LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2004 >> Thunderbird >> Repair and Diagnosis >> External Pages >> Different car >> Section 322 (Speed Control) >> Diagnosis And Testing >> Speed Control >> Inspection and Verification >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection and Verification: Notes

WARNING: This page is about a different car, the 2004 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern by operating the speed control to duplicate the condition.
  2. Verify the speedometer operates correctly without speed control by test driving the vehicle. If the speedometer does not operate correctly, refer to ELECTRONIC FEATURES .
  3. Verify the stoplamps operate correctly with the ignition switch in the OFF position. If the stoplamps do not operate correctly, refer to EXTERIOR LIGHTING .
  4. Verify the parking brake is not applied and is operating correctly. If the parking brake is not operating correctly, refer to BRAKE SYSTEM .
  5. Visually inspect for obvious signs of mechanical and electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Speed control cable
    • Throttle lever
    • Speed control actuator
    • Battery junction box (BJB) fuse 37 (15A)
    • Circuitry
    • Powertrain control module (PCM)
  6. If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel, and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
    • Check that the program card is correctly installed.
    • Check the connections to the vehicle.
    • Check the ignition switch position.
  7. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
  8. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
    • SCP or UBP circuits fault; all electronic control units no response/not equipped, refer to MODULE COMMUNICATIONS NETWORK .
    • No response/not equipped for PCM, Go To PINPOINT TEST A .
    • System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the KOEO Test.
  9. If the DTCs retrieved are related to the concern, go to the POWERTRAIN CONTROL MODULE (PCM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX  to continue diagnostics.
  10. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART  to continue diagnostics.
NOTE: DTC P0703 and DTC P1572 must be repaired before any other DTC.
scientia non olet · About LEMON Manuals