DTC Detection Logic
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
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DTC |
CONSULT name |
DTC detecting condition |
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B1428 |
BUCKLE SW LH [OPEN] |
13 |
Diagnosis condition |
When ignition switch is ON. |
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Signal (terminal) |
LH seat belt buckle switch. (terminal 29) |
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Threshold |
-- |
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Diagnosis delay time |
-- |
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BUCKLE SW LH [VB-SHORT] |
12 |
Diagnosis condition |
When ignition switch is ON. |
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Signal (terminal) |
LH seat belt buckle switch. (terminal 29) |
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Threshold |
-- |
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Diagnosis delay time |
-- |
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BUCKLE SW LH [GND-SHORT] |
11 |
Diagnosis condition |
When ignition switch is ON. |
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Signal (terminal) |
LH seat belt buckle switch. (terminal 29) |
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Threshold |
-- |
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Diagnosis delay time |
-- |
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BUCKLE SW LH [UNDEFINED] |
00 |
Diagnosis condition |
When ignition switch is ON. |
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Signal (terminal) |
Seat belt buckle switch (terminal 29) |
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Threshold |
-- |
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Diagnosis delay time |
-- |
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POSSIBLE CAUSE
[OPEN]
- Connection malfunction or open circuit of harness and connector
- Internal malfunction of seat belt buckle switch LH
[VB-SHORT]
- Connection malfunction or short circuit to power supply of harness and connector
- Internal malfunction of seat belt buckle switch LH
- Internal malfunction of diagnosis sensor unit
[GND-SHORT]
- Connection malfunction or short circuit to ground of harness and connector
- Internal malfunction of seat belt buckle switch LH
- Internal malfunction of diagnosis sensor unit
[UNDEFINED]
- Connection malfunction or open circuit of harness and connector
- Internal malfunction of seat belt buckle switch LH
- Internal malfunction of diagnosis sensor unit
FAIL-SAFE
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