DESCRIPTION
Refer to DTC P010511.
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DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
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P01052A | Manifold Absolute Pressure / Barometric Pressure Sensor Signal Stuck in Range | Intake manifold pressure measured after engine start drops by less than 3 kPa [0.4 psi] compared to the intake manifold pressure (atmospheric pressure) measured before engine start (2 trip detection logic). |
| Comes on | DTC stored | SAE Code: P0106 |
MONITOR DESCRIPTION
When the intake manifold pressure measured after engine start drops by less than 3 kPa [0.4 psi] compared to the intake manifold pressure (atmospheric pressure) measured before engine start, the ECM interprets this as a malfunction of the manifold absolute pressure sensor and stores DTC P01052A.
MONITOR STRATEGY
Related DTCs | P0106: Manifold absolute pressure sensor stuck monitoring |
Required Sensors/Components (Main) | Manifold absolute pressure sensor |
Required Sensors/Components (Related) | - |
Frequency of Operation | Continuous |
Duration | 6 seconds |
MIL Operation | 2 driving cycles |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored | P0010, P1360, P1362, P1364, P1366, P2614 (Motor drive VVT system control module) P0011 (VVT system - advance) P0012 (VVT system - retard) P0014 (Exhaust VVT system - advance) P0015 (Exhaust VVT system - retard) P0016 (VVT system - misalignment) P0017 (Exhaust VVT system - misalignment) P0107, P0108 (Manifold absolute pressure) P0112, P0113 (Intake air temperature sensor) P0117, P0118 (Engine coolant temperature sensor) P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient coolant temperature for closed loop fuel control) P0335, P0337, P0338 (Crankshaft position sensor) P0340, P0342, P0343 (Camshaft position sensor) P0365, P0367, P0368 (Exhaust camshaft position sensor) P0401 (EGR system (closed)) P0489, P0490 (EGR control circuit) P106A (Evaporative emission control system pressure sensor - manifold pressure sensor correlation) |
Auxiliary battery voltage | 10.5 V or higher |
Engine coolant temperature | 30°C (86°F) or higher |
Intake air temperature | -10°C (14°F) or higher |
Engine speed | 900 rpm or higher |
Throttle valve | Close |
EGR valve | Close |
Atmospheric pressure | 76 kPa(abs) [11 psi(abs)] or higher |
TYPICAL MALFUNCTION THRESHOLDS
Difference between intake manifold absolute pressure and atmospheric pressure | Higher than -3 kPa [-0.4 psi] |
CONFIRMATION DRIVING PATTERN
HINT:
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HINT:
Techstream Display | Description |
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NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
CAUTION / NOTICE / HINT
NOTICE:
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(Select Powertrain in Health Check and then check the time stamp data.)
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HINT:
Read Freeze Frame Data using the Techstream. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
1. | CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P01052A) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Trouble Codes.
(e) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
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DTC P01052A is output | A |
DTC P01052A and other DTCs are output | B |
HINT:
If any DTCs other than P01052A are output, troubleshoot those DTCs first.
B | GO TO DTC CHART |
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2. | READ VALUE USING TECHSTREAM (INTAKE MANIFOLD ABSOLUTE PRESSURE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Intake Manifold Absolute Pressure.
Powertrain > Engine > Data List Tester Display |
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Intake Manifold Absolute Pressure |
(e) According to the display on the Techstream, read the Data List.
(f) Put the engine in Inspection Mode (Maintenance Mode).
Powertrain > Hybrid Control > Utility Tester Display |
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Inspection Mode |
(g) Start the engine.
(h) According to the display on the Techstream, read the Data List.
Standard:
Engine Condition | Intake Manifold Absolute Pressure |
---|---|
Power switch on (IG) | 80 to 110 kPa (11.6 to 15.95 psi) |
Idling | 20 to 40 kPa (2.9 to 5.8 psi) |
OK | CHECK FOR INTERMITTENT PROBLEMS |
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3. | CHECK INTAKE SYSTEM |
(a) Check the intake system for vacuum leaks.
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OK:
No leaks from intake system.
HINT:
Perform "Inspection After Repair" after repairing or replacing the intake system.
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OK | REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR |
NG | REPAIR OR REPLACE INTAKE SYSTEM |