.a Maintenance Alert & Speed Limit3 Hourmeter Readings 4.a Internal Resistance CompensationBasic Operation and Features Outline DRAWINGS, Elementary Drawings and INPUTS/OUTPUTS Part NumberArgument Outline SX-3 and SR-3 Package Size Drawings and INPUTS/OUTPUTS Section DRAWINGS, Elementary Drawings and INPUTS/OUTPUTS ControlPIN Connections to Main Plug 23 PIN and Y Plug 12 PINDiagnostic Status Codes Medium-Power Signals Level MP High-Level Signals Level H2.d. High Power Signals Level HP Cable Spacing GuidelinesCleaner Reconnect plugs328A1777G1 General Troubleshooting Instructions Traction Control Codes No seat switch or deadman switchTraction Status CodeDescription of Status Cause of Status Indication Reverse directional switch is closed onStart switch fails to close Accelerator depressed with noDirection selected KEY Negative Directional switches are closed at Both the forward and reverseSame time Initial key switch closure Start switch closed on power up afterDischarged battery Motor field current is high on start up Reverse directionForward direction Volts DC Power supply is less than 10 volts Run modeMotor field current is too high during Traction Controller Slave/auxiliary control Open thermal protector TP or Transistor over temperatureLow Motor armature offset voltage is tooArmature transistor did not turn off ProperlyThan 12% of battery volts Armature transistor did not turn onLook Ahead test for A2 volts less Motor field current is too low during Capacitor volts are low before the lineContactor closes Controller motor current sensor Input too low during runningLine driver input P2-17 is less Description Armature transistor limit Armature current exceedsVerify connection between the master control P21 Traction Status Code Symptom TMM Status Codes TemperatureSteer Plug P5 pump is shorted to positive Plug P8 pump is shorted to positive Corrective Actions TROUBLE-SHOOTING Diagram YES Symptom PumpPossible Cause Open thermal protector TP1 or Transistor is over temperaturePump Controller motor current No power to pump motorSensor input is missing Control rangePower Transistor Q1 did not turn on Power Transistor Q1 did notTurn off properly With no pump contactor, controlContactor closes Capacitor volts are low after the lineController motor current Sensor input voltage polarityCheck Voltage at capacitor 1C is less than Volts Battery voltage is less thanTMM7A TMM7A Outline Drawings 3 TMM Pump Control ConnectionsSTART-UP Display Sequence Adjustable FeaturesAccessing Stored Status Codes With GE Handset ActionRemarks Function Function 10 Field Current for Regen Battery volts Set units Battery VoltsInternal Resistance Compensation Function 16 Stall Trip Point with % ON-TIME PushFunction 19 Maintenance Code Tens and Units Hours SET Function 25 MonitorFunction 26 Base Ratio Function 49 Mode 1 Field Weakening Start Push Function 51 Mode 1 MAX Armature % onFunction 28 Stored Status Code Count Pointer Push Function 55 Mode 2 MAX Armature % on Function 52 Mode 2 Armature Controlled AccelerationFunction 57 Mode 3 Field Weakening Start Function 59 Mode 3 MAX Armature % onField Current Summary of Current Limit AdjustmentsFunction Current Limit Function 14 not ApplicableFunction 16 Speed / Torque Compensation Function 48 Mode 1 Controlled Acceleration Push Speed / Torque Compensation Table Voltage SettingFunction 49 Mode 1 Speed Limit 2 SL2 Push Function 50 Mode 1 Speed Limit 3 SL3Function 54 Mode 2 Speed Limit 3 SL3 Function 53 Mode 2 Speed Limit 2 SL2Function 55 not Applicable Function 59 not ApplicableApplication Dash DisplaysStandard Dash Displays ConnectionsOutline Drawings Start-Up Display SequenceTurn Angle Potentiometer Installation SetupOperation Degree Potentiometer for Steer Angle Input Degree Potentiometer Left Right RS-232 Memory MAP Tables Traction ControlRestrictions Function Reset to Zero Only Stored Status Code #6 Reset to Zero Only Stored Status Code #5Reset to Zero Only HoursTens/Ones Reset to Zero Only HoursThou/HunReset to Zero Only Dash Display CA-1 Dash Display FWS-1 Reset to Zero Only Stored Status Code #16None Dash Display Ratio2-1 None