DTC P0069-00: Manifold Absolute Pressure - Barometric Pressure Correlation [10/2022 - 11/2023]: Procedure

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTC P0069-00 is output	A
   DTC P0069-00 and other DTCs are output	B

   HINT: 

   If any DTCs other than P0069-00 are output, troubleshoot those DTCs first.

Result: 

B 

GO TO DTC CHART  . Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 11/2023]

Result: 

A 

See step  2

1. Turn the ignition switch off and wait for at least 50 minutes.
2. Using the following table, determine the normal atmospheric pressure for the current altitude and temperature.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   • Standard atmospheric pressure is approximately 101 kPa (abs) [15 psi (abs)].
   • For every 100 m (328 ft.) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.1 psi). This varies depending on the weather.
3. Compare the value of the Data List item Intake Manifold Absolute Pressure with the actual atmospheric pressure.

   Powertrain > Engine > Data List 

   Tester Display
   Intake Manifold Absolute Pressure

   Result

   Result	Proceed to
   Approximately the same as the actual atmospheric pressure	A
   Not approximately the same as the actual atmospheric pressure	B

Result: 

B 

REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR 

Refer to REMOVAL [12/2019 - ]

Result: 

A 

See step  3

1. Using the following table, determine the normal atmospheric pressure for the current altitude and temperature.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   • Standard atmospheric pressure is approximately 101 kPa (abs) [15 psi (abs)].
   • For every 100 m (328 ft.) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.1 psi). This varies depending on the weather.
2. Compare the value of the Data List item Atmospheric Pressure with the actual atmospheric pressure.

   Powertrain > Engine > Data List 

   Tester Display
   Atmospheric Pressure

   Result

   Result	Proceed to
   Approximately the same as the actual atmospheric pressure	A
   Not approximately the same as the actual atmospheric pressure	B

Result: 

A 

CHECK FOR INTERMITTENT PROBLEMS 

Refer to CHECK FOR INTERMITTENT PROBLEMS [12/2019 - ]

Result: 

B 

REPLACE ECM 

Refer to REMOVAL [10/2022 - 11/2023]