Cruise Control Switch: Testing and Inspection

Disconnect connector at the amplifier assembly and perform the following checks:
1. Connect a voltmeter between the light blue-black hash 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 and 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.