C1282

Pour mémoire :
Quel bonheur d'avoir la voiture qui chasse d'un coup à 280 sur la droite ... et l'ASR qui devient fou quand j'accélere

Connector End View Reference: ABS Connector End Views

1
Did you perform the ABS Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check - ABS

2
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With a scan tool, observe the Yaw Rate Sensor Input parameter in the VSES data list.
Does the scan tool display that the Yaw Rate Sensor Input parameter is within the specified range?
0.15-4.85 V
Go to Step 6
Go to Step 3

3
Turn OFF the ignition.
Disconnect the yaw rate sensor connector.
Turn ON the ignition, with the engine OFF.
With the scan tool, observe the Yaw Rate Sensor Input parameter.
Does the scan tool display that the Yaw Rate Sensor Input parameter is less than the specified value?
0.15 V
Go to Step 4
Go to Step 10

4
Turn OFF the ignition.
Connect a 3-amp fused jumper wire between the 5-volt reference circuit of the yaw rate sensor and the signal circuit of the yaw rate sensor.
Turn ON the ignition, with the engine OFF.
With the scan tool, observe the Yaw Rate Sensor Input parameter.
Does the scan tool display that the Yaw Rate Sensor Input parameter is greater than the specified value?
4.85 V
Go to Step 5
Go to Step 8

5
Disconnect the fused jumper wire.
Measure the voltage between the 5-volt reference circuit of the yaw rate sensor and the low reference circuit of the yaw rate sensor.
Does the voltage measure within the specified range?
4.85-5.2 V
Go to Step 12
Go to Step 7

6
Does the scan tool display that the Yaw Rate Sensor Input parameter is within the specified range?
2.3-2.7 V
Go to Diagnostic Aids
Go to Step 11

7
Test the 5-volt reference circuit of the yaw rate sensor for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 16
Go to Step 13

8
Test the 5-volt reference circuit of the yaw rate sensor for the following conditions:

An open
A short to ground
A high resistance
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition? --
Go to Step 16
Go to Step 9

9
Test the signal circuit of the yaw rate sensor for the following conditions:

An open
A short to ground
A high resistance
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 16
Go to Step 13

10
Test the signal circuit of the yaw rate sensor for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 16
Go to Step 13

11
Disconnect the EBCM harness connector.
Install the J 39700 universal pinout box using the J 39700-300 cable adapter to the EBCM harness connector only.
Test the low reference circuit of the yaw rate sensor for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition? --
Go to Step 16
Go to Step 12

12
Inspect for poor connections at the harness connector of the yaw rate sensor. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 16
Go to Step 14

13
Inspect for poor connections at the harness connector of the EBCM. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 16
Go to Step 15

14
Replace the yaw rate sensor. Refer to Yaw Rate Sensor Replacement .

Did you complete the repair?
--
Go to Step 16
--

15
Replace the EBCM. Refer to Electronic Brake Control Module (EBCM) Replacement .

Did you complete the repair?
--
Go to Step 16
--

16
Clear the DTCs using the scan tool.
Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?
--
Go to Step 2
System OK

"You may be exceeding it's capabilities. The active handling was not designed for high horsepower cars and thus you could be exceeding the threshold of the sensor.

If it works fine in everyday driving or on some sweeper turns, my bet is that you're exceeding it's working range. "

Subject: Unwanted Active Handling Activation DTC C1282 - keywords ABS active brake EBTCM Stabilitrak #PIC3844 - (01/12/2006)

Models: 1998-2004 Chevrolet Corvette

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Some vehicles may have a concern with intermittent unwanted activation of the Active Handling System. The Yaw Rate sensor signal can usually be verified to be changing at the time this occurs. DTC C1282 will likely be present in the ABS module.

Recommendation/Instructions:
Check the Yaw Rate Sensor for a missing or loose "Pencil type" bracket. This bracket is supplemental to the main bracket of the Instrument Panel Carrier and is intended to provide extra support. Without this bracket, the sensor will "bounce" under certain road conditions causing the concern. If the bracket is missing part number 10409133 will need to be ordered and installed to correct the concern.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed

C'est quand même chiant. Tu n'avais pas ça avec ton P525 et ratio d'origine.

BossV8 a écrit:

C'est quand même chiant. Tu n'avais pas ça avec ton P525 et ratio d'origine.

en fait la ca me le fait a chaque accélération.

Avant c'était aléatoire genre à 200 ou 280 ... faillit me planter mechamment 4 ou 5 fois.

Au mois la c'est franc, c'est à chaque accélération !
Du coup je désactive systematiquement l'ASR !

Ok mais c'est pas top non plus de rouler sans asr. Tu peux pas le ré étalonner ?

Je pense à un truc : j'ai lu quelque part qu'il y a un capteur près du siège passager qui sert à l'asr et qu'il faut faire gaffe de pas le niquer en mettant par exemple des baquets. Tu n'avais pas viré ton siège passager pour gagner du poids ?

BossV8 a écrit:

Ok mais c'est pas top non plus de rouler sans asr. Tu peux pas le ré étalonner ?

Je pense à un truc : j'ai lu quelque part qu'il y a un capteur près du siège passager qui sert à l'asr et qu'il faut faire gaffe de pas le niquer en mettant par exemple des baquets. Tu n'avais pas viré ton siège passager pour gagner du poids ?

oui mais c'est pas ca !

tu a un sensor pour cela il est pas HS

dbexoticcar a écrit:

tu a un sensor pour cela il est pas HS

c'est le sensor en dessous de l'autoradio.
Vu que c'est là ou j'ai mis mon wideband il a peut etre bougé !!!

la broche du module est deconnecte

dbexoticcar a écrit:

la broche du module est deconnecte

Non sinon j aurais le message en permanence.
Faut que je demonte que et que je regarde

elle doit pas faire contact de temps en temps