BCM Module Input Signal Test
BCM MODULE INPUT SIGNAL REFERENCE
| Pin No. | Input signal name | Test condition | Measured value | Ordinary |
|---|---|---|---|---|
| A1 | B+ [For BCM] | Constant | Battery voltage | 10V or more |
| A2 | IGN1 | Ignition switch ON | Battery voltage | 1V or less |
| A3 | Alternator (L) | Engine start condition | Battery voltage | 1V or less |
| A4 | Key warning switch | Key is inserted into the ignition switch | 10V or more | 1V or less |
| A7 | Crash unlock (Air bag) | Crash sensor signal input | 1V or less | 10V or more |
| A8 | Driver door unlock switch | Driver door unlock | 1V or less | 4V or more (Lock) |
| A9 | Assist door unlock switch | Assist door unlock | 1V or less | 4V or more (Lock) |
| A10 | Rear left unlock switch | Rear left unlock | 1V or less | 4V or more (Lock) |
| A11 | Rear right unlock switch | Rear right unlock | 1V or less | 4V or more (Lock) |
| A13 | IGN2 | Ignition switch ON | Battery voltage | 1V or less |
| A14 | Washer switch | Washer switch ON | 10V or more | 1V or less |
| A15 | Intermittent wiper switch | Intermittent wiper switch ON | 10V or more | 1V or less |
| A16 | Code saving | Code saving | 1V or less | 4V or more |
| A20 | Driver door switch | Driver door open | 1V or less | 4V or more |
| A21 | Assist door switch | Driver door open | 1V or less | 4V or more |
| A22 | 4 door open switch | 4 door close | 4V or more | 1V or less |
| A23 | Trunk open switch | Trunk open | 1V or less | 4V or more |
| A24 | Hood switch | Hood open | 1V or less | 4V or more |
| B1 | Driver door key lock switch | Driver door key lock switch ON | 1V or less | 4V or more |
| B2 | Driver door key unlock switch | Driver door key unlock switch ON | 1V or less | 4V or more |
| B3 | Central door key lock switch | Central door key lock switch ON | 1V or less | 4V or more |
| B4 | Tail lamp switch | Tail lamp switch ON | 1V or less | 4V or more |
| B5 | Intermittent wiper volume | - | 0 ~ 2.5V | - |
| B6 | Speed sensor | Ignition switch ON | 0~5V (Pulse) | - |
| B8 | Driver seat belt switch | Fasten (Open), Unfasten (Ground) | 4V or more (Fasten) | 1V or less |
| B9 | Head lamp switch | Head lamp switch ON | 1V or less | 4V or more |
| B10 | Assist door key unlock switch | Assist door key unlock switch ON | 1V or less | 4V or more |
| B11 | Central door key unlock switch | Central door key unlock switch ON | 1V or less | 4V or more |
| B12 | Trunk key unlock switch | Trunk key unlock switch ON | 1V or less | 4V or more |
| B13 | Trunk open switch | Trunk open switch ON | 1V or less | 4V or more |
| B18 | Rear defogger switch | Rear defogger switch ON | 1V or less | 4V or more |
| B19 | - | - | - | - |
| B20 | Front fog lamp switch | Front fog lamp switch ON | 1V or less | 4V or more |