Cruise Control Ecu Circuit Testing Charts: Notes

NOTE: Cruise control ECU circuit testing charts are provided to pinpoint a malfunctioning circuit. Checking pin voltages at CC ECU will help determine if CC ECU is receiving and sending proper voltage signals. Using test charts may also help in determining if there is a short or open in harness or connectors.

NOTE: Unless stated otherwise in testing procedures, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. Voltage readings may vary slightly due to battery condition or charging rate.

Fig 1: Cruise Control ECU Voltage Testing

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Fig 2: Cruise Control ECU Voltage Testing

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Fig 3: Cruise Control ECU Harness & Connector Testing

Fig 4: Cruise Control ECU Harness & Connector Testing