P106A

2AZ-FXE ENGINE CONTROL: SFI SYSTEM: P106A: Evaporative Emission System Pressure Sensor - Manifold Absolute Pressure Correlation
P106A - Evaporative Emission System Pressure Sensor - Manifold Absolute Pressure Correlation

DESCRIPTION





HINT
*: Data List Name

MONITOR DESCRIPTION

This DTC is designed to detect a deviation in the output characteristics of a pressure sensor.

The pressure of the canister pressure sensor and manifold absolute pressure sensor is monitored 55 minutes after the power switch is turned off. If there is a difference in the pressures, the MIL is illuminated (2 trip detection logic).

HINT
Correct judgment may not be possible when the altitude is 13124 ft. (4000 m) or more.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





CONFIRMATION DRIVING PATTERN





- Connect the Techstream to the DLC3.

- Turn the power switch on (IG) and turn the Techstream on.

- Clear the DTCs DTC Check / Clear [A].

- Turn the power switch off and wait for at least 30 seconds.

- Put the engine in inspection mode Component Tests and General Diagnostics.

- Start the engine and idle it for 10 seconds [B].

- Leave the power switch off for 55 minutes [C].

- Turn the power switch on (IG) and turn the Techstream on.

- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

- Read the pending DTC [D].

HINT
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

- Input the DTC: P106A.

- Check the DTC judgment result.





HINT
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [D].
INSPECTION PROCEDURE

HINT
Read freeze frame data using the Techstream. The hybrid vehicle control ECU records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

PROCEDURE

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P106A)

(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 and ECT / Trouble Codes.

(e) Read the DTCs.

Result:





HINT
If any DTCs other than P106A are output, troubleshoot those DTCs first.

B -- GO TO DTC CHART SFI System
A -- Continue to next step.

2. READ VALUE USING TECHSTREAM (VAPOR PRESSURE PUMP AND MAP)

(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 and ECT / Data List / Vapor Pressure Pump and MAP.

(e) Compare the Vapor Pressure Pump and MAP data from the Data List with day's atmospheric pressure*.

HINT
- *: Standard atmospheric pressure is 101 kPa-a (760 mmHg-a) at sea level. The atmospheric pressure decreases by approximately 1 kPa-g (7.5 mmHg-g) for every 100 m of elevation increase. Atmospheric pressure is also affected by weather conditions. The Atmosphere pressure listed in the Data List cannot be used as a reference for this check.
- If you do not know the atmospheric pressure, refer to the Vapor Pressure Pump value of other vehicles in the workshop and check the difference in pressure.

Result:





B -- REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR
A -- Continue to next step.

3. REPLACE CANISTER

(a) Replace the canister Removal.

NEXT -- CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

4. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

(a) Replace the manifold absolute pressure sensor Removal.

NEXT -- Continue to next step.

5. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG) and the Techstream on.

(c) Enter the following menus: Powertrain / Engine and ECT / Data List / MAP and Vapor Pressure Pump.

(d) Confirm that the difference between Vapor Pressure Pump and MAP is 3.5 kPa-g (26.25 mmHg-g) or less.

NEXT -- END