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BOBCAT 435 DIAGNOSTICS SERVICE CODE AND TROUBLESHOOTING

Number Codes List

CODE CODE

02-16 Hydraulic charge filter not connected 20-02 Two speed output error ON

02-17 Hydraulic charge filter plugged 20-03 Two speed output error OFF

03-09 Battery voltage low 21-02 Glow plug output error ON

03-10 Battery voltage high 21-03 Glow plug output error OFF

03-11 Battery voltage extremely high

03-14 Battery voltage extremely low 22-02 Starter relay output error ON

03-22 Battery voltage out of range low 22-03 Starter relay output error OFF

04-14 Oil pressure extremely low 26-02 Front base output error ON

04-15 Oil pressure shutdown level 26-03 Front base output error OFF

05-09 Hydraulic charge pressure low 27-02 Front rod output error ON

05-14 Hydraulic charge pressure extremely low 27-03 Front rod output error OFF

05-15 Hydraulic charge pressure shutdown level

05-21 Hydraulic charge pressure out of range high 28-02 Diverter output error ON

05-22 Hydraulic charge pressure out of range low 28-03 Diverter output error OFF

06-10 Engine speed high 30-28 Watch dog failure

06-11 Engine speed extremely high

06-15 Engine speed shutdown level 31-28 Recovery mode failure

06-18 Engine speed out of range high

33-23 Controller not calibrated

07-10 Hydraulic oil temperature high

07-11 Hydraulic oil temperature extremely high 35-05 Hydraulic fan solenoid short to battery

07-15 Hydraulic oil temperature shutdown level 35-06 Hydraulic fan solenoid short to ground

07-21 Hydraulic oil temperature out of range high

07-22 Hydraulic oil temperature out of range low 60-21 Sec. aux. thumbswitch out of range high

60-22 Sec. aux. thumbswitch out of range low

08-10 Engine coolant temperature high 60-23 Sec. aux. thumbswitch not calibrated

08-11 Engine coolant temperature extremely high

08-15 Engine coolant temperature shutdown level 62-04 Load moment monitoring in error

08-21 Engine coolant temperature out of range high

08-22 Engine coolant temperature out of range low 63-05 Work group/travel console sensor

63-06 Work group/travel console sensor

09-09 Fuel level low

09-21 Fuel level out of range high 64-05 Switched power/acc. relay short to battery

09-22 Fuel level out of range low 64-06 Switched power/acc. relay short to ground

64-07 Switched power/acc. relay open circuit

12-21 Primary auxiliary PWM switch out of range high

12-22 Primary auxiliary PWM switch out of range low 65-02 Work group/travel lockout solenoid error ON

12-23 primary auxiliary PWM switch not calibrated 65-03 Work group/travel lockout solenoid error OFF

65-05 Work group/travel lockout solenoid short to battery

13-05 Fuel shut-off hold solenoid short to battery 65-06 Work group/travel lockout solenoid short to ground

13-06 Fuel shut-off hold solenoid short to ground 65-07 Work group/travel lockout solenoid open circuit

13-07 Fuel Shut-off hold solenoid secondary open circuit

66-05 Travel solenoid short to battery

14-02 Fuel shut-off pull solenoid short to batter 66-06 Travel solenoid short to ground

14-03 Fuel shut-off pull solenoid short to ground

 

TROUBLESHOOTING

Chart

The following troubleshooting chart is provided for assistance in locating and correcting problems which are most

common. Many of the recommended procedures must be done by authorized Bobcat Service personnel only.

PROBLEM CAUSE

Slow cranking speed 1, 2, 3, 4

Engine will not start 2, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 19, 27, 28, 29

Difficult to start 5, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 25, 27, 28, 29

No power from engine 8, 9, 10, 11, 12, 13, 15, 16, 17, 21, 22, 24, 25, 26, 28, 29

Engine is mis-firing 8, 9, 11, 12, 13, 15, 16, 17, 21, 22, 24, 25, 26, 28

Too much fuel consumption 10, 12, 13, 15, 16, 17, 19, 20, 21, 23, 24, 25, 27, 28, 29

Black exhaust 10, 12, 13, 15, 16, 17, 19, 20, 21, 23, 24, 25, 27, 28, 29

Blue/white exhaust 4, 10, 15, 16, 17, 21, 23, 27, 29, 30, 50

Low oil pressure 4, 31, 32, 33, 34, 35, 37, 38, 39, 52

Engine knocking 13, 15, 16, 19, 22, 24, 25, 27, 29, 31, 40, 41, 53

Engine running rough 7, 8, 9, 10, 11, 12, 13, 17, 18, 22, 24, 25, 26, 29, 40, 53

Vibration 12, 13, 17, 21, 22, 25, 26, 29, 40, 42, 43

High oil pressure 4, 33, 36

Overheating 10, 12, 13, 15, 16, 20, 21, 40, 44, 45, 46, 47, 48, 51

Too much crankcase pressure 22, 27, 29, 30, 40, 49

Poor compression 10, 16, 21, 24, 25, 27, 28, 29, 30, 41, 53

Start and stop 9, 10, 11

KEY TO CORRECT THE CAUSE

  1. Battery capacity low 28. Worn valves and seat
  2. Bad electrical connections 29. Broken or worn piston rings
  3. Faulty starter motor 30. Worn valve stems or guides
  4. Incorrect grade of oil 31. Worn or damaged bearings
  5. Low cranking speed 32. Not enough oil in the oil pan
  6. Fuel tank empty 33. Switch is defective
  7. Faulty stop control operation 34. Oil pump worn
  8. Plugged fuel line 35. Relief valve is stuck open
  9. Plugged fuel filter 36. Relief valve is stuck closed
  10. Restriction in the air cleaner 37. Broken relief valve spring
  11. Air in the fuel system 38. Faulty suction pipe
  12. Faulty fuel injection pump 39. Plugged oil filter
  13. Faulty fuel injectors 40. Piston seizure
  14. Broken injection pump drive 41. Incorrect piston height
  15. Incorrect injection pump timing 42. Faulty engine mounting
  16. Incorrect valve timing 43. Incorrect alignment of flywheel
  17. Poor compression 44. Faulty thermostat
  18. Plugged fuel tank vent 45. Restriction in water jacket
  19. Incorrect grade of fuel 46. Loose alternator belt
  20. Exhaust pipe restriction 47. Plugged radiator
  21. Cylinder head gasket leaking 48. Plugged breather pipe
  22. Over heating 49. Plugged breather pipe
  23. Cold running 50. Damaged valve stem oil deflectors
  24. Incorrect tappet adjustment 51. Coolant level too low
  25. Sticking valves 52. Plugged oil pump pipe strainer
  26. Incorrect high pressure fuel lines 53. Broken valve spring
  27. Worn cylinder bores
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