Johnston Equipment Forklift Error Code List

Fault Codes	Diagnostic Codes	Possible Cases
524223-0	XMSN Reverse Pressure Greater Than Commanded Pressure	A. SENSOR SUPPLY OPEN CIRCUIT B. SENSOR FAILURE C. FUNCTIONAL FAILURE — MECHANICAL D. FUNCTIONAL FAILURE IN CONTROLLER
524225-0	XMSN Forward Pressure Greater Than Commanded Pressure
524223-1	XMSN Reverse Pressure Less Than Commanded	A. LOW TRANSMISSION OIL LEVEL B. SENSOR SUPPLY OPEN CIRCUIT C. SENSOR FAILURE D. FUNCTIONAL FAILURE — MECHANICAL E. FUNCTIONAL FAILURE IN CONTROLLER
524225-1	XMSN Forward Pressure Less Than Commanded
105-3	Intake Air Temperature (IAT) Sensor OORH	A. SENSOR WIRING OPEN CIRCUIT B. SENSOR SIGNAL SHORTED TO 5V OR BATTERY VOLTAGE C. SENSOR FAILURE D. FUNCTIONAL FAILURE IN CONTROLLER
110-3	Coolant Temperature Sensor OORH
177-3	Transmission Oil Temperature Sensor OORH
522603-3	Fuel Temp (LPG) Sensor OORH
105-4	Intake Air Temperature (IAT) Sensor OORL	A. SENSOR SIGNAL SHORTED TO SENSOR GROUND. B. SENSOR SIGNAL SHORTED TO FRAME GROUND. C. SENSOR FAILURE D. FUNCTIONAL FAILURE IN CONTROLLER
110-4	Coolant Temperature Sensor OORL
177-4	Transmission Oil Temperature Sensor OORL
522603-4	Fuel Temp (LPG) Sensor OORL
522712-3	Accelerator A Position Sensor OORH	A. SENSOR SUPPLY OPEN CIRCUIT (SENSOR SIGNAL GROUNDS) B. B SENSOR SIGNAL OPEN CIRCUIT C. SENSOR SIGNAL SHORTED TO BATTERY SOURCE D. SENSOR SIGNAL SHORTED TO SENSOR SUPPLY
522713-3	Accelerator B Position Sensor OORH
522712-4	Accelerator A Position Sensor OORL	A. SENSOR SUPPLY OPEN CIRCUIT (+5 VOLTS) B. SENSOR SIGNAL A OPEN CIRCUIT C. SENSOR SIGNAL SHORTED TO FRAME GROUND D. SENSOR SIGNAL SHORTED TO SENSOR GROUND E. SENSOR FAILURE F. FUNCTIONAL FAILURE IN CONTROLLER
522713-4	Accelerator B Position Sensor OORL
1079-31	5VE1 & 5VE2 Simultaneously OORH	A. ELECTRONIC THROTTLE ASSEMBLY (ETA) STICKY B. SENSOR (ETA) FAILURE C. FUNCTIONAL FAILURE IN CONTROLLER
51-2	Throttle Position Sensor Signals A and B Not Tracking Correctly
51-7	Throttle Position Sensor Signals A and B Not At Commanded Value
51-31	Throttle Position Sensor 1 & 2 Out of Range
2350-3	DTC 2350-3 - Front Work Lights Relay (RL4) Driver Output OORH	A. SAFETY SWITCH (IF EQUIPPED) IS DISCONNECTED B. SHORT ON RELAY DRIVER OUTPUT TO UNSWITCHED BATTERY (SEEWARNING BEFORE CONTINUING) C. SHORT ON RELAY DRIVER OUTPUT TO SWITCHED BATTERY. D. SHORT ON RELAY DRIVER OUTPUT TO ANOTHER OPERATED DEVICE E. CONTROLLER DRIVER OUTPUT TO RELAY COIL OPEN CIRCUIT F. RELAY COIL OR GROUND CONNECTION OPEN CIRCUIT G. FUNCTIONAL FAILURE IN CONTROLLER
522710-3	Throttle A Position Sensor OORH	A. SENSOR GROUND OPEN CIRCUIT B. SENSOR SIGNAL SHORTED TO SENSOR SUPPLY C. SENSOR SIGNAL SHORTED TO BATTERY SOURCE D. SENSOR FAILURE E. FUNCTIONAL FAILURE IN CONTROLLER
522711-3	Throttle B Position Sensor OORH
522710-4	Throttle A Position Sensor OORL	A. SENSOR SIGNAL OPEN CIRCUIT B. SENSOR SUPPLY OPEN CIRCUIT C. SENSOR SIGNAL SHORTED TO FRAME GROUND D. SENSOR SIGNAL SHORTED TO SENSOR GROUND E. SENSOR FAILURE F. FUNCTIONAL FAILURE IN CONTROLLER
522711-4	Throttle B Position Sensor OORL
521-3	Brake Pedal Position Sensor OORH	A. SENSOR GROUND OPEN CIRCUIT B. SENSOR SIGNAL SHORTED TO SENSOR SUPPLY C. SENSOR SIGNAL SHORTED TO BATTERY D. SENSOR FAILURE E. FUNCTIONAL FAILURE IN CONTROLLER
523780-3	Park Brake Position Sensor OORH
524245-3	Seat Occupancy Position Sensor OORH
521-4	Brake Pedal Position Sensor OORL	A. SENSOR SUPPLY OPEN CIRCUIT B. SENSOR SIGNAL OPEN CIRCUIT C. SENSOR SIGNAL SHORTED TO SENSOR GROUND D. SENSOR SIGNAL SHORTED TO FRAME GROUND E. SENSOR FAILURE F. FUNCTIONAL FAILURE IN CONTROLLER
523780-4	Park Brake Position Sensor OORL
524245-4	Operator Presence System Sensor OORL
523833-3	Glow Plug Relay Driver Output OORH	A. COIL DRIVER OUTPUT SHORTED TO BATTERY. B. FUNCTIONAL FAILURE IN CONTROLLER.
524195-3	Cold Start Relay Driver Output OORH
523833-4	Glow Plug Relay Driver Output OORL	A. COIL DRIVER OUTPUT SHORTED TO GROUND. B. FUNCTIONAL FAILURE IN CONTROLLER.
524195-4	Cold Start Relay Driver Output OORL
1079-31	5VE1 & 5VE2 Simultaneously OORH	A. 5 VOLT "E1" SUPPLY SHORTED TO SYSTEM SUPPLY SOURCE B. 5 VOLT "E2" SUPPLY SHORTED TO SYSTEM SUPPLY SOURCE C. 5VOLT E1 AND E2 SIMULTANEOUSLY SHORTED TO SYSTEM SUPPLY SOURCE D. FUNCTIONAL FAILURE IN CONTROLLER
524260-3	5VE2 Sensor Supply Circuit Voltage OORH
524261-3	5VE1 Sensor Supply Circuit Voltage OORH
96-3	Fuel Level Sensor OORH	A. SENSOR SIGNAL SHORTED TO BATTERY B. SENSOR SIGNAL/RETURN OPEN CIRCUIT C. SENSOR SIGNAL SHORTED TO GROUND D. SENSOR FAILURE
96-4	Fuel Level Sensor OORL
523833-3	Glow Plug Relay Driver Output OORH	A. COIL DRIVER OUTPUT SHORTED TO SYSTEM VOLTAGE B. COIL SHORT CIRCUIT C. FUNCTIONAL FAILURE IN CONTROLLER
523920-3	REV Circuit Shorted High
523930-3	FWD Circuit Shorted High
524195-3	Cold Start Relay Driver Output OORH
524269-3	Transmission Enable Valve Coil Driver Output OORH
523920-4	REV Circuit Shorted Low	A. COIL DRIVER OUTPUT SHORTED TO GROUND B. COIL/WIRING OPEN CIRCUIT C. FUNCTIONAL FAILURE IN CONTROLLER
523930-4	FWD Circuit Shorted Low
524269-4	Transmission Enable Valve Coil Driver Output OORL
522606-10	Post Catalytic Converter Oxygen (O2) Sensor (Slow Response)	A. OXYGEN (O2) SENSOR FAILURE B. FUNCTIONAL FAILURE IN CONTROLLER
522737-10	Pre Catalytic Converter Oxygen (O2) Sensor (Slow Response)
2000-12	CAN Tx Failure	A. OPEN/INTERMITTENT CIRCUIT ON CAN HI, CAN LO B. CAN HI AND CAN LO SHORTED TOGETHER C. OPEN CIRCUIT ON POWER/GROUND TO CAN CONNECTED DEVICES D. STG ON CAN HI E. STS/STB ON CAN LO F. CAN CONNECTED DEVICE FAILURE
2000-12	CAN Rx Failure
2000-14	CANbus Address Conflict Failure
522593-12	DTC 522593-12 - CANbus Communication Loss - ECU to EPR
524233-14	DTC 524233-14 - Boost Test Override	A. DISPLAY INTERNAL FAILURE
524234-14	DTC 524234-14 - Internal Processing Error
524236-XX	DTC 524236-XX - Boost Test Failure
190-2	DTC 190-2 - Engine RPM Sensor Output Is Less Than Engine Speed	A. OPEN CIRCUIT IN SENSOR SUPPLY B. SENSOR SIGNAL OPEN CIRCUIT OR SHORT TO GROUND C. SENSOR SIGNAL SHORTED TO BATTERY SOURCE D. SENSOR FAILURE E. FUNCTIONAL FAILURE IN CONTROLLER
190-7	DTC 190-7 - Engine Speed Exceeds Command
522120-1	DTC 522120-1 - Engine RPM Higher than XMSN Limit
522585-2	DTC 522585-2 - Engine RPM Sensor (Mazda Gas ECU)
523740-3	DTC 523740-3 - Truck has NO Forward or Reverse Motion	A. HIGH EXTERNAL MAGNETIC FIELDS B. DIRECTIONAL LEVER MECHANISM/MAGNETIC FAILURE C. DISPLAY SWITCH CLUSTER (DSC) FAILURE
523740-4	DTC 523740-4 - Truck has NO Forward or Reverse Motion
524255-3	DTC 524255-3 - DSC Temperature OORH	A. DISPLAY SWITCH CLUSTER (DSC) IS OVERHEATED
524255-4	DTC 524255-4 - DSC Temperature OORL
524255-3	DTC 524255-3 - DSC Temperature OORH	A. DISPLAY SWITCH CLUSTER (DSC) IS OVERHEATED
524255-4	DTC 524255-4 - DSC Temperature OORL
524255-3	DTC 524255-3 - DSC Temperature OORH	A. DISPLAY SWITCH CLUSTER (DSC) IS OVERHEATED
524255-4	DTC 524255-4 - DSC Temperature OORL
522655-0	DTC 522655-0 - Short Term Closed Loop Correction Bank 1 Less Than NOR -35% (Rich Engine Operation)	A. PROBLEMS THAT MAY CAUSE LEAN ENGINE OPERATION B. PROBLEMS THAT MAY CAUSE RICH ENGINE OPERATION C. SENSOR FAILURE D. FUNCTIONAL FAILURE IN CONTROLLER
522655-1	DTC 522655-1 - Short Term Closed Loop Correction Bank 1 Greater Than NOR 35% (Lean Engine Operation)
522660-0	DTC 522660-0 - Long Term Closed Loop Correction Bank 1 Less Than NOR -30% (Rich Engine Operation)
522660-1	DTC 522660-1 - Long Term Closed Loop Correction Bank 1 Greater Than NOR 30% (Lean Engine Operation)
523767-2	DTC 523767-2 - DSC Fault - Arrow Down Button Stuck	A. BUTTON FAILURE
523769-2	DTC 523769-2 - DSC Fault - Arrow Up Button Stuck
524206-2	DTC 524206-2 - DSC Fault - Rear Worklight Button Stuck
524208-2	DTC 524208-2 - DSC Fault - Front Worklight Button Stuck
524209-2	DTC 524209-2 - DSC Fault - Hourmeter Button Stuck