Thunderbird V8-302 5.0L HO (1992)
Cruise Control Switch: Testing and Inspection
Disconnect connector at the amplifier assembly, refer to SCHEMATIC DIAGRAMS/ELECTRICAL AND ELECTRONIC DIAGRAMS.
Perform the following checks:
1.
Connect a voltmeter, part No. 014-00407 or equivalent between the light blue-black lead and ground. Depress the On button and check for battery
voltage.
2.
Turn ignition Off and connect an ohmmeter between the light blue-black hash lead and ground.
3.
Rotate steering wheel throughout its full range while making the following checks:
a.
Depress Off button and check for a reading between 0 and 1 ohm.
b.
Depress Set button and check for a reading between 714 and 646 ohms.
c.
Depress Coast button and check for a reading between 126 and 114 ohms.
d.
On models which incorporate Resume, depress Resume button, check for a reading between 2310 and 2090 ohms.
4.
If resistance values are within specification but needle fluctuates, remove steering wheel and clean the brushes. Apply a light coat of lubricant
ESA-M1C189A or equivalent to the slip rings. If resistance values are above the allowable limits, check the switches and ground circuit.
5.
Reconnect the connector at the amplifier.
