TROUBLE JUDGMENT
The SRS-ECU monitors the passenger's airbag (squibs) voltage. The improper installation of SRS-ECU is detected if the SRS-ECU designed only for the driver's airbag is installed on the vehicle which has passenger's airbag, or if.the SRS-ECU designed for the passenger's airbag is installed on the vehicle which has driver's airbag only.POSSIBLE CAUSES
- Incorrectly installed SRS-ECU
DIAGNOSIS
Replace the SRS-ECU. (Refer to 
.)