Scv Drive System Abnormality (Dtc P0628 / 1347-4, P0629 / 1347-3) - Kubota 07-CR-E5 Manual

07-CR-E5,07-CR-TE5,07-CR-TIE5, DM

(31) 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 (Engine ECU: V12 terminal) is not activated
DTC set parameter:
• Open circuit or ground short of SCV
Engine warning light:
• ON
Limp home action by engine ECU (system action):
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
• EGR stop
• Intake throttle 100 % open
• Engine forcibly stopped 60 sec. later
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+B short circuit of SCV
DTC set preconditions:
• Battery voltage is normal
• Key switch is ON
• Starter Switch signal (Engine ECU: V12 terminal) is not activated
DTC set parameter:
• +B short circuit of SCV
Engine warning light:
• ON
Limp home action by engine ECU (system action):
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
• EGR stop
• Intake throttle 100 % open
• Engine forcibly stopped 60 sec. later
Recovery from error:
• Key switch turn OFF
1-S223
COMMON RAIL SYSTEM
9Y3200007CRS0337US0
9Y3200007CRS0338US0
KiSC issued 03, 2022 A