B2446, B2447, B2448, B2449
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Airbag warning lamp on.
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B2446, B2447, B2448, B2449
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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
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The resistance measured by the control module is higher than 3.9 Ω for 10 s.
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The resistance measured by the control module is higher than 225 Ω for 160 ms.
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Fault diagnosis will not be carried out if diagnostic trouble code B2447 or B2448 has been generated.
B2447
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Voltage on LHD pin 15/RHD pin 9 in control module is below 1.5 V for 1.25 s.
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B2448
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Voltage on LHD pin 45/RHD pin 8 in control module is greater than 3.5 V for 1.25 s.
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B2449
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The resistance measured by the control module is lower than 1.41 Ω for 20 s.
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Fault diagnosis will not be carried out if diagnostic trouble code B2447 or B2448 has been generated.
