service wehicle soon ???

[cabriolet c5-98]

no niin.....coodi=c1281 = steering sensor uncorrellated malfunction ,tämä viittais siihen ratin ohjaus akselin asento sensoriin sisäpuolella rintapellissä .kun kysyin mitä se tehtäviin kuuluu??vastaus että jos toinen etupyörä on osunut vaikka kivetykseen eikä pyörät enään näytä suoraan eteen päin ,ilmoittaa sensori ratin olevan vinossa,voisko olla muka niin erikoinen sarvis että kertois milloin auraus kulmat perseestä???voi jos joku tietäs onko sensori rikki vai kulmat päin v_ttU_.... kyllä on metka laite!

[cabriolet c5-98]

ei taida olla helppo vika,oisko jenkki foorumilla tietoa??? metro ei ainaskaan tiennyt,käskivät soittaa tekniseen palveluun. Soittaaks ne korjaamostakin ensin tekniseen palvelunumeroon ennen kuin ne tietää korjata tälläiseen vian.ps taidankin perustaa corvette korjaamon kun noi viat saa selville palvelupuhelimella,puhelun hinnan voi veloittaa asiakkaalta 10 kertaisena....pisnes on pisnes

[Pekka Berkeles]

Originally Posted by cabriolet c5-98

ei taida olla helppo vika,oisko jenkki foorumilla tietoa??? metro ei ainaskaan tiennyt,käskivät soittaa tekniseen palveluun. Soittaaks ne korjaamostakin ensin tekniseen palvelunumeroon ennen kuin ne tietää korjata tälläiseen vian.ps taidankin perustaa corvette korjaamon kun noi viat saa selville palvelupuhelimella,puhelun hinnan voi veloittaa asiakkaalta 10 kertaisena....pisnes on pisnes

Lueskelin äsken vähän noita jenkkifoorumeita. Tällaista tuli vastaan nyt ensiksi:

Under the dash on the bottom of the streering wheel column (near the fire wall) is the Steering wheel position sensor. It's the blue and white plastic ring at the bottom of the shaft.

It should have a small connector on it. If it is disconnected it will set the code. Check that it's plugged in and the wires are OK.

Elikkä olet jo varmaan tsekannu, että kojetaulun alla rattiputken vieressä olevaan anturiin piuha on kunnolla paikallaan? (sininen ja valkoinen muovinen rengas rattiputken alaosassa).

Toinen juttu jota foorumulla ehdottelivat oli vanha akku. Tähän liittyen muuten jos C5:een tulee epämääräisiä sähkövikoja enemmänkin, niin "maadoituspisteet" kannattaisi tarkistella/kiristellä. Jossain jenkkifoorumilla oli näistä pisteistä oikein kuvakin. Voi löytyä niistä mun aiemmin lähettämistä FAQ-linkeistä.

Lopuksi tuli tällainen selostus vastaan. Ei oikein auennut, että mitä kaikkea tuossa piti tehdä:

Circuit Description
The Vehicle Stability Enhancement System (VSES) is activated by the EBCM calculating the desired yaw rate and comparing it to the actual yaw rate input. The desired yaw rate is calculated from measured steering wheel position, vehicle speed, and lateral acceleration. The difference between the desired yaw rate and actual yaw rate is the yaw rate error, which is a measurement of oversteer or understeer. If the yaw rate error becomes too large, the EBCM will attempt to correct the vehicle's yaw motion by applying differential braking to the left or right front wheel.

The amount of differential braking applied to the left or right front wheel is based on both the yaw rate error and side slip rate error. The side slip rate error is a function of the lateral acceleration minus the product of the yaw rate and vehicle speed. The yaw rate error and side slip rate error are combined to produce the total delta velocity error. When the delta velocity error becomes too large and the VSES system
activates, the driver's steering inputs combined with the differential braking will attempt to bring the delta velocity error toward zero. The VSES activations generally occur during aggressive driving, in the turns or bumpy roads without much use of the accelerator pedal. When braking during VSES activation, the brake pedal will feel different than the ABS pedal pulsation. The brake pedal pulsates at a higher
frequency during VSES activation.

The usable output voltage range for the lateral accelerometer and yaw rate sensors is 0.25 - 4.75 volts. The scan tool will report zero lateral acceleration or yaw rate as 2.5 volts with no sensor bias present. The sensor bias compensates for sensor mounting alignment errors, electronic signal errors, temperature changes, and manufacturing differences.
The steering wheel position sensor supplies 2 analog inputs, Phase A and Phase B, to the EBCM. The 2 input signals are approximately 90 degrees out of phase. By interpreting the relationship between the 2 inputs, the EBCM can determine the position of the steering wheel and the direction of steering wheel rotation.

Steer angle centering is the process by which the EBCM calibrates the steering sensor output so that the output reads zero when the steering wheel is centered. Using the yaw rate input, lateral accelerometer input, and wheel speed sensor inputs, the initial steering center position is
calculated after driving greater than 10 km/h (6 mph) for more than 10 seconds in a straight line on a level surface.

Conditions for Running the DTC
The ignition is ON.

Conditions for Setting the DTC

C1287

One of the following conditions exists:
- The steering wheel position sensor is synchronized and the steer rate (speed that the steering wheel appears to be turning) is greater than 1100
degrees/second.
- The steer rate is less than 80 degrees/second and the difference in the phase angle between Phase A and Phase B is greater than 20
Degrees
- The 2 steering sensor signals (Phase A and Phase B) do not agree for 1 second. Under this condition, this DTC will set along with DTC C1281.

C1288

One of the following conditions exists:
- Both Phase A and Phase B are greater than 4.9 volts for 1.6 seconds.
- Both Phase A and Phase B are less than 0.2 volts for 1.6 seconds.
- The difference in the changes in Phase A and Phase B is greater than 35.2 degrees for 9.76 milliseconds.

Action Taken When the DTC Sets
- The EBCM disables the VSES for the duration of the ignition cycle.
- The Traction Control and Active Handling indicator turns ON.
- The DIC displays the Service Active Handling message.
- The ABS/TCS remains functional.
Conditions for Clearing the DTC
- The condition for the DTC is no longer present (the DTC is not current) and you used the scan tool Clear DTC function.
- The condition for the DTC is no longer present (the DTC is not current) and you used the On-Board Diagnostics Clear DTC function.
- The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids

- The scan tool may display 2 additional characters after the DTC. Take note of the 2 character code and any other DTCs that are set. The 2 character code is an engineering aid used in order to determine the specific criteria which caused the DTC to set.
- During diagnosis, park the vehicle on a level surface.
- Check the vehicle for proper alignment. The car should not pull in either direction while driving straight on a level surface.
- Find out from the driver under what conditions the DTC was set (when the DIG displayed the Service Active Handling message). This information will help to duplicate the failure.
- The Snapshot function on the scan tool can help find an intermittent DTC.

Test Description

The numbers below refer to the step numbers on the diagnostic table.
2. Perform the Steering Position Sensor Test in order to verify if the Steering Wheel Position Sensor (SWPS) is operating properly.
3. Tests for the proper operation of the steering wheel position signal A circuit in the low voltage range.
4. Tests for the proper operation of the steering wheel position signal B circuit in the low voltage range.
5. Tests for the proper operation of the steering wheel position signal A circuit in the high voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to ground.
6. Tests for the proper operation of the steering wheel position signal B circuit in the high voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to ground.
7. Tests for a short to voltage in the 5 volt reference circuit.
8. Tests for a high resistance or an open in the low reference circuit.

[cabriolet c5-98]

kiitti tiedoista!Tampereen suunnasta lielahdesta sain suuntaa antavia opastuksia,tuntui olevan alan miehiä .ilmeisesti tuota vikaa voisi ettiä virtamittarin kanssa MUTTA ei onnistu multa. alankin suomentamaan tuota textiä jos vaikka selviäis jotain

[Nybörjare]

Lueskelin tuossa vikakoodit ja esiin tuli tuo C1288 eli vika liittyy ohjauspyörän asentoanturiin, mikäli vikaa ei korjaannu noita liitoksia ropeloimalla ja anturi menee vaihtoon, niin mistä olette kyseistä anturia hankkineet?

http://www.gmpartsdirect.com/catalog/frameset.cfm
Tuolla ovat sensorista vailla 208 usd, liekö muita esim. kotimaisia vaihtoehtoja?
ja rockautossa http://www.rockauto.com/catalog/rafr...partnum=604106
335,79 usd

aikamoista, onkohan täällä satakunnassa harrastajia joilta tuon vian selvittäminen/korjaaminen kävisi kätevästi?