1995 Oldsmobile 98 check engine light is on. It has an OBD 1.5 connector. Need a ODB 1.5 compatible scanner tool.

This vehicle is equipped with a DLC connector next to the computer. It is not equipped with OBD

What year an make vehicle ? Before 1996 you can do that on some make vehicles , not all ,GM cars mostly ! 1996 an above need scanner for all vehicle makes !

If it is OBD-1 you can use a paper clip to jumper two terminals in the test plug under the dash, and then watch the check engine light flash. If it is OBD-2 you need a code reader or scanner.
Most auto parts stores will read OBD-2 systems for free in hopes of selling you some parts.

obd relates to the engine system. you will need a scan tool that will communicate with the abs system also.

http://www.xcardiag.com/wholesale/maxiscan-ms609-obdii-eobd-scan-tool-with-abs-capability-fast-shipping-302.html

Well a 1995 would be using a ODB 1 computer. So you would need to find a OB1 scanner or a ODB 1 & 2 scanner in one.

You've already completed many of the common issues for a check engine light. At this point, if you don't know the error code that the engine is sending out I'd recommend getting a OBD-1 code reader (1995 and older).

Check out this video:
http://www.youtube.com/watch?v=_3CzHCfz-9A

If you don't have a code reader, you might just want to take it into a shop and have them tell you when the code is.

Or, purchase one and do the work yourself! Here's a link that lists different ODB-1 code readers:
http://www.nextag.com/obd-1-scanner/search-html

If this has helped, please give me the appropriate thumbs up! Thanks, and good luck!

First of all, it's located below the steering wheel underneath the dash.
If it was late 1995 the OBD-II may be on the vehicle, but I think not. Usually '96 and above can be read by an OBD-II scanner.

OBD-I also had a connector in the same place, but uses a different scan tool.

good luck in reading codes.

How to Replace a Throttle Position Sensor
(DIY & Save up to $135.75 ) - Time: 2.1 hours

Parts:
1. Throttle Position Sensor - $ 55.44

Tools:
1. Scan Tool
2. Screwdriver
3. Multimeter

Procedure:
1. Locate the OBD data link connector (DLC). Refer to your owner’s manual for the specific location.

• Tip: The OBD-I data link connector is usually located in the engine compartment near the battery or the fuse box. The OBD-II connector (post 1995 cars) is usually located beneath the instument panel next to the steering column.

2. Turn your key to the“ON” position. Do not start the engine.

3. Plug your scan tool into the OBD data link connector. Turn on the scan tool and select the appropriate steps to read the diagnostic trouble code (DTC).

Scanner plugged into OBD-II data link connector.

• Tip: The OBD-II diagnostic trouble code (DTC) is a 5 character alphanumeric code. The first digit is a letter that indicates the component group, the second digit is OBD mandated or manufacturer specfic, the third digit is a subgroup, and the fourth and fifth digits define the component and basic problem.
  

• 4. Locate the throttle position sensor.

• 
  
• Throttle position sensor
  

• 5. Disconnect the electrical connector from the throttle position sensor.

• 
  
• Electrical connector removed
  

6. Test the resistance of the throttle position sensor (TPS) with a digital multi-meter. If the resistance is out of specifications, the TPS must be replaced.

• 7. Remove the throttle position sensor.



Removing sensor mounting screws

8. Install the new throttle position sensor. Tighten the mounting screws and attach the electrical connector.

• 9. Erase the diagnostic trouble code (DTC) with the scan tool using the“delete” or“erase” command. Road test your vehicle to see if the check engine light returns.

Check engine light


• Tip: If the check engine light returns, repeat the diagnostic process for additional DTCs or take your vehicle to a certified repair shop.

Direct OE replacement

Hope helped with this. Good luck (remember rated this help).

The 1995 Olds 88 has an obd 2 plug, but is an obd 1 system. Some people call it obd 1.5
There is no option to jump 2 contacts to flash the codes on the check engine light in these cars.
You will either need a compatible scan tool, or a cable to hook to a laptop and the software to pull the codes. (check out www.aldlcable.com)
One such scan tool is the Actron CP9185. It has the extra data pin for the 8192 baud communication with the computer in these cars. (pin 9 on the OBD 2 connector)

OBD 1.5 OBD 1.5 refers to a partial implementation of OBD-II which General Motors used on some vehicles in 1994 and 1995 (GM did not use the term OBD 1.5 in the documentation for these vehicles - they simply have an OBD and an OBD-II section in the service manual.)
For example, the 94-95 Corvettes have one post-catalyst oxygen sensor (although they have two catalytic converters), and have a subset of the OBD-II codes implemented. For a 1994 Corvette the implemented OBD-II codes are P0116-P0118, P0131-P0135, P0151-P0155, P0158, P0160-P0161, P0171-P0175, P0420, P1114-P1115, P1133, P1153 and P1158.[1]
This hybrid system was present on the GM H-body cars in 94-95, W-body cars (Buick Regal, Chevrolet Lumina ('95 only), Chevrolet Monte Carlo ('95 only), Pontiac Grand Prix, Oldsmobile Cutlass Supreme) in 94-95, L-body (Chevrolet Beretta/Corsica) in 94-95, Y-body (Chevrolet Corvette) in 94-95, on the F-body (Chevrolet Camaro and Pontiac Firebird) in 95 and on the J-Body (Chevrolet Cavalier and Pontiac Sunfire) and N-Body (Buick Skylark, Oldsmobile Achieva, Pontiac Grand Am) in 95.
Depending on the year and the vehicle, a car with the OBD 1.5 system may have either the older OBD-I connector, or the newer OBD-II connector, but they are electrically identical to each other.[citation needed]
The pinout for the ALDL connection on these cars is as follows:
Female OBD connector pinout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 For ALDL connections, pin 9 is the data stream, pins 4 and 5 are ground and pin 16 is battery voltage.
Additional vehicle-specific diagnostic and control circuits are also available on this connector. For instance, on the Corvette there are interfaces for the Class 2 serial data stream from the PCM, the CCM diagnostic terminal, the radio data stream, the airbag system, the selective ride control system, the low tire pressure warning system and the passive keyless entry system.[2]
An OBD1.5 has also been used on Mitsubishi cars of '95 '97 vintage.
An OBD1.5 has been used in some 1995 Volkswagen VR6's (Juice Box's GTI)