How to odb1 read with paper clip - 1993 Lincoln Town Car

Your '89 has no OBD plug in. To retrieve codes, turn key on, off, on, off, on, off, and then leave on. (Cycle key 3 times on-off, then leave in ON, do not start engine.) Codes will begin to flash on the check engine light (cel). All codes are only 2 digits. Probably see a code 12-one long flash and two short flashes-code 12 is normal, disregard it. If you have to, keep repeating the codes until you get them all. Post them here, or google the codes for help.
here is a link: https://www.2carpros.com/articles/retrieve-trouble-codes-for-chrysler-dodge-plymouth-odb1-1995-and-earlier-car-mini-van-and-light-truckshttps://www.2carpros.com/articles/retrieve-trouble-codes-for-chrysler-dodge-plymouth-odb1-1995-and-earlier-car-mini-van-and-light-trucks

Here is the procedure, and code explanation. http://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method.

Insert your key in the ignition and turn the key to the "ACC," or "Accessories," position.

Insert a straightened paper clip into the small, circular slot to the left of the ignition slot.

Turn the key to the "Off" position.

Pull gently on both the paper clip and the key to slide the cylinder out of its slot. You can then remove the paper clip and pull the key out of the removed cylinder.

Read more : http://www.ehow.com/how_7705012_remove-chevys-key-lock-cylinder.html

you might not have an assembly line communication link [aldl] port if you want to read a code from your check engine light --turn key on [not start]--than off do this 3 times and on 3 rd time light will blink the code [say its 12 it will blink once than short pause than blink 2 more times ] you can retrieve the codes meaning online search obd l codes

That's the ODB1 system giving you diagnostic info about a problem. Read up on what the codes mean here: Miata Computer Diagnostic Fault Codes

Normal pressure with the engine-compressor off is outside air temp. So both gauges would read 70 or 80 or whatever.
When the system is running, normal is 30-50 low and 200-300 high.
One thing that comes to mind to test is the low pressure switch.

Hi there,

If you've had your vehicle computer codes read and determined no issue with the VSC circuit, then you just need to cancel the warning light.

I've made up the following instructions, on how to clear VSC & TRAC Warning lights:

Zero Point Calibration of Yaw Rate and Deceleration Sensors Using Paper Clips (or jumper wires).

First, locate the 16-pin ODB II connector under the steering wheel (beneath the dash). The pins are numbered sequentially backwards from right to left (from the wide side of the connector looking at it from underneath).

Take two normal-sized paper clips (or suitable jumper wires). If using paper clips, straighten one edge of one of the paper clips. For the other, bend it open to a 90-degree angle (like an elbow).

Insert one paper clip/wire into pin # 14 (Ts), and the other paper clip/wire into pin # 4 (CG) of the OBD II connector - DO NOT allow the paper clips/wires to make contact at this point.
Refer to diagram below:

1. Ensure the shift lever is in "P" range.

2. Turn the ignition switch to "ON" (not start).

3. Momentarily touch the two paper clips/wires together (short) and separate again (open) - Repeat this process 5 times (within 8 seconds of turning ignition on).

Verify that the VSC indicator light is illuminated, indicating the Recorded Zero point is erased.

4. Turn the ignition switch "OFF".

5. Remove both paper clips/jumper wires from the OBD II connector.

6. Turn the ignition switch "ON" (not start) - wait until VSC warning light turns off (approx. 20 seconds), then wait 2 seconds.

7. Turn the ignition switch "OFF".

9. Re-insert paper clips/jumper wires to terminals #4 & #14 of the OBD II connector (as per above diagram).

10. Turn the ignition switch "ON" (not start) - VSC warning light should remain illuminated for 4 seconds, then start flashing at 0.13 second intervals.

12. After VSC warning light flashes for 2 seconds, turn the ignition switch "OFF".

13. Remove paper clips/jumper wires from the OBD II connector.

Drive your vehicle to confirm VSC & TRAC warning lights have been reset and no longer illuminate.



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94 and 95 bonneville's have a odb1 system but the plug under the dash for the code reader is for odb2/.
you have to get a code reader that will read odb1 and odb2 with a manufacture special plug to read them.
also the computer in the 94-95 are only used in those 2 years.
new one at most auto parts stores is about $100.00
cheap compared to other years.
if you have lots of codes and it runs good but just turns itself off all the time it's the computer.
I had to replace 2 so far one in a 94 and one in a 95.

This info is from the tech manual.....because you have a 16-pin DTC connector, you have the OBD II system in your car. This is cut and pasted info from the tech manual:

Fig. 2: A Tech 1® , or equivalent scan tool must be used to retrieve codes from 1996–00 models with the 16-pin DLC connector



If you look on your doorjamb and read the sticker, it will tell you the year of your car...and if it was manufactured AFTER a certain month, then you have the 96 model...and from what you are saying, you have a 96 model because it has the 16-pin connector and not the 12-pin connector that the 95 and earlier had.

Reading Codes OBD-I SYSTEMS

yeah, should be just under the glove box, However I don't know if 97s are odb1? so its hard to say how much data they will be able to read off the computer.