The occupant classification-ECU sets DTC B2212 when it determines itself to be in abnormal status.
TECHNICAL DESCRIPTION (COMMENT)
occupant classification-ECU determines that the abnormality is present, if the data abnormality is found when the ignition switch is turned ON and then EEPROM is written.
TROUBLESHOOTING HINTS
Malfunction of occupant classification-ECU
DIAGNOSIS
Recheck for diagnostic trouble code.
Check again if the DTC is set in the occupant classification-ECU.
(1)
caution
To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
Connect scan tool MB991958 to the data link connector.
(2) Erase the DTC.
(3) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(4) Check if DTC is set.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Is the DTC set?
Replace the front seat cushion cover and pad assembly.
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).