Cruise Control Servo: Testing and Inspection

1. Separate the eight pin connector from the amplifier.
2. Connect an ohmmeter between the orange/yellow (circuit 144) and the grey/black (circuit 145) leads at the eight pin connector, refer to SCHEMATIC DIAGRAMS/ELECTRICAL AND ELECTRONIC DIAGRAMS. Resistance should measure 40-75 ohms.
3. Connect an ohmmeter between the orange/yellow (circuit 144) and the white/pink (circuit 146) leads at the connector. Resistance should measure 100-150 ohms.
4. Connect an ohmmeter between the purple/light blue (circuit 147) and Yellow/Red (circuit 148) leads. Resistance should measure 20,000--30,000 ohms.
5. Connect an ohmmeter between the 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 the wiring and servo separately for damage and replace or service as required.