Kubota 07-CR-E5 - Barometric Pressure Sensor Error (DTC P2228; 108-4, P2229; 108-3)

COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S273
(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):
• 65 kPa (0.66 kgf/cm
2
, 9.4 psi) [default value]
Recovery from error:
• Diagnostic counter = zero or Key switch turn OFF
9Y3200007CRS0422US0
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):
• 65 kPa (0.66 kgf/cm
2
, 9.4 psi) [default value]
Recovery from error:
• Diagnostic counter = zero or Key switch turn OFF
9Y3200007CRS0423US0
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.
9Y3200007CRS0424US0
Service
specification
Atmospheric pressure
Actual atmospheric pressure (Approx. 100 kPa
(1.02 kgf/cm
2
, 14.5 psi))
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
KiSC issued 03, 2022 A