LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2000 >> Contour SVT >> Repair and Diagnosis >> External Pages >> Different car >> Section 432 (Entertainment System) >> Diagnosis And Testing >> Entertainment System >> Symptom Chart >> Connector Circuit Reference >> Audio Unit C290a
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Audio Unit C290a

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 C290A Connector Pinouts
G03202613Courtesy of FORD MOTOR CO.
AUDIO UNIT C290A CONNECTOR PINOUTS REFERENCE

Pin Number(s) Circuit Designation/Description Normal Condition/Measurement
1 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.
2 2-MD19 (GY/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.
4 7-MD19 (YE/RD) 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.
5 1-MD12 (WH) center imaging audio output Less than 5 ohms between the audio unit and the center imaging amplifier. Greater than 10,000 ohms between the audio unit and ground.
6 2-MD12 (GY) center imaging audio output Less than 5 ohms between the audio unit and the center imaging amplifier. Greater than 10,000 ohms between the audio unit and ground.
8 7-MD12 (YE) center imaging amplifier enable/clip detection Less than 5 ohms between the audio unit and the center imaging amplifier. Greater than 10,000 ohms between the audio unit and ground.