Barometric Pressure Sensor Error (Dtc P2228 / 108-4, P2229 / 108-3) - Kubota 07-CR-E5 Manual

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

(49) Barometric Pressure Sensor Error (DTC P2228 / 108-4, P2229 / 108-3)

P2228 / 108-4: Barometric pressure sensor error (Low side)
Behaviour during malfunction:
• Insufficient output
Detection item:
• Sensor / Engine ECU internal circuit short to ground
DTC set preconditions:
• Battery voltage is normal
DTC set parameter:
• Barometric pressure sensor voltage:
[Engine ECU (Denso)]
1.6 V or less
[Engine ECU (Kubota)]
0.5 V or less
Engine warning light:
• ON
Limp home action by engine ECU (system action):
2
• 65 kPa (0.66 kgf/cm , 9.4 psi) [default value]
Recovery from error:
• Diagnostic counter = zero or Key switch turn OFF
P2229 / 108-3: Barometric pressure sensor error (High side)
Behaviour during malfunction:
• Insufficient output
Detection item:
• Sensor / Engine ECU internal circuit short to +B
DTC set preconditions:
• Battery voltage is normal
DTC set parameter:
• Barometric pressure sensor voltage:
[Engine ECU (Denso)]
4.4 V or more
[Engine ECU (Kubota)]
4.5 V or more
Engine warning light:
• ON
Limp home action by engine ECU (system action):
2
• 65 kPa (0.66 kgf/cm , 9.4 psi) [default value]
Recovery from error:
• Diagnostic counter = zero or Key switch turn OFF
1. Check the Atmospheric Pressure Signals
1. Place the key switch in the ON position, and check the
"Atmospheric pressure" on the diagnosis tool data monitor.
Atmospheric pressure
Service
Actual atmospheric pressure (Approx. 100 kPa
specification
(1.02 kgf/cm
OK Clear the DTC and check whether it is detected again or not.
OK Normal.
NG Replace the engine ECU.
NG Go to "2. Check the DTC".
(a) CAN1 Connector
1-S273
COMMON RAIL SYSTEM
9Y3200007CRS0422US0
9Y3200007CRS0423US0
2
, 14.5 psi))
9Y3200007CRS0424US0
KiSC issued 03, 2022 A