P0107, P0108

DTC Code	DTC Name
P0107	Manifold Absolute Pressure / Barometric Pressure Circuit Low Input
P0108	Manifold Absolute Pressure / Barometric Pressure Circuit High Input

DESCRIPTION

The manifold absolute pressure sensor detects the intake manifold pressure as a change in voltage. The ECM calculates the intake manifold pressure based on this voltage. The ECM calculates the purge VSV opening amount according to changes in the intake manifold pressure and also detects errors in the manifold absolute pressure sensor using these changes in pressure.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P0107	Manifold Absolute Pressure / Barometric Pressure Circuit Low Input	The output voltage from the manifold absolute pressure sensor is less than 0.5 V for 0.5 seconds (1 trip detection logic).	Open or short in manifold absolute pressure sensor circuit Manifold absolute pressure sensor ECM	Comes on	DTC stored
P0108	Manifold Absolute Pressure / Barometric Pressure Circuit High Input	The output voltage from the manifold absolute pressure sensor is higher than 4.5 V for 0.5 seconds (1 trip detection logic).	Open or short in manifold absolute pressure sensor circuit Manifold absolute pressure sensor ECM	Comes on	DTC stored

Tech Tips

When any of these DTCs are output, check the manifold absolute pressure using the GTS. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / MAP.

Pressure Displayed	Malfunction
Approximately 0 kPa(abs) [0 mmHg(abs)]	Short in PIM circuit to ground Short in PIM circuit to E2 circuit Open in VC circuit
130 kPa(abs) [975 mmHg(abs)] or higher	Short in VC circuit to PIM circuit Open in PIM circuit Open in E2 circuit

MONITOR DESCRIPTION

The ECM monitors the manifold absolute pressure sensor voltage and uses this value to calculate the intake manifold pressure. When the sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction in the manifold absolute pressure sensor and stores a DTC.

Example:

When the sensor output voltage is less than 0.5 V, or higher than 4.5 V for 0.5 seconds, the ECM stores a DTC.

MONITOR STRATEGY

Frequency of Operation

Continuous

CONFIRMATION DRIVING PATTERN

Turn the power switch on (IG) and wait 5 seconds or more.

WIRING DIAGRAM


*a	Manifold Absolute Pressure Sensor

CAUTION / NOTICE / HINT

Tech Tips

Read freeze frame data using the GTS. 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

READ VALUE USING GTS (MAP)

Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / MAP.

Powertrain > Engine and ECT > Data List

Tester Display

MAP

Tester Display
MAP

Read the MAP value.

OK
Same value as the actual atmospheric pressure.

Tech Tips

Standard atmospheric pressure is 101 kPa(abs) [758 mmHg(abs)]. For every 100 m (328 ft.) increase in altitude, atmospheric pressure drops by approximately 1 kPa (7.5 mmHg). The pressure also varies due to the weather (high atmospheric pressure, low atmospheric pressure).
Check "Atmosphere Pressure" in the Data List.

Result

Proceed to
OK
NG

OK

CHECK FOR INTERMITTENT PROBLEMS Click here

NG

CHECK TERMINAL VOLTAGE (MANIFOLD ABSOLUTE PRESSURE SENSOR)

*a
Front view of wire harness connector

(to Manifold Absolute Pressure Sensor)

Disconnect the manifold absolute pressure sensor connector.
Turn the power switch on (IG).

Measure the voltage according to the value(s) in the table below.

Standard Voltage

Tester Connection	Condition	Specified Condition
C15-3 (VC) - C15-1 (E2)	Power switch on (IG)	4.75 to 5.25 V
C15-2 (PIM) - C15-1 (E2)	Power switch on (IG)	3.0 to 5.0 V

Result

Proceed to
OK
NG

NG

CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM) Click here

OK

REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

Replace the manifold absolute pressure sensor.

Click here

Result

Proceed to
NEXT

CHECK WHETHER DTC OUTPUT RECURS (P0107 OR P0108)

Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Clear the DTC.

Click here

Powertrain > Engine and ECT > Clear DTCs
Turn the power switch off and wait for at least 30 seconds.
Turn the power switch on (IG).
Turn the GTS on.
Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

Read the DTCs.

Powertrain > Engine and ECT > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTC P0107 or P0108 is output	B

A

END

B

REPLACE ECM Click here

CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)

Disconnect the manifold absolute pressure sensor connector.
Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
C15-3 (VC) - C48-78 (VCPM)	Always	Below 1 Ω
C15-1 (E2) - C48-80 (EPIM)	Always	Below 1 Ω
C15-2 (PIM) - C48-79 (PIM)	Always	Below 1 Ω
C15-3 (VC) or C48-78 (VCPM) - Body ground	Always	10 kΩ or higher
C15-2 (PIM) or C48-79 (PIM) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

OK

REPLACE ECM Click here

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

SFI SYSTEM(w/o EGR System), Diagnostic DTC:P0107, P0108