Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD1999CROWN VICTORIA LX, 4.6 9REPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCRUISE CONTROL SYSTEMSSYSTEM TESTSTEST K: VEHICLE SPEED SENSOR CIRCUIT FAILURE (FLASH CODE 4)
1999 Ford Crown Victoria LX, 4.6 9
Test K: Vehicle Speed Sensor Circuit Failure (Flash Code 4)
1999 Ford Crown Victoria LX, 4.6 9SECTION Test K: Vehicle Speed Sensor Circuit Failure (Flash Code 4)
NOTE:
This test only applies to vehicle equipped with electronic instrument clusters.
- Test drive vehicle and observe speedometer operation. If speedometer operates properly, go to next step. If speedometer does not operate properly, repair speedometer as necessary. See appropriate INSTRUMENT PANELS article.
- Turn ignition switch to LOCK position. Disconnect Vehicle Speed Sensor (VSS) harness connector C1020. Disconnect cruise control servo/actuator harness connector C234. Measure resistance in Gray/Black wire between VSS harness connector C1020 and terminal No. 3 at cruise control servo/actuator harness connector C234. See Figure . If resistance is 5 ohms or less, replace cruise control servo/actuator. If resistance is greater than 5 ohms, repair open in Gray/Black wire.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.