Service engine light on, Car just serviced. still on

Service engine soon or check engine light? Engine light needs scanned for codes. Service engine soon is for oil changes and such. To get rid of service lights, turn the key on, press the gas pedal three times within five seconds. The light will flash. turn the key off. it's reset. At least check or change the oil and filter though.

Error Code: P0154
Description:
Heated Oxygen Sensor (HO2S) 1 , Bank 2 - No Activity Detected
Problem areas:
- Wiring.
- Open circuit in signal wire, between Heated Oxygen sensor 1, Bank 2 and ECM. (Must check and confirm)
- Heated oxygen sensor (HO2S).
- Engine control module (ECM).

There is a diagnostic procedure in the factory service repair manual for engine light lit ,no codes . Did you take it to ford dealer ? MIL - is referring to check engine , service engine soon etc...

• MIL always on when engine is running (no DTCs):
• MIL circuits

• For Focus, Mustang, Town Car, Continental, LS6/LS8, Escape, Windstar, F-150, Expedition and Navigator/Blackwood:
• Instrument Cluster, Section 413-01 of the Workshop Manual.
• All Others:
• GO to NB1

SERVICE ENGINE SOON indicator After the engine is started, the SERVICE ENGINE SOON indicator will prove out for a duration of three seconds. If the instrument cluster does not receive a message from the PCM within five seconds, the instrument cluster will illuminate the SERVICE ENGINE SOON indicator and log a diagnostic trouble code (DTC).

• An indicator is inoperative/always on - SERVICE ENGINE SOON

• Circuitry.
• Bulb.
• Instrument cluster.
• PCM.

• GO to Pinpoint Test P .

PINPOINT TEST P: AN INDICATOR IS INOPERATIVE/ALWAYS ON - SERVICE ENGINE SOON CONDITIONS DETAILS/RESULTS/ACTIONS P1 CARRY OUT THE INSTRUMENT CLUSTER SERVICE ENGINE SOON INDICATOR ACTIVE COMMAND Trigger the HEC active command MIL.

• Did the SERVICE ENGINE SOON indicator illuminate?

Yes REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.

No INSTALL a new instrument cluster; REFER to Instrument Cluster . CLEAR the DTCs. REPEAT the self-test.

Did you put right wires.

Service engine soon has nothing to do with service or maintenance . Emission's OBD 2 engine managment system . Light on ! DTC'S - diagnostic trouble codes stored . Your don't know THAT ! Your best bet , take it to the dealer .

the anti-lock and traction lights will come on together if there is a common problem with the two, since they are closely related. may be a wheel speed sensor or something similar. the service engine soon light indicates a problem with the engine computer, can be anything from an emission system problem or an engine performance problem. all of these lights can come on with no apparent running problems on the car. the service vehicle soon light is basically a maintenance reminder, an oil change light. take the car into a shop and have the codes read for these lights.

TAKE CAR TO AUTO ZONE THEY WILL SCAN IT FOR YOU FREE FOR YOU TO CHECK PCM CODE CAUSING SERVICE ENGINE LIGHT TO COME ON.

Have had the car serviced lately? Oil change, tune up, things of that nature? It may be time to do that stuff. Does that car have a "Service Engine Soon" light and a "Check Engine" light? If the car has been serviced recently and the "Service Engine Soon" light is coming on, it's because who ever serviced it, did not reset the light. To reset the light, this works on most GM cars, turn the ignition to the "on" position DO NOT START THE CAR!!! Now within 5 seconds push the gas pedal to the floor and release it 3 times. That should reset the light if that don't work, you may want see what it says in the owners manual. Or you may have to take it to a shop. If the "Check Engine" light is coming on then there is a problem with the vehicle and there should be a "code" in the computer. Most auto parts stores will put a scanner on your car and read the codes for free. Those lights are there for a reason, if ignore them your car will let you down.

what service light
SERVICE VEHICLE OR SERVICE ENGINE
if it's the SERVICE ENGINE LIGHT then you need to get a CODE before i can help you

Your car needs O2 sensors and if one or any are unplugged your car will operate as you described(like ****). To get your check engine light off you need to find out what is triggering the check engine light sensor. It it most likely in need of an O2 sensor replacement. If you can tell me what kind of car you have I can give you more information.