Audio Unit C2253a
WARNING: This page is about a different car, the 2004 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
C2253A CONNECTOR REFERENCE CHART
| Pin Number(s) | Circuit Designation/Description | Normal Condition/Measurement |
|---|---|---|
| 1 | 29-MD15 (OG/BK) keep alive power feed | Greater than 10.5 volts with key ON or OFF. |
| 2 | 10-MD15 (GY/OG) B+ voltage feed in ON/ACC position | Greater than 10.5 volts with the key in ON or ACC. |
| 13 | 31-MD15B (BK/GN) audio unit ground | Less than 5 ohms to ground. |
| 24 | 31-MD15A (BK/GN) audio unit ground | Less than 5 ohms to ground. |