Audio control module (AUM)/External amplifier to loudspeakers, gray connector
NOTE:
The connectors on the adapter cable must have the correct color-coding for the signal chart to match.
Before taking any readings, see Checking the ground terminals .
| Control module terminal | Breakout box terminal | Signal type | Ignition on | Miscellaneous |
|---|---|---|---|---|
| B1 | #1 | Audio channel (+), loudspeaker left front | AC voltage (to pin 2) when sound in the left front loudspeakers | - |
| B2 | #2 | Audio channel (-), loudspeaker left front | AC voltage (to pin 1) when sound in the left front loudspeakers | - |
| B3 | #3 | - | - | - |
| B4 | #4 | - | - | - |
| B5 | #5 | Audio channel (+), loudspeaker right front | Alternating current (to pin 6) when sound in the right front loudspeakers | - |
| B6 | #6 | Audio channel (-), loudspeaker right front | Alternating current (to pin 5) when sound in the right front loudspeakers | - |
| B7 | #7 | Audio channel (+), loudspeaker left rear | Alternating current (to pin 8) when sound in the left rear loudspeakers | - |
| B8 | #8 | Audio channel (-), loudspeaker left rear | Alternating current (to pin 7) when sound in the left rear loudspeakers | - |
| B9 | #9 | - | - | - |
| B10 | #10 | - | - | - |
| B11 | #11 | Audio channel (+), loudspeaker right rear | Alternating current (to pin 12) when sound in the right rear loudspeakers | - |
| B12 | #12 | Audio channel (-), loudspeaker right rear | Alternating current (to pin 11) when sound in the right rear loudspeakers | - |