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Toyota Corolla Repair Manual: Circuit description

The airbag sensor assy center consists of a airbag sensor assy center, safing sensor, drive circuit, diagnosis circuit and ignition control, etc.

It receives signals from the airbag sensor, judges whether or not the srs must be activated, and detects diagnosis system malfunction.

Dtc b1100/31 is recorded when occurrence of a malfunction in the airbag sensor assy center is detected.

Inspection procedure

Inspection procedure

Hint

: when a malfunction code other than code b1100/31 is displayed at the same time, first repair the malfunction indicated by the malfunction code other than code b1100/31.

Airbag sensor assy malfunction
Dtc b1100/31 airbag sensor assy malfunction ...

Inspection procedure
1 Check voltage at ig2 of airbag sensor assy center Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connector of the air ...

Other materials:

Circuit description
Refer to dtc p0115 Dtc no. Dtc detection condition Trouble area P0125 If the engine coolant temperature (ect) was less than 6.6 C (20 F) when starting the engine, and 20 minutes after the engine start, the ect sensor still indicates below 20 C (68 F) ...

Evap monitor (vacuum pressure monitor) (continued)
Preconditions The monitor will not run unless: mil is off. Fuel level is approximately 1/2 to 3/4. Altitude is 7800 feet (2400 m) or less.* Engine coolant temperature (ect) is between 40f and 95f (4.4 C and 35 C). Intake air temperature (iat) is between 40f and 95 f (4 ...

Have the malfunction repaired immediately. (vehicles with a smart key system)
After taking the specified steps to correct the suspected problem, check that the warning message and light go off. ■Warning buzzer ...

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