Cruise Control Ecu Circuit Testing Charts

NOTE: CC ECU circuit testing charts are provided to pinpoint a malfunctioning circuit. Checking pin voltages at CC ECU connector 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. Test circuit continuity, resistance and voltages by backprobing CC ECU harness connector.

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 very slightly due to battery condition or charging rate.

Fig 1: CC ECU Harness & Conn. Testing (W/ Vacuum Actuator - 1 Of 2)

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Fig 2: CC ECU Harness & Conn. Testing (W/ Vacuum Actuator - 2 Of 2)

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Fig 3: CC ECU Harness Voltage Testing (W/ Vacuum Actuator - 1 Of 2)

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Fig 4: CC ECU Harness Voltage Testing (W/ Vacuum Actuator - 2 Of 2)

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Fig 5: CC ECU Harness Voltage Testing (W/ Motor Actuator - 1 Of 2)

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Fig 6: CC ECU Harness Voltage Testing (W/ Motor Actuator - 2 Of 2)

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Fig 7: CC ECU Harness & Conn. Testing (W/ Motor Actuator - 1 Of 2)

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Fig 8: CC ECU Harness & Conn. Testing (W/ Motor Actuator - 2 Of 2)

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