Navigation 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.
NAVIGATION AUDIO UNIT C2253A CONNECTOR PINOUTS REFERENCE
| Pin Number(s) | Circuit Designation/Description | Normal Condition/Measurement |
|---|---|---|
| 1 | 29-MD15 (OG/BK) B+ battery feed, audio unit memory | Greater than 10 volts between the audio unit and ground. |
| 2 | 10-MD15 (GY/OG) delayed accessory power | Greater than 10 volts between the audio unit and ground with the ignition in the RUN or ACCESSORY position. |
| 13 | 31-MD15B (BK/GN) audio unit ground | Less than 5 ohms between the audio unit and ground. |
| 15 | 50-MD15 (GY/OG) B+ power feed START position only | Greater than 10 volts with ignition in START position. |
| 18 | 8-MD26 (WH/BK) steering wheel audio controls reference signal | Less than 5 ohms between the audio unit and the clockspring. Greater than 10,000 ohms between the audio unit and ground. |
| 19 | 31S-MD26 (BK/RD) steering wheel audio controls reference signal | Less than 5 ohms between the audio unit and the clockspring. Greater than 10,000 ohms between the audio unit and ground. |
| 24 | 31-MD15A (BK/GN) audio unit ground | Less than 5 ohms between the audio unit and ground. |