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Home >> Mercury >> 1994 >> Topaz L4-140 2.3L HSC >> Repair and Diagnosis >> Cruise Control >> Testing and Inspection >> Component Tests and General Diagnostics >> Component Tests >> Servo Assembly Test
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Servo Assembly Test

1. Disconnect eight pin connector from amplifier.
2. Connect ohmmeter between orange/yellow (circuit 144) and gray/black (circuit 145) leads at eight pin connector. Resistance should measure 40-75 ohms.
3. Connect ohmmeter between orange/yellow (circuit 144) and white/pink (circuit 146) leads at connector. Resistance should measure 100-150 ohms.
4. Connect ohmmeter between purple/light blue (circuit 147) and yellow/red (circuit 148) leads. Resistance should measure 20,000-30,000 ohms.
5. Connect ohmmeter between purple/light blue (circuit 147) and brown/light green (circuit 149) leads. Resistance should measure 40,000-60,000 ohms.
6. If proper resistance is not obtained, check wiring and servo for damage. Replace or service as necessary.

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