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DTC
Trouble
P0109
Low Booster Pressure
Sensor Signal
P0106
High Booster Pressure
Sensor Signal
DIAGNOSIS
DI ENG SM - 2004.4
Help
- Out of signal range about boost pres-
sure sensor at Ignition key-On and En-
gine Stop (Lower than specified values).
- Check the supply voltage to sensor.
- Actual boost pressure vs. Output
voltages.
• Raw Signal Range: 0.545 ~ 2.490 bar
• 0.4 bar: 0.6120 V
• 1.4 bar: 2.6520 V
• 2.4 bar: 4.6920 V
- Check the sensor wiring harness for ECU
pin #99 and #100 (open, poor contact).
- Visually check sensor and replace if
required.
- Replace the ECU if required.
- Check whether existing or not about
turbo boosting control malfunction
(P1235) simultaneously.
- If there is turbo boost control fault,
Should be checked followings also;
• Leakage before turbo system
• Vacuum pump malfunction
• Waste gate' solenoid valve
• Turbo charger system defect or mal-
function itself
• Air inlet restriction
• Exhaust system restriction
- Out of signal range about boost pres-
sure sensor at Ignition key-On and En-
gine Stop (Higher than specified
values).
- Check the supply voltage to sensor.
- Actual boost pressure vs. Output
voltages.
• Raw Signal Range: 0.545 ~ 2.490 bar
• 0.4 bar: 0.6120 V
• 1.4 bar: 2.6520 V
• 2.4 bar: 4.6920 V
- Check the sensor wiring harness for
ECU pin #99 and #100 (open, poor
contact).
- Visually check sensor and replace if
required.
- Replace the ECU if required.
- Check whether existing or not about
turbo boosting control malfunction
(P1235) simultaneously.
- If there is turbo boost control fault,
Should be checked followings also;
• Leakage before turbo system
• Vacuum pump malfunction
• Waste gate' solenoid valve
• Turbo charger system defect or
malfunction itself
• Air inlet restriction
• Exhaust system restriction
Torque
Torque
Delayed
Reduction
Reduction
Engine
(max.50%)
(max.20%)
Stop
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
DI10-31
Immediately
Limp
Engine
Home
Stop
Mode
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