SAAB WIS ONLINE

DTC P1518 STARTER SWITCH CIRCUIT LOW INPUT

DTC P1518 STARTER SWITCH CIRCUIT LOW INPUT

OUTLINE OF DIAGNOSIS

Detect the open or short circuit of starter SW.

Judge OFF NG when it turns to “after engine starting” while the starter has never been set to ON.

ENABLE CONDITION

Secondary Parameters Enable Conditions
None



GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

DIAGNOSTIC METHOD

Abnormality Judgment

Judge OFF NG when the malfunction criteria below are completed.

Judgment Value

Malfunction Criteria Threshold Value
Vehicle speed

< 1 km/h (0.62 MPH)

Starter ON signal

Not detected

Engine speed after the engine speed of less than 500 rpm continues 0.8 seconds or more

≥ 500 rpm



Time Needed for Diagnosis: 1 second

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

Normality Judgment

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

Judgment Value

Malfunction Criteria Threshold Value
Starter ON

Experienced

Battery voltage

> 8 V



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

None

ECM OPERATION AT DTC SETTING

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