Keypad Unit /CARPHONE Control Module (PHM) (For Hands-Free Loudspeaker And Handset)
Before measuring, read, see CONNECTING THE BREAKOUT BOX AND CHECKING THE GROUND TERMINAL .
| Control module terminal | Breakout box terminal | Signal type | Ignition on | Other |
|---|---|---|---|---|
| A1 | #1 | Signal, handset microphone | Alternating current when there is sound to the handset microphone | - |
| A2 | #2 | Handset signal ground | Ulow | - |
| A3 | #3 | Power supply to the handset | Ubat | - |
| A4 | #4 | Signal, handset on cradle | 8 V | - |
| A5 | #5 | - | - | - |
| A6 | #6 | 30 supply | Ubat | - |
| A7 | #7 | - | - | - |
| A8 | #8 | Ground | Ulow | - |
| A9 | #9 | - | - | - |
| A10 | #10 | CANL | Digital signal | - |
| A11 | #11 | Signal, handset loudspeaker | Alternating current when there is sound from the handset loudspeaker | - |
| A12 | #12 | Signal (+), hands-free | Alternating current (to #13) when there is sound from the head restraint loudspeaker | - |
| A13 | #13 | Signal (-), hands-free | Alternating current (to #12) when there is sound from the head restraint loudspeaker | - |
| A14 | #14 | - | - | - |
| A15 | #15 | - | - | - |
| A16 | #16 | - | - | - |
| A17 | #17 | - | - | - |
| A18 | #18 | - | - | - |
| A19 | #19 | - | - | - |
| A20 | #20 | - | - | - |
| A21 | #21 | - | - | - |
| A22 | #22 | CANH | Digital signal | - |