Ошибка b1261 ff mazda cx 7

0.14 В при дневном свете

Нормально же. При лампе или прямом солнечном свете будет около 0,4 В. Главное — кз нет.  Главное — провод между  «В» датчика и  «S» разъем климата не должен замыкать на массу.

это же не излучающий датчик

А это :

SS.png

а как работают солнечные батареи ?

Если я правильно понял то датчик должен давать 4Вольта

нет

да как нормально? если написано по твоей же ссылке что при свечении лампой 60Вт должен давать 4В.

с этим согласен? идти лампу тащить в машину и светить?

излучающие это датчики парктроника, мёртвых зон… такого плана. которые потребляют из сети и излучают различные сигналы…

а тут датчик поглащает свет и наводит ЭДС. грубо говоря пассивный. для его работы не нужо напряжение.

наоборот он даёт напряжение и в блоке климата АЦП его преобразует в цифру…

ладно, это всё теория. может есть у кого такой датчик, ещё снять показания с него?

а ты последнюю картинку давал, дай ссылку на эту страницу мануала

Изменено 20 Мая 2016 пользователем igoryok

carlus wrote:
The application Forscan has detected the following error (DTC: B1261-FF), in my Mazda CX7 Diesel 2.2. It seems that the error is due to solar sensor (Solar radiation sensor circuit short to ground).

In the workshop manual, the procedure to try to check the solar sensor says (Forscan says something like):
STEP1: Connect the M-MDS to the DLC-2 connector.
STEP2: Shine a 60 W incandescent light from a distance of approx. 100 mm {3.9 in} directly onto the solar radiation sensor.
Note: If incandescent light is not shone on the solar radiation sensor, the climate control unit determines a malfunction and indicates DTC «B1260, B1261».
STEP 3: After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
When using the IDS (notebook PC)
— Select the «Toolbox» tab.
— Select the «Self Test».
— Select the «Module».
— Select the «EATC».
STEP4: Verify the DTC according to the directions on the screen.
If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.
STEP 5: After completion of repairs, clear all DTCs stored in the Climate control unit.

But for CX7, in Forscan «Test section» there is no option for the EATC module

can develop this test?

In many cases FORScan implements different logic than IDS. If you work with a workshop manual that is designed for MDS, it may cases confusion. The sequence above asks MDS to read DTC (Diagnostic Trouble Codes). So after your perform these 4 steps you will just see the B1261-FF code, that’s all. FORScan reads DTCs automatically on connect, so you don’t need these four steps in case of FORScan. However, as you may see in the DTC description and test sequence in the workshop manual, right diagnostic requires special conditions: some light dropped to the sensor as described above. So you must create this condition before read the DTC. Otherwise, you may get a false DTC code (for example, if you do the test somewhere in the dark — on parking, garage etc).

So, right sequence in your case is (if you use FORScan):

1. Provide necessary conditions (some light to the sensor as described above)
2. Reset DTC code and read it again.

If the B1261-FF disappears, it most likely means the sensor is OK. Otherwise, there may be some problem with the sensor or its wire/connection.

Regarding selftest: not all modules have self tests available. Your Mazda CX7 has no this test for EATC module. When you perform the sequence above, and if selftest is available, MDS performs the self-test and read DTC codes. If self test is not available, MDS just reads DTC codes. In case of CX7 EATC IDS just read DTC codes as mentioned above. In FORScan, DTC reading and self-tests are separated. When you read DTC, self-test is not performed automatically. User has to go to the Tests section and run the self-test manually. But if the test is not available, FORScan will not display it in the list.

carlus wrote:
In relation to the EATC module, there is another test that tests the module in general and not yet implemented for the Mazda CX7, Could you implement it too? The test is as follows:

STEP 1: Connect the M-MDS to the DLC-2 connector.
STEP 2: After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
When using the IDS (notebook PC)
— Select the «Body» tab.
STEP 3: Select the «EATC Operation Check» from the screen menu.
STEP 4: Verify the A/C operation check mode according to the directions on the screen

This test is in fact an actuators test — allows to check blow motor, air floor, display, buttons etc. We will try to implement this in one of next releases, but most likely not in 2.1.19.

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