Navigation Audio Unit C2253d

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.

Fig 1: Identifying Navigation Audio Unit C2253D Connector Pinouts

Courtesy of FORD MOTOR CO.

NAVIGATION AUDIO UNIT C2253D CONNECTOR PINOUTS REFERENCE

Pin Number(s)	Circuit Designation/Description	Normal Condition/Measurement
1	8-MD10A (WH/BK) LF speaker output	Less than 5 ohms between the audio unit and the speaker and greater than 10,000 ohms between the audio unit and ground.
2	8-MD17A (WH/RD) RF speaker output	Less than 5 ohms between the audio unit and the speaker and greater than 10,000 ohms between the audio unit and ground.
3	8-MD11A (WH/VT) LR speaker output	Less than 5 ohms between the audio unit and the speaker and greater than 10,000 ohms between the audio unit and ground.
4	8-MD18A (WH) RR speaker output	Less than 5 ohms between the audio unit and the speaker and greater than 10,000 ohms between the audio unit and ground.
7	1-MD19 (WH/RD) subwoofer audio output	Less than 5 ohms between the audio unit and the subwoofer amplifier. Greater than 10,000 ohms between the audio unit and ground.
9	7-MD27 (YE/VT) subwoofer enable/clip detection	Less than 5 ohms between the audio unit and the subwoofer amplifier. Greater than 10,000 ohms between the audio unit and ground.
10	10-MD10A (GY/BK) LF speaker return	Less than 5 ohms between the audio unit and the speaker and greater than 10,000 ohms between the audio unit and ground.
11	10-MD17A(GY/RD) RF speaker return	Less than 5 ohms between the audio unit and the speaker and greater than 10,000 ohms between the audio unit and ground.
12	10-MD11A(GY/WH) LR speaker return	Less than 5 ohms between the audio unit and the speaker and greater than 10,000 ohms between the audio unit and ground.
13	10-MD18A (GY) RR speaker return	Less than 5 ohms between the audio unit and the speaker and greater than 10,000 ohms between the audio unit and ground.
16	2-MD19 (GY/RD) subwoofer audio return	Less than 5 ohms between the audio unit and the subwoofer amplifier. Greater than 10,000 ohms between the audio unit and ground.