gf3022p0002d

Idle speed control (ISC) function

Tyyppi gf · aihe 30.22 · versio 0104 · 2007-03-20

Koskee: ENGINE 104.941 up to 31.7.96 except CODE (491) as of Model Year 97 USA version except CODE (498) as of Model Year 97 Japanese version ENGINE 104.942 /945 /992 ENGINE 104.943 /944 /991 /994 up to 31.7.96 ENGINE 104.995 except CODE (491) as of Model Year 97 USA version ENGINE 111.921 /942 up to 31.8.98 ENGINE 111.945 up to 31.8.98 in MODEL 202.020 /080 ENGINE 111.945 up to 31.5.98 in MODEL 208.335 ENGINE 111.946 up to 31.5.98 ENGINE 111.960 /961 /970 /977 ENGINE 111.944 /975 up to 31.7.96 ENGINE

Ei saatavilla kielellä ”fi”; näytetään kielellä Englanti.

Sijainti

Toimintoryhmä 1 Moottori › 30 Moottorin kaasuvivusto, vakionopeussäädin › 30.22 Tyhjäkäyntikierrosluvun säätö (LLR) — Mallisarja 202 (mallit 020, 080) · Mallisarja 208 (mallit 335)

Koskee myös moottoreita/vaihteistoja: 104 941, 104 942, 104 943, 104 944, 104 945, 104 991, 104 992, 104 994, 104 995, 111 921, 111 942, 111 944, 111 945, 111 946, 111 960, 111 961, 111 970, 111 974, 111 975, 111 977

GF30.22-P-0002D

Idle speed control (ISC) function

10.6.96

ENGINE 104.941 up to 31.7.96
except CODE (491) as of Model Year 97 USA version
except CODE (498) as of Model Year 97 Japanese version

ENGINE 104.942 /945 /992

ENGINE 104.943 /944 /991 /994 up to 31.7.96

ENGINE 104.995 except CODE (491) as of Model Year 97 USA version

ENGINE 111.921 /942 up to 31.8.98

ENGINE 111.945 up to 31.8.98 in MODEL 202.020 /080

ENGINE 111.945 up to 31.5.98 in MODEL 208.335

ENGINE 111.946 up to 31.5.98

ENGINE 111.960 /961 /970 /977

ENGINE 111.944 /975 up to 31.7.96

ENGINE 111.974


except CODE (491) as of Model Year 97 USA version
except CODE (498) as of Model Year 97 Japanese version

15.03.07

The document has been updated to this date

and will no longer be subject to revision.

Idle speed control (ISC) function

P30.22-0213-06

B11/3 Coolant temperature sensor

L5 Crankshaft position sensor

M16/6 Idle speed control actuator

N3/4 Hot film engine management
(HFM-SFI) control module

N15/1 Transmission control module (TCM) (5-speed automatic)

N15/3 ETC control module

N22 Automatic air conditioning (Automatic A/C) pushbutton control module

R33 CO potentiometer (automatic engine map adjustment ) (only without TWC)

S16/4 Starter lockout and reverse lamp switch/selector lever position recognition

S40/3 Clutch pedal switch (idle speed control)

Function

The idle speed control actuator (M16/6) controls idle speed by altering the position of the throttle valve. The actuator is operated by the HFM-SFI control module (N3/4).

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Clutch operation

When the clutch is operated, the contacts in the idle speed control clutch pedal switch (S40/2) are closed. When driving, the HFM-SFI control module (N3/4) activates a defined idle speed map when the clutch pedal siwtch is operated.

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Heating-up speed

Engine speed is increased to about 1150 rpm for about 20 seconds after each engine start at coolant temperatures <20 °C if selector lever is in position P/N in order to warm up the catalytic converter more rapidly to its operating temperature. When a Drive position is engaged, engine speed is immediately governed to a lower figure.

Engines with automatic transmission

When a Drive position is engaged, a lower speed is governed in order to reduce the tendency of the vehicle to creep. The information "Drive position engaged/not engaged" is supplied to the HFM-SFI control module (N3/4) by the starter lockout and reverse lamp switch (S16/1).

Automatic transmission (NAG)

When a Drive position is engaged, a lower speed is governed in order to reduce the tendency of the vehicle to creep. The information "Drive position engaged/not engaged" is transmitted to the engine control module by the ETC control module (N15/3) through the CAN data bus.

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Engines with A/C compressor

To avoid idle speed dropping when the A/C compressor cuts in, the automatic A/C pushbutton control module (N22) supplies a signal to the HFM-SFI control module (N3/4) before the A/C compressor cuts in and the throttle valve opening cross section is enlarged.

Idle speed

Ignition angle may be retarded or advanced by up to 8° CA from the computed specified value in order to assist the idle speed control.

Controlling idle speed by altering the ignition angle produces a more rapid reaction than altering the position of the throttle valve (idle speed control).

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Fuel supply (HFM-SFI) function

GF07.51-P-3004D

Ignition sytem (HFM-SFI) function

GF07.51-P-3001D

Control module (HFM-SFI) position/task/design/function

GF07.51-P-4103D

Crankshaft position sensor position/task/design/function

GF07.04-P-4116G

Intake air temperature sensor position/task/design/function

GF07.04-P-2100F

Coolant temperature sensor position/task/design/function

(B11/3)

GF07.04-P-5026GA

(B11/4)

GF07.04-P-5026G

Idle speed control (ISC) actuator position/task/design/function

GF30.22-P-4100D

CO potentiometer position/task/design/function

GF07.51-P-4106D

Clutch pedal switch (S40/3) position/task/function

GF29.10-P-2100F

Limiting maximum engine speed function

GF07.51-P-3013D

TWC heating-up (HFM-SFI) function

GF07.51-P-3007D

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