DTC Code | DTC Name |
---|---|
P0069 | MAP Sensor Too High or Too Low |
DESCRIPTION
To detect atmospheric pressure, the atmospheric pressure sensor built into the ECM is used in the common rail system. Following the changes in the atmospheric pressure, the ECM corrects the fuel injection volume, timing and duration, and adjusts the common rail internal fuel pressure to optimize combustion.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
---|---|---|---|---|---|
P0069 | MAP Sensor Too High or Too Low | After the ignition switch is turned to ON, the difference between the atmospheric pressure sensor output and manifold absolute pressure sensor output is higher than 8 kPa for 0.5 seconds (2 trip detection logic). |
|
Comes on | DTC stored |
DTC No. | Data List |
---|---|
P0069 |
|
Turn the ignition switch to ON and check the Atmosphere Pressure and MAP items in the Data List. If the atmospheric pressure displayed on the GTS differs greatly from the actual atmospheric pressure (standard: 101 kPa), the sensor (atmospheric pressure sensor or manifold absolute pressure sensor) is malfunctioning.
If DTC P0069 is stored, the following symptoms may appear:
Misfire
Combustion noise
Black smoke
White smoke
Lack of power
CONFIRMATION DRIVING PATTERN
DTC No. | DTC Detection Drive Pattern |
---|---|
P0069 | 1 second elapses after ignition switch turned from off to ON (starter remains off) |
CAUTION / NOTICE / HINT
After replacing the ECM, the new ECM needs registration (Click here) and initialization (Click hereНажмите здесь).
Although the DTC titles say Manifold Absolute Pressure Sensor Too High or Too Low, these DTCs relate to the atmospheric pressure sensor.
Although the DTC titles say Manifold Absolute Pressure Sensor Too High or Too Low, these DTCs relate to the atmospheric pressure sensor.
Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
PROCEDURE
CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0069)
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Read the DTCs.
Powertrain > Engine and ECT > Trouble CodesResult | ||||||
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|
If any DTCs other than P0069 are output, troubleshoot those DTCs first.
B |
GO TO DTC CHART Click here Нажмите здесь |
A |
INSPECT MANIFOLD ABSOLUTE PRESSURE SENSOR
Before inspecting the manifold absolute pressure sensor, perform a wire harness inspection and if there are any problems with the wire harness, repair or replace it.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAP.
Powertrain > Engine and ECT > Data ListTester Display |
---|
MAP |
Read the value.
OK |
---|
Same value as the actual atmospheric pressure. |
Result | |||
---|---|---|---|
|
NG |
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Click hereНажмите здесь |
OK |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTC.
Powertrain > Engine and ECT > Clear DTCsTurn the ignition switch off and wait for 30 seconds or more.
Turn the ignition switch to ON for 1 second.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Confirm that the DTC is not output.
Powertrain > Engine and ECT > Trouble CodesResult | ||
---|---|---|
|
NEXT |
REPLACE ECM Click hereНажмите здесь |