Question about 1989 Oldsmobile Ninety Eight

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How do you find out what the service engine soon is refering to?

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You have to have an mechanic shop connect an ECU diagnostic code reader to find out what error codes the ECU is reporting. Then you need to replace/repair what has gone bad on the vehicle.

Posted on Aug 05, 2010

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Posted on Jan 02, 2017

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P0627 on a ford ranger tdci canot find those modules and relays to check


n the event of fuel pump "A" control circuit fault, a trouble code will be stored and a service engine soon lamp will be illuminated. Some models require multiple drive cycles (as many as 8) with a failure in order for the service engine soon lamp to be illuminated and others will activate it on the initial failure. The "A" refers to more of an area of malfunction as opposed to a particular circuit or component.

Symptoms

Symptoms may include a stored trouble code, an illuminated fuel cap malfunction lamp, and possibly an illuminated service engine soon lamp. If this code is stored, and a service engine soon lamp has not yet been illuminated, the code may be shown as pending.

Common Causes

The most likely cause of this code being stored is a defective fuel pump or relay. Most fuel pump control circuits are integrated into the PCM. Other causes may include corroded, open, or shorted wiring or connectors in the CAN Bus harness, a loose control module ground strap or broken ground wire, the CAN bus may also be defective

Feb 29, 2016 | Ford Cars & Trucks

1 Answer

Is there any way to reset service and ses light on a 2002 Saturn l200 without a scan tool


About 10,800 results (0.85 seconds) Search Results

    DIY: Reset Check Engine Light without OBDII reader ...

    ? 3:31
    https://www.youtube.com/watch?v=TvBcdjLkBhU
    Jul 1, 2014 - Uploaded by Christian Macias
    Learn how to reset your Check Engine Light (CEL) withoutusing an OBD II 2 scanner / reader tool. Will work on just about... Also referred to as Service Engine Soon, and Malfunction Indicator Light (MIL). This is very general ...Missing: l200

    Service Wrench Light - YouTube

    ? 1:34
    https://www.youtube.com/watch?v=S8pvlJNUkW8
    Feb 17, 2009 - Uploaded by richpin06a
    ... reset sequence; this was the reason for the two indicator lights..... My 2002 Saturn LW300 V6 has this light come on after driving 40 KM (25 ... My service engine soon light is on, on my saturns series (2001) how would i check mine?.. i dont have the scan tool, but i did hear of using a paper clip before.

    How to Reset the service engine light on a Saturn S-Series ...

    vehicle-maintenance.wonderhowto.com/.../reset-service-engine-light-satu...
    Apr 30, 2010 - It is never a good sign when the 'check engine' light comes up on your


Jan 26, 2016 | Saturn Cars & Trucks

1 Answer

Chevy cobalt 2010 scan code po641 reduce engine power


Possible causes
- Faulty Engine Control Module (ECM)
- ECM harness is open or shorted
- ECM circuit poor electrical connection
- Shorted sensor on 5 volt circuit
help.jpg What does this mean? When is the code detected?
The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher or lower than expected
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0641 Chevrolet Description
The control module has 2 internal 5-volt reference buses called "5-volt reference 1" and"5-volt reference 2". Each reference bus provided 5-volt reference circuit for more than one sensor. Therefore, a fault condition on one 5-volt reference circuit will affect the other 5-volt reference circuits connected to the reference bus. The control module monitors the voltage on the 5-volt reference buses.

Read more: http://engine-codes.com/p0641_chevrolet.html#ixzz31AP60YfR

Apr 19, 2014 | 2010 Chevrolet Cobalt

1 Answer

I have a 2001 mustang bullitt that is showing service engine light on. Took it to mechanic and he put 2 different machines on it to show code for problem. No codes coming up and he can't turn off the...


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.

Jul 18, 2017 | 2001 Ford Mustang

1 Answer

No Service Engine Soon seen for code P0442


code p 442 refers to evaporative emission (EVAP) system---small leak detected
it also refers to large leak detected --fuel cap off/loose === causes hose/connection,-- intake leak--EVAP canister---EVAP canister purge valve --mechanical fault --- EVAP pressure sensor

Oct 17, 2017 | Mitsubishi Cars & Trucks

1 Answer

What does the "service engine now" light mean?


Keep in mind that two warning there, Check Engine and Service Engine Soon; Check Engine means there is a malfunction... Service Soon is reprogrammable, when you change you oil.

"Check Engine" are refer to the emission codes, but not always. I suggest visit some autozone ot autoshop with scan tools or "reader code" to know exactly what fault code is stored there. With this code number we could send you additional details.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Nov 05, 2011 | 1991 Cadillac Seville

1 Answer

What is the meaning of CHECK ENGINE ZONE for my ford expedetion 2003 v8 gasoline


http://www.ford.com/owner-services/customer-support/ask-ford-faqs?qtype=uq&inputtext=check+engine+zone

http://www.motorcraftservice.com/pubs/content/~WO3EXD/~MUS~LEN/41/03exdog5e.pdf

I checked the manual for 'CHECK ENGINE ZONE' and could find no reference to this for the 2003 Expedition.

There is a Service Engine Soon light though.

I looked all over the manual and could find no instrument cluster light to that effect.

Can you tell me what page refers to this?

Aug 03, 2010 | 2003 Ford Expedition

1 Answer

Two service engine lights


one is service engine soon referring to the engine and trans. systems, and one is service vehicle soon, referring to body, abs, hvac, etc. systems two different lights for 2 different types of trouble codes

Mar 17, 2010 | 2002 Pontiac Grand Am

1 Answer

Flashing light on dashboard 98 dodge neon service engine soon light on


11= Timing belt skipped 1 tooth or more from initial learned value, Intermittent loss of either camshaft or crankshaft position sensor, No crank reference signal detected during engine cranking for dodge odb readout. Hope this helps.

Sep 27, 2008 | 1998 Dodge Neon

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