Audio Unit C2253c

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 Audio Unit C2253C Connector Terminals

Courtesy of FORD MOTOR CO.

C2253C CONNECTOR REFERENCE CHART

Pin Number(s)	Circuit Designation/Description	Normal Condition/Measurement
1	10-GK24 (GY/RD) video circuit RED	Less than 5 ohms between the navigation system module and the audio unit with the navigation system module disconnected. Greater than 10,000 ohms between the audio unit and ground with the navigation system module disconnected.
2	10-GK25 (GY/OG) video circuit GREEN	Less than 5 ohms between the navigation system module and the audio unit with the navigation system module disconnected. Greater than 10,000 ohms between the audio unit and ground with the navigation system module disconnected.
3	9-GK35 (BN) video return	Less than 5 ohms between the navigation system module and the audio unit with the navigation system module disconnected. Greater than 10,000 ohms between the audio unit and ground with the navigation system module disconnected.
5	1-GK18 (WH/BU) navigation system voice (+)	Less than 5 ohms between the navigation system module and the audio unit with the navigation system module disconnected. Greater than 10,000 ohms between the audio unit and ground with the navigation system module disconnected.
7	4-GK8 (GY/BK) controller area network (CAN) (+) communication	Less than 5 ohms between the navigation system module and the audio unit with the navigation system module disconnected. Greater than 10,000 ohms between the audio unit and ground with the navigation system module disconnected.
8	10-GK26 (GY/VT) video circuit BLUE	Less than 5 ohms between the navigation system module and the audio unit with the navigation system module disconnected. Greater than 10,000 ohms between the audio unit and ground with the navigation system module disconnected.
9	8-GK35 (WH) video synchronization circuit	Less than 5 ohms between the navigation system module and the audio unit with the navigation system module disconnected. Greater than 10,000 ohms between the audio unit and ground with the navigation system module disconnected.
12	2-GK18(GY/VT) navigation system voice (-)	Less than 5 ohms between the navigation system module and the audio unit with the navigation system module disconnected. Greater than 10,000 ohms between the audio unit and ground with the navigation system module disconnected.
14	5-GK8 (BU/YE) controller area network (CAN) (-) communication	Less than 5 ohms between the navigation system module and the audio unit with the navigation system module disconnected. Greater than 10,000 ohms between the audio unit and ground with the navigation system module disconnected.