Toyota Forklift Fault codes List

DIAGNOSIS DISPLAY METHOD
1. Diagnosis display method
The diagnosis is displayed by means of an error code as
shown in the illustration to the left, and by the lights turning on.
When the ignition key switch is turned ON, the lamp lights
once to allow checking for the bulb, and then turns off again if
the status is normal.
With the ignition key switch ON, if an abnormality is detected
when the vehicle is stopped, travelling or performing meterials
handling operations, an error code is displayed and the lamps
turn on as a warning.
When this happens, stop the vehicle immediately and check
the error code.
2. Diagnosis memory display method
To display the diagnosis memory display, there are a method using the hour meter and tilt lever, a method using
the optional display, and a method using a plug-in analyzer.
Here the display method using the hour meter and tilt lever is described.
(1) From the main menu, display the diagnosis memory menu. For how to display the main menu, refer to
page

18-30.

(2) A diagnosis No. and error code are displayed each time the knob switch is pressed and released. Each

error code and the time at which it occurred are displayed alternately at 2 second intervals.

Note:

• The maximum number of error codes that can be stored is 10. The smaller the diagnosis No., the more

recent the error is.

• The stored time of an error code appearing just when the ignition key switch is turned ON may be stored

as 0.0.

(3) Connect the matching connector and turn the ignition key switch OFF.

Electrical System Troubleshooting:

Indication

Wrench
lamp

Spanner

Detection ECU

Error mode

Phenomenon on vehicle

Described on page

01-1

01-1

Blinking

4Y-ECS

Fuel feedback control error (gasoline) rich

The engine speed is unstable and it may stop.

19-14

01-1

01-1

Blinking

4Y-ECS

Fuel feedback control error (gasoline) rich

The engine speed is unstable and it may stop.

19-14

01-2

01-2

Blinking

4Y-ECS

Fuel feedback control error (gasoline) lean

   

01-3

01-3

Blinking

4Y-ECS

Fuel feedback control error (LPG/CNG) rich

19-18

 

01-4

01-4

Blinking

4Y-ECS

Fuel feedback control error (LPG/CNG) lean

   

01-5

01-5

Blinking

4Y-ECS

O2 sensor open abnormality

The engine speed is unstable and it may stop.

19-23

01-6

01-6

Blinking

4Y-ECS

O2 sensor heater open abnormality

Display only

19-25

02-1

02-1

Blinking

4Y-ECS

Intake temperature sensor open abnormality

The engine may have a problem at low
temperatures.

19-27

02-2

02-2

Blinking

4Y-ECS

Intake temperature sensor short abnormality

   

03-1

03-1

Blinking

4Y-ECS

Intake pipe pressure sensor open abnormality

The engine may have a problem

19-29

03-2

03-2

Blinking

4Y-ECS

Intake pipe pressure sensor short abnormality

   

04-1

04-1

Blinking

4Y-ECS

Coolant temperature sensor open abnormality

The engine may have a problem at low
temperatures.

19-31

04-2

04-2

Blinking

4Y-ECS

Coolant temperature sensor short abnormality

   

05-1

05-1

Blinking

4Y-ECS

Throttle position sensor 1 open abnormality

Limting speed of traveling and materials
handling due to limited engine power output

19-33

05-2

05-2

Blinking

4Y-ECS

Throttle position sensor 1 short abnormality

   

05-3

05-3

Blinking

4Y-ECS

Throttle position sensor 2 open abnormality

   

05-4

05-4

Blinking

4Y-ECS

Throttle position sensor 2 short abnormality

   

05-5

05-5

Blinking

4Y-ECS

Throttle position sensor offset abnormality

   

05-6

05-6

Blinking

4Y-ECS

Throttle position sensor out of range error

   

06-1

06-1

Blinking

4Y-ECS

Throttle motor drive circuit open abnormality

Limting speed of traveling and materials
handling due to limited engine power output

19-35

06-2

06-2

Blinking

4Y-ECS

Throttle motor drive circuit short abnormality

   

06-3

06-3

Blinking

4Y-ECS

Throttle motor power supply circuit open abnormality

19-37

 

06-4

06-4

Blinking

4Y-ECS

Throttle motor power supply circuit short abnormality

   

06-5

06-5

Blinking

4Y-ECS

Throttle motor seizing abnormality

19-38

 

06-6

06-6

Blinking

4Y-ECS

Electronic throttle system error

19-40

 

07-1

07-1

Blinking

4Y-ECS

Air-fuel ratio motor open abnormality

The engine speed is unstable and it may stop.

19-41

08-1

08-1

Blinking

4Y-ECS

Low voltage (battery line open) error

Display only

19-43

09-1

09-1

Blinking

4Y-ECS

Ignition signal error

The engine speed is unstable and it may stop.

19-44

0A-1

0A-1

Blinking

4Y-ECS

Fuel specification determination signal error

Display only

19-47

0A-2

0A-2

Blinking

4Y-ECS

Fuel specification changeover switch error

Display only

 

0A-3

0A-3

Blinking

4Y-ECS

Fuel specification type unmatch

Engine may sto

 

 

 

0A-4

0A-4

Blinking

4Y-ECS

Engine specification determination error

Limting speed of traveling and materials
handling due to limited engine power output

19-49

13-1

13-1

Blinking

ASC

Motor relay contact point open abnormality

Continuation of engine idling status

19-50

13-2

13-2

Blinking

ASC

Motor relay contact point short abnormality

Display only

 

13-3

13-3

Blinking

ASC

Motor relay open circuit or load short abnormality

Continuation of engine idling status

 

15-1

15-1

Blinking

ASC

NMR switch open abnormality

The engine may idle during full acceleration.

19-52

15-2

15-2

Blinking

ASC

NMR switch short abnormality

Continuation of engine idling status

 

15-3

15-3

Blinking

ASC

Idle / NMR switch simultaneously ON error

Continuation of engine idling status after
acceleration off.

19-55

16-1

16-1

Blinking

ASC

Idle switch open abnormality

Continuation of engine idling status

19-58

16-2

16-2

Blinking

ASC

Idle switch short abnormality

   

18-1

18-1

Blinking

4Y-ECS

Cam angle sensor open abnormality

Engine stop

19-61

ASC

Engine speed sensor open abnormality

Partial limitation of the drive control function.

19-65

     

18-2

18-2

Blinking

4Y-ECS

Cam angle sensor open abnormality (on start up)

Engine will not start

19-61

ASC

Engine speed sensor GND short abnormality

Partial limitation of the drive control function.

19-65

     

18-3

18-3

Blinking

4Y-ECS

Crank angle sensor open abnormality

Display only

19-63

1F-1 ~ 8

1F-1 ~ 8

Blinking

ASC

CPU error

Continuation of engine idling status
Maximum speed may be limited
Function of automatic idle speed increse during
lifting limited

19-67

41-1

41-1

Blinking

SAS/OPS

Matching connector open abnormality

Display only

19-68

51-1

51-1

Blinking

SAS/OPS

Speed sensor open abnormality

The vehicle speed indicator shows 0 km/h
Partial limitation of the rear wheel swing control
function.
Knob offest compensation stops
Partial limitation of the drive control function.

19-69

51-2

51-2

Blinking

SAS/OPS

Speed sensor GND short abnormality

   

52-1

52-1

Blinking

SAS/OPS

Yaw rate sensor open abnormality

Partial limitation of the rear wheel swing control
function

19-71

52-2

52-2

Blinking

SAS/OPS

Yaw rate sensor VCC short abnormality

   

52-3

52-3

Blinking

SAS/OPS

Yaw rate sensor neutral voltage error

   

54-1

54-1

Blinking

SAS/OPS

Swing lock solenoid open circuit or load short abnormality

Partial limitation of the rear wheel swing control
function

19-73

61-1

61-1

Blinking

SAS/OPS

Load sensor open abnormality

Partial limitation of the rear wheel swing control
function
Partial limitation of mast control function
Limitation of the drive control function
Load indicator cannot display

19-75

61-2

61-2

Blinking

SAS/OPS

Load sensor VCC short

   

62-1

62-1

Blinking

SAS/OPS

Tilt angle sensor open abnormality

Partial limitation of mast control function

19-78

62-2

62-2

Blinking

SAS/OPS

Tilt angle sensor VCC short abnormality

   

63-1

63-1

Blinking

SAS/OPS

Tilt switches simultaneously ON

Partial limitation of mast control function

19-81

63-2

63-2

Blinking

SAS/OPS

Tilt switch forward tilt SW short

   

63-3

63-3

Blinking

SAS/OPS

Tilt switch backward tilt SW short

   

64-1

64-1

Blinking

SAS/OPS

Lift lower lock solenoid open circuit or load short abnormality

Lift lower may stop

19-84

65-1

65-1

Blinking

SAS/OPS

Tilt control solenoid open circuit or load short abnormality

Forward tilt may stop, backward tilt may go fully
back

19-86

66-1

66-1

Blinking

SAS/OPS

Outside matching value range for tilt angle error

Partial limitation of mast control function

19-88

67-1

67-1

Blinking

SAS/OPS

Lifting height switch open abnormality

Partial limitation of the rear wheel swing control
function
Partial limitation of mast control function
Limitation of the drive control function
Load indicator display is unsteady

19-89

68-1

68-1

Blinking

SAS/OPS

Lift switch raise and lower simultaneously ON error

Lowering may stop
Function of automatic idle speed increse during
lifting limited

19-92

68-2

68-2

Blinking

SAS/OPS

Lift switch raise SW short abnormality

Function of automatic idle speed increse during
lifting limited

 

68-3

68-3

Blinking

SAS/OPS

Lift switch lower SW short abnormality

Lowering may stop

 

69-1

69-1

Blinking

SAS/OPS

Backward tilt lock solenoid open circuit or load short
abnormality

Backward tilt may stop

19-95

71-1

71-1

Blinking

SAS/OPS

Tire angle sensor open abnormality

Knob offest compensation stops

19-97

71-2

71-2

Blinking

SAS/OPS

Tire angle sensor VCC short abnormality

   

72-1

72-1

Blinking

SAS/OPS

Steering-wheel angle sensor SS1 open abnormality

Knob offest compensation stops

19-100

72-2

72-2

Blinking

SAS/OPS

Steering-wheel angle sensor SS2 open abnormality

   

72-3

72-3

Blinking

SAS/OPS

Steering-wheel angle sensor SSC open abnormality

   

72-4

72-4

Blinking

SAS/OPS

Steering-wheel angle sensors SS1 and SS2 open abnormali

   

73-1

73-1

Blinking

SAS/OPS

Knob position compensation solenoid open circuit or load short
abnormality

Knob offest compensation stops

19-108

74-1

74-1

Blinking

SAS/OPS

Outside matching value range for tire angle error

Knob offest compensation stops

19-110

A5-1

A5-1

Blinking

SAS/OPS

Seat switch GND short abnormality

Traveling and material handling possible even
after leaving the seat.
Parking brake reminder and release reminder
alarm partially disabled.

19-111

A7-1

A7-1

Blinking

SAS/OPS

Brake switch GND short abnormality

Partial limitation of the drive control function

19-113

AD-1

AD-1

Blinking

SAS/OPS

CAN communication 4Y-ECS or ASC data reception error

Partial limitation of the drive control function

19-115

AD-2

AD-2

Blinking

4Y-ECS

CAN communication SAS/OPS data reception error

Partial limitation of the drive control function

 

AD-7

AD-7

Blinking

SAS/OPS

CAN communication display data reception error

Limitation of the drive control function
Function of automatic idle speed increse during
lifting limited
Display warning function operation failure

 

AD-8

AD-8

Display

CAN communication SAS/OPS data reception error

Display not stable

 

AF-1 3

AF-1 ~ 3

On

SAS/OPS

CPU error

Various control operations not stable

19-119

AF-4 8

AF-4 ~ 8

Blinking

SAS/OPS

     

C4-1

C4-1

Blinking

4Y-ECS

Accelerator sensor 1 open

Limting speed of traveling and materials
handling due to limited engine power output

19-123

ASC

           

C4-2

C4-2

Blinking

4Y-ECS

Accelerator sensor 1 short

   

ASC

           

C4-3

C4-3

Blinking

4Y-ECS

Accelerator sensor 2 open

   

ASC

           

C4-4

C4-4

Blinking

4Y-ECS

Accelerator sensor 2 short

   

ASC

           

C4-5

C4-5

Blinking

4Y-ECS

Accelerator sensor offset abnormality

   

ASC

           

C4-6

C4-6

Blinking

4Y-ECS

Accelerator sensor out of range error

   

C7-1

C7-1

Blinking

SAS/OPS

Shift lever forward and reverse travel switch open abnormality

Travel return to neutral operation disabled
Partial limitation of the drive control function.

19-126

C7-2

C7-2

Blinking

SAS/OPS

Shift lever forward and reverse travel switches simultaneously
ON error

Travelling may stop
Partial limitation of the drive control function.

 

CA-1

CA-1

Blinking

SAS/OPS

Forward and reverse travel T/C relay open circuit or load short
abnormality

Travelling and material handling enabled even
after leaving the seat.

19-129

Indic

ation

Wrench
lamp

Spanner

Detection ECU

Error mode

Phenomen

 

EC-1

EC-1

Blinking

SAS/OPS

Unload solenoid open circuit or load short abnormality

Travelling and material handling enabled even
after leaving the seat.

19-131

F1-1

Blinking

Meter

SAS/OPS data reception error

Display only

19-133

F2-1

Blinking

       

F4-1 ~ 8

F4-1 ~ 8

Blinking

Display

CPU error

Display not stable

19-134

H1-1

H1-1

Blinking

SAS/OPS

Lift lever potentiometer open abnormality

Lift stop

19-135

H1-2

H1-2

Blinking

SAS/OPS

Lift lever potentiometer VCC short abnormality

   

H1-3

H1-3

Blinking

SAS/OPS

Lift lever potentiometer assembly error

   

H1-4

H1-4

Blinking

SAS/OPS

Lift lever potentiometer neutral abnormality

Material handling disabled

 

H1-5

H1-5

Blinking

SAS/OPS

Lift lever potentiometer matching value abnormality

Lift stop

 

H2-1

H2-1

Blinking

SAS/OPS

Tilt lever potentiometer open abnormality

Tilt stop

19-138

H2-2

H2-2

Blinking

SAS/OPS

Tilt lever potentiometer VCC short abnormality

   

H2-3

H2-3

Blinking

SAS/OPS

Tilt lever potentiometer assembly error

   

H2-4

H2-4

Blinking

SAS/OPS

Tilt lever potentiometer neutral error abnormality

Material handling disabled

 

H2-5

H2-5

Blinking

SAS/OPS

Tilt lever potentiometer matching error

Tilt stop

 

H3-1

H3-1

Blinking

SAS/OPS

Attachment 1 lever potentiometer open abnormality

Attachment 1 stop

19-141

H3-2

H3-2

Blinking

SAS/OPS

Attachment 1 lever potentiometer VCC short abnormality

   

H3-3

H3-3

Blinking

SAS/OPS

Attachment 1 lever potentiometer combination error

   

H3-4

H3-4

Blinking

SAS/OPS

Attachment 1 lever potentiometer neutral abnormality

Material handling disabled

 

H3-5

H3-5

Blinking

SAS/OPS

Attachment 1 lever potentiometer matching value abnormality

Attachment 1 stop

 

H4-1

H4-1

Blinking

SAS/OPS

Attachment 2 lever potentiometer open abnormality

Lever 2 stop

19-144

H4-2

H4-2

Blinking

SAS/OPS

Attachment 2 lever potentiometer VCC short abnormality

   

H4-3

H4-3

Blinking

SAS/OPS

Attachment 2 lever potentiometer combination error

   

H4-4

H4-4

Blinking

SAS/OPS

Attachment 2 lever potentiometer neutral abnormality

Material handling disabled

 

H4-5

H4-5

Blinking

SAS/OPS

Attachment 2 lever potentiometer matching value abnormality

Lever 2 stop

 

H5-1

H5-1

Blinking

SAS/OPS

Lift PUSH solenoid open abnormality

Lift may stop

19-147

H5-2

H5-2

Blinking

SAS/OPS

Lift PULL solenoid open abnormality

   

H6-1

H6-1

Blinking

SAS/OPS

Tilt PUSH solenoid open abnormality

Tilt may stop

19-149

H6-2

H6-2

Blinking

SAS/OPS

Tilt PULL solenoid open abnormality

   

H7-1

H7-1

Blinking

SAS/OPS

Attachment 1 PUSH solenoid open abnormality

Attachment 1 may stop

19-151

H7-2

H7-2

Blinking

SAS/OPS

Attachment 1 PULL solenoid open abnormal

   

H8-1

H8-1

Blinking

SAS/OPS

Attachment 2 PUSH solenoid open abnormality

Attachment 2 may stop

19-153

H8-2

H8-2

Blinking

SAS/OPS

Attachment 2 PULL solenoid open abnormality

   

HA-1

HA-1

Blinking

SAS/OPS

3/4 way change relay GND short abnormality

Attachmen

 
Comments: 1
  • #1

    Joseph mpanda (Monday, 18 July 2022 07:51)

    I need your helping how to clear
    this two codes E C4-4 and E 13-3