DTC P0069

Manifold absolute pressure/atmospheric pressure correlation

DETECTION CONDITION

• PCM monitors differences between intake manifold vacuum and atmospheric pressure. If the difference is below –12 kPa {–90 mmHg, –3.5 inHg} or above 12 kPa {90 mmHg, 3.5 inHg} when the following conditions are met, the PCM determines that there is a MAP sensor performance problem.

MONITORING CONDITION

• 12—15 s from when ignition switch is turned off.

• Intake air temperature is above -10°C {14°F}.

• Engine coolant temperature is above 70°C {158°F}.

Diagnostic support note

• This is a continuous monitor (CCM).

• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.

• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.

• FREEZE FRAME DATA is available.

• The DTC is stored in the PCM memory.

POSSIBLE CAUSE

• MAP sensor malfunction or substandard performance

• BARO sensor malfunction or substandard performance

• PCM malfunction

STEP

INSPECTION

ACTION

1

• Has FREEZE FRAME DATA been recorded?

Yes

Go to the next step.

No

Record the FREEZE FRAME DATA on the repair order, then go to the next step.

2

• Verify related Service Bulletins and/or on-line repair information availability.

• Is any related repair information available?

Yes

Perform repair or diagnosis according to the available repair information.

• If the vehicle is not repaired, go to the next step.

No

Go to the next step.

3

• Turn the ignition switch to off then start the engine.

• Have DTC P0107, P0108, P2228 or P2229 been stored?

Yes

Inspect and repair DTC P0107, P0108, P2228 or P2229.

(SeeDTC TABLE [LF].)

No

Go to the next step.

4

• Is DTC P0069 on the FREEZE FRAME DATA?

Yes

Go to the next step.

No

Go to troubleshooting procedures for the DTC on the FREEZE FRAME DATA.

5

• Inspect MAP sensor.

  (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION [LF].)

• Is the MAP sensor normal?

Yes

Go to the next step.

No

Replace the MAP sensor, then go to step 7.

(See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION [LF].)

6

• Inspect the BARO sensor.

  (See BAROMETRIC PRESSURE (BARO) SENSOR INSPECTION [LF].)

• Is the BARO sensor normal?

Yes

Go to the next step.

No

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [LF].)

7

• Make sure to reconnect all disconnected connectors.

• Turn the ignition switch to the ON position (Engine off).

• Clear the DTC from the memory using the M-MDS.

• Start the engine.

• Is the same DTC present?

Yes

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [LF].)

No

Go to the next step.

8

• Perform the “AFTER REPAIR PROCEDURE”.

  (See AFTER REPAIR PROCEDURE [LF].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [LF].)

No

DTC troubleshooting completed.