Fault Symptom

B2446 Passenger Belt Tensioner. Open Circuit
B2447 Passenger Belt Tensioner. Short to Ground
B2448 Passenger Belt Tensioner. Short to B+
B2449 Passenger Belt Tensioner. Resistance too Low






Fault symptoms
Airbag warning lamp ON.

Conditions
The following conditions are applicable to the respective diagnostic trouble codes:

B2446
- The resistance measured by the control module is greater than 3.9 ohms for 10 seconds
- The resistance measured by the control module is greater than 225 ohms for 160 ms

Diagnosis is not performed if DTC B2447 or B2448 has been generated.

B2447
- The voltage applied to control module pin 15 is lower than 1.5 V for 1.25 seconds

B2448
- The voltage applied to control module pin 45 is higher than 3.5 V for 1.25 seconds

B2449
- The resistance measured by the control module is lower than 1.4 ohms for 20 seconds

Diagnosis is not performed if DTC B2447 or B2448 has been generated.