SAAB WIS ONLINE

DTC P2004 INTAKE MANIFOLD RUNNER CONTROL STUCK OPEN (BANK 1)

DTC P2004 INTAKE MANIFOLD RUNNER CONTROL STUCK OPEN (BANK 1)

OUTLINE OF DIAGNOSIS

Detect the malfunction of tumble generated valve motor function.

Judge open fixing malfunction when the opening degree is large even after finishing the tumble generated valve open driving.

ENABLE CONDITION

Secondary Parameters Enable Conditions
Battery voltage

≥ 10.9 V

Engine coolant temperature

≥ 0°C (32°F)



GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

DIAGNOSTIC METHOD

Abnormality Judgment

Judge NG when the continuous time of completing the malfunction criteria below becomes more than 3 seconds.

Judgment Value

Malfunction Criteria Threshold Value
Tumble generated valve angle

≥ 67.4°

Tumble generated valve “close” signal output

1.4 seconds or more



Time Needed for Diagnosis: 3 seconds

Malfunction Indicator Light Illumination: Illuminates as soon as malfunction occurs.

Normality Judgment

Judge OK and clear the NG when the malfunction criteria below are completed.

Judgment Value

Malfunction Criteria Threshold Value
Tumble generated valve angle

< 67.4°

Tumble generated valve “close” signal output

1.4 seconds or more



DTC CLEAR CONDITION


• When the OK idling cycle was completed 40 times in a row

• When “Clear Memory” was performed


MALFUNCTION INDICATOR LIGHT CLEAR CONDITION


• When the OK driving cycle was completed 3 times in a row

• When “Clear Memory” was performed


FAIL SAFE

Tumble generated valve opening


• For tumble generated valve all closing points learning, not allowed to update to the closing side.

• For tumble generated valve all opening points learning, not allowed to update to the opening side.


Tumble generated valve control


• Output the open signal.


ECM OPERATION AT DTC SETTING

Memorize the freeze frame data. (For test mode $02)