Question about 1992 Oldsmobile Toronado

2 Answers

What button sequence to I press on the vic to get the cpu codes for the check engine light?

Posted by Anonymous on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Oldsmobile Master
  • 6,826 Answers

Reading & Clearing Codes READING CODES (EXCEPT CADILLAC) Fig. 4: Example of a code 12 displayed on the check engine lamp What button sequence to I press on the vic to get - 79222g25.gif
Since the inception of electronic engine management systems on General Motors vehicles, there has been a variety of connectors provided to the technician for retrieving Diagnostic Trouble Codes (DTC)s. Additionally, there have been a number of different names given to these connectors over the years; Assembly Line Communication Link (ALCL), Assembly Line Diagnostic Link (ALDL), Data Link Connector (DLC). Actually when the system was initially introduced to the 49 states in 1979, early 1980, there was no connector used at all. On these early vehicles there was a green spade terminal taped to the ECM harness and connected to the diagnostic enable line at the computer. When this terminal was grounded with the key ON, the system would flash any stored diagnostic trouble codes. The introduction of the ALOL was found to be a much more convenient way of retrieving fault codes. This connector was located underneath the instrument panel on most GM vehicles, however on some models it will not be found there. On early Corvettes the ALOL is located underneath the ashtray, it can be found in the glove compartment of some early FWD Oldsmobiles, and between the seats in the Pontiac Fiero. The connector was first introduced as a square connector with four terminals, then progressed to a flat five terminal connector, and finally to what is still used in 1993, a 12 terminal double row connector. To access stored Diagnostic Trouble Codes (DTC) from the square connector, turn the ignition ON and identify the diagnostic enable terminal (usually a white wire with a black tracer) and ground it. The flat five terminal connector is identified from left to right as A, B, C, D, and E. There is a space between terminal D and E which permits a spade to be inserted for the purposes of diagnostics when the ignition key is ON. On this connector terminal D is the diagnostic enable line, and E is a ground. The 12 terminal double row connector has been continually expanded through the years as vehicles acquired more on-board electronic systems such as Anti-lock Brakes. Despite this the terminals used for engine code retrieval have remained the same. The 12 terminal connector is identified from right-to-left on the top row A-F, and on the bottom row from left-to-right, G-L. To access engine codes turn the ignition ON and insert a jumper between terminals A and B. Terminal A is a ground, and terminal B is the diagnostic request line. Stored trouble codes can be read through the flashing of the Check Engine Light or on later vehicles the Service Engine Soon lamp. Trouble codes are identified by the timed flash of the indicator light. When diagnostics are first entered the light will flash once, pause; then two quick flashes. This reads as DTC 12 which indicates that the diagnostic system is working. This code will flash indefinitely if there are no stored trouble codes. If codes are stored in memory, Code 12 will flash three times before the next code appears. Codes are displayed in the next highest numerical sequence. For example, Code 13 would be displayed next if it was stored in memory and would read as follow: flash, pause, flash, flash, flash, long pause, repeat twice. This sequence will continue until all codes have been displayed, and then start all over again with Code 12. CLEARING CODES (EXCEPT CADILLAC) Except Riviera, Toronado and Trofeo: To clear any Diagnostic Trouble Codes (DTC's) from the PCM memory, either to determine if the malfunction will occur again or because repair has been completed, power feed must be disconnected for at least 30 seconds. Depending on how the vehicle is equipped, the system power feed can be disconnected at the positive battery terminal pigtail, the inline fuse holder that originates at the positive connection at the battery, or the ECM/PCM fuse in the fuse block. The negative battery terminal may be disconnected but other on-board memory data such as preset radio tuning will also be lost. To prevent system damage, the ignition switch must be in the OFF position when disconnecting or reconnecting power. When using a Diagnostic Computer such as Tech 1, or equivalent scan tool to read the diagnostic trouble codes, clearing the codes is done in the same manner. On some systems, OTC's may be cleared through the Tech 1, or equivalent scan tool. On Riviera, Toronado and Trofeo, clearing codes is part of the dashboard display menu or diagnostic routine. Because of the amount of electronic equipment on these vehicles, clearing codes by disconnecting the battery is not recommended. Riviera, Toronado and Trofeo (Non-CRT/DID Vehicles) — Using The On-Board Diagnostic Display System: First turn the ignition to theON position. On Riviera depress the OFF and TEMP buttons on the ECCP at the same time and hold until all display segments light. This is known as the Segment Check. On Toronado and Trofeo follow the same procedure, however, depress the OFF and WARMER buttons on the ECOP instead. After diagnostics is entered, any OTC's stored in computer memory will be displayed. Codes may be stored for the PCM, BCM, PC or SIR systems. Following the display of OTC's, the first available system for testing will be displayed. For example, 'EC?' would be displayed on Riviera for EOM testing, while on Toronado and Trofeo the message 'ECM?' will appear. The message is more clear on these vehicles due to increased character space in the IPO display area.

  1. Depress the 'FAN UP' button on the ECCP until the message 'DATA EC?' appears on the display for Riviera, or 'ECM DATA?' is displayed on Toronado and Trofeo.
  2. Depress the 'FAN DOWN' button on the ECCP until the message 'CLR E CODE' appears on the display for Riviera, or 'ECM CLEAR CODES?' is displayed on Toronado and Trofeo.
  3. Depressing the 'FAN UP' button on the ECCP will result in the message 'E CODE CLR' or 'E NOT CLR' on Riviera, 'EOM CODES CLEAR' or 'ECM CODES NOT CLEAR' on Toronado and Trofeo. This message will appear for 3 seconds. After 3 seconds the display will automatically return to the next available test type for the selected system. It is a good idea to either cycle the ignition once or test drive the vehicle to ensure the code(s) do not reset. Toronado and Trofeo (CRT/DID Equipped) — Using The On-Board Diagnostic Display System: First turn the ignition switch to theON position. Depress the 'OFF' hard key and 'WARM' soft key on the CRT/DID at the same time and hold until all display segments light. This is the 'Segment Check.' During diagnostic operation, all information will be displayed on the Driver Information Center (DIC) located in the Instrument Panel Cluster (IPC). Because of the limited space available single letter identifiers are often used for each of the major computer systems. These are: E for ECM, B for 6CM, I for IPC and R for SIR. After diagnostics is entered, any OTC's stored in computer memory will be displayed. Codes may be stored for the PCM, BCM, PC or SIR systems. Following the display of OTC's, the first available system for testing will be displayed. This will be displayed as 'ECM?'.
  4. Depress the 'YES' soft key until the display reads 'ECM DATA?'.
  5. Depress the 'NO' soft key until the display reads 'ECM CLEAR CODES?'.
  6. Depressing the 'YES' soft key will result in either the message 'ECM CODES CLEAR' or 'ECM CODES NOT CLEAR' being displayed, indicating whether or not the codes were successfully cleared. This message will appear for 3 seconds. After 3 seconds the display will automatically return to the next available test type for the selected system. It is a good idea to either cycle the ignition once or test drive the vehicle to ensure the code(s) do not reset.

Posted on Jul 11, 2010

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 2 Answers

Loss of power on hillclimb. no low gear on take off improper shifting. excessive fuel consuption

Posted on Jun 15, 2011

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Check engine light

93 ZJ 5.2L grand cherokee.

FSM real. USA.

click emissions
see page 25-3 for flash codes.. its there. for your jeep
the Diagnostic is activated by fast ignition key cycles ,stated there.
in 5seconds.

next slide down to wiring. in the window. above.
page 8w-40-4
CEL lamp' schematic pin C2-6 blk/LG color
see the trip switch, this is the silly leaded fuel trip timimer

best i can tell this jeep has the CCD buss
the CLuster is stand alone processor. it communicates
from PCM to the Display VIC. the VIC glows the lamps.
Or has the GDM display, there are 2 options.
BASE graphics display module or VIC option.
ah page 8e-4 tells you the CEL is not hardwired lamp.
it uses the fancy back light display.

so do the key flash trick so see the display show CEL flash codes.
my guess, all this is in the log lost operators guide too.

Jan 02, 2014 | Jeep Cars & Trucks

1 Answer

Reset check engine light

You may have to use a code reader to reset the CPU as all you have tried sometimes corrupts the CPU program

Oct 04, 2013 | 1996 Nissan Sentra

1 Answer

Check Engine Light Crown Vic 1994 - runs great

When the service engine soon light (Also called the check engine light) is turned on this is to alert you to the fact that Powertrain Control Module (computer) has detected a failure somewhere in the systems it controls you may not feel any difference in the way the engine runs, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.

Jul 27, 2012 | 1994 Ford Crown Victoria

1 Answer

I have a 1998 Plymouth voyager and the climate control lights are flashing. I ran a test i found on the internet and got it down to two lights flashing(the ac and the recirculate). I got it to where the...

OK got your message on the other post (About the van) I am assuming that your Voyager is equipped with Automatic Climate Control. Follow the instructions below and you will get a better idea of what is wrong with your system.

1. To enter calibration/diagnostics test, set parking brake. Start and warm engine to normal operating temperature. With engine idling, turn blower switch to high. Turn mode switch to panel. Open all outlets. Move temperature to full cold.
2. Press and hold rear wash and rear wiper buttons simultaneously for 5 seconds (Until ALL LEDs illuminate). All LEDs should illuminate for 5 seconds. Rear wiper and intermittent rear wiper button LEDs will flash alternately during calibration/diagnostics test.
3. After approximately 60 seconds, if only the rear wiper button LED is flashing, calibration is successful and the system is okay. If rear wiper and intermittent rear wiper button LEDs are flashing, Diagnostic Trouble Codes (DTCs) are present. (See "Reading Diagnostic Codes" below)
4. To exit calibration/diagnostics test at any time, press the rear window defogger button, rear wiper button, or cycle the ignition off and then on. Test will automatically terminate 15 minutes after calibration/diagnostics is entered.

Reading Diagnostic Codes
1. Perform calibration/diagnostics test. If a DTC is present after calibration/diagnostics test has been performed, system will flash rear wiper and intermittent rear wiper button LEDs in sequence. Rear wiper represents code level, and intermittent rear wiper button LED represents code value.
2. Each time the rear wash button is depressed, rear wiper button LED wil cycle to the next code level in numeric sequence. After code level 5 is reached, rear wiper button LED will cycle back to code level 1. See table below.


May 12, 2011 | Plymouth Voyager Cars & Trucks

2 Answers

Check ebgine light keeps coming on

if check engine light keeps coming on. there is a problem. you can go to most any auto parts store and have the problem codes read for free. as long as the check engine light stays on to read codes. have a good day !

Apr 14, 2011 | GMC Yukon Cars & Trucks

1 Answer

96 Crown Vic will not start. Has spark, has fuel, crash button is set, has oil, Will run when fuel start is sprayed into carb. Any ideas ?

Check your fuel pressure to the Injectors at the pressure valve. Then check the wiring to the Injectors to see if they are getting power. Backtrack the Injector wiring if it is dead.

Your Crankshaft and Cam sensors would be working to supply the sparkplugs their power in the firing sequence. You need to check the part that supplies the Injectors their power in sequence.

Usually a bad TPS throttle position sensor will make a "Check Engine" light turn on. This part is on the drivers side of the Airhorn behind all the plastic Air filter ductwork. It has 2 screws and 1 electric connector. Unplug the connector and use an Ohmmeter to watch for resistance to change as you work the accelerator cable attached to the opposite side of the Airhorn. Connect the Ohmmeter to the TPS switch. The Resistance should change if the switch is good. If nothing happens, replace the TPS.

Jan 19, 2011 | 1996 Ford Crown Victoria

1 Answer

2006 outback with the stability control light and engine light on with the cruse light blinking - had it back to subaru twice and no joy!

The cruise control is automatically disabled whenever there is a problem that triggers the CEL. The flashing CC indicates that it is disabled. I'm not sure about the Stability Control light being on, but would think that if there was traction problem causing the Stability Control system to kick in, it would also turn off the CC -- the SC uses braking and engine throttle to stabilize the car so the CC has to be out of the loop.

If the CEL is still on, I'd have the codes read to see what triggered it. Usually, if a problem is not detected again for three consecutive driving cycles, the CEL will go out (although the code is stored for a longer time and can still be read).
Read the codes yourself. 2005+ models display all the engine/transmission/abs/vdc codes on the dash.

Just perform this sequence within 10 seconds:

1. Turn key to ON position (just before START)
2. Turn headlights ON
3. Press Trip button 4 times
4. Turn headlights OFF
5. Press Trip button 4 times
6. Turn headlights ON
7. Press Trip button 4 times
8. Turn headlights OFF (optional)

Codes will display in the trip meter. You might have to press the Trip button to cycle between engine, transmission, and braking computers.

The abs/vdc codes, at least, should be saved forever unless a dealer clears them.

Jan 14, 2011 | 2006 Subaru Outback

2 Answers

Crown Vic Fuel Problem? Maybe?

sounds like the trottle position sensor is acting up, if u have a scanner u can check it on live data, but it should thow a code some autoparts dealers offer free code reading

Mar 25, 2010 | 2000 Ford Crown Victoria

2 Answers

Trying to locate the button to turn off my check engine light to my 2008 chrysler sebring

there isnt one you need to disconect the batterie for 5 - 10 min then it will reset it self

Jan 02, 2010 | 2008 Chrysler Sebring Convertible

3 Answers

93 grand cherokee 5.2 V8, red square flashing on VIC display

Your VIC doesn't provide you with codes per se, it supplies other information and what you describe here is what should be written on your VIC, "Coolant Sensor Bad." The actual Coolant Sensor runs to your PCM or computer and your check engine light will come on if it runs at or above 5 volts or below 0.1 volts. If the red square on the vehicle layout is illuminated under the hood area, it means that your Coolant Recovery jug is either low on anti-freeze or the sensor next to the yellow filler cap is faulty...meaning you're low on Coolant and the VIC says that the "Coolant Sensors Bad" yet it's the amount of fluid in the plastic bottle next to the passenger side firewall, right in front of your PCM or computer. If you're low on anti-freeze, keep an eye on it, or have the coolant system pressure tested...including the 18 pound cap on the radiator itself. Also check the two wires hooked to the Coolant LEVEL Sensor in the jug with an Ohmmeter and it should be an open circuit if the level is fine, or hardly any Resistance if the level is low, causing that circuit to complete it's ground circuit and thus signaling the VIC through your BCM to turn on. (Body Control Module). The Haynes Manual you will need is # 50025 which encompasses all Jeep Grand Cherokee's from 1993 thru 2004.


Nov 05, 2009 | 1996 Jeep Grand Cherokee

Not finding what you are looking for?
1992 Oldsmobile Toronado Logo

531 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts


Level 3 Expert

75807 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22133 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8172 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides