Scv Drive System Abnormality (Dtc P0628 / 1347-4, P0629 / 1347-3) - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM

(29) SCV Drive System Abnormality (DTC P0628 / 1347-4, P0629 / 1347-3)

P0628 / 1347-4: SCV drive system error
Behaviour during malfunction:
• Insufficinet output
• Worsening exhaust gas performance
Detection item:
• Open circuit or ground short circuit of SCV
DTC set preconditions:
• Battery voltage is normal
• Key switch is ON
• Starter Switch signal (ECU: B-54 terminal) is not activated
DTC set parameter:
• Open circuit or ground short of SCV
Engine warning light:
• ON
System action:
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
• Rail pressure limitation: Command pressure ≤ 80 MPa (820 kgf/cm
• EGR stop
Recovery from error:
• Key switch turn OFF
P0629 / 1347-3: +B short circuit of SCV
Behaviour during malfunction:
• Insufficinet output
• Worsening exhaust gas performance
Detection item:
• +B short circuit of SCV
DTC set preconditions:
• Battery voltage is normal
• Key switch is ON
• Starter Switch signal (ECU: B-54 terminal) is not activated
DTC set parameter:
• +B short circuit of SCV
Engine warning light:
• ON
System action:
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
• Rail pressure limitation: Command pressure ≤ 80 MPa (820 kgf/cm
• EGR stop
Recovery from error:
• Key switch turn OFF
2
, 12000 psi)
2
, 12000 psi)
1-S209
COMMON RAIL SYSTEM
9Y1200192CRS0761US0
9Y1200192CRS0762US0
KiSC issued 05, 2012 A