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Pinpoint Test E: Flash Code 3 - Speed Control DEACTIVATOR Switch Circuit Failure

WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connectors.
  1. E1 CHECK THE SPEED CONTROL DEACTIVATOR SWITCH SIGNAL 
    • Key in OFF position.
    • Disconnect: Speed Control Actuator C122
    • Key in ON position.
      • Fig 1: Measuring Voltage Between Speed Control Actuator C122-9, Circuit CES09 (VT/OG)
      GF0010781Courtesy of FORD MOTOR CO.
    • Measure the voltage between the speed control actuator C122-9, circuit CES09 (VT/OG), harness side and the speed control actuator C122-10, circuit GD123 (BK/GY), harness side.
    • Is the voltage greater than 10 volts? 
    1. YES  : INSTALL a new speed control actuator. REFER to Speed Control Actuator . REPEAT the self-test.
    2. NO  : Go to  E2.
  2. E2 CHECK CIRCUIT CBP26 (BU/WH) FOR VOLTAGE 
    • Key in OFF position.
    • Disconnect: Speed Control Deactivator Switch C277
    • Key in ON position.
      • Fig 2: Measuring Voltage Between Speed Control Deactivator Switch C277-1, Circuit CBP26 (BU/WH) & Ground
      GF0004252Courtesy of FORD MOTOR CO.
    • Measure the voltage between the speed control deactivator switch C277-1, circuit CBP26 (BU/WH), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  E3.
    2. NO  : VERIFY the smart junction box (SJB) fuse 26 (2A) is OK. If OK, REPAIR the circuit. REPEAT the self-test.
  3. E3 CHECK CIRCUIT CES09 (VT/OG) FOR AN OPEN 
    • Key in OFF position.
      • Fig 3: Measuring Resistance Between Speed Control Actuator C122-9, Circuit CES09 (VT/OG)
      GF0010766Courtesy of FORD MOTOR CO.
    • Measure the resistance between the speed control actuator C122-9, circuit CES09 (VT/OG), harness side and the speed control deactivator switch C277-2, circuit CES09 (VT/OG), harness side.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new speed control deactivator switch. REFER to Speed Control Deactivator Switch . REPEAT the self-test.
    2. NO  : REPAIR the circuit. REPEAT the self-test.
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