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I have a 93' Subaru Legacy and the CEL is on.
Sent to Car Experts May 26 09:47 AM

I have a 93' Subaru Legacy and the CEL is on. What is the procedure for pulling the fault codes in my car?

Customer (name blocked for privacy)
Status:  Closed   Value: $10
Answer
May 26 3:08 PM (5 hours and 21 minutes and 29 seconds later)
         
REPLIEDCheck Mark

Hello!

There are 2 types of codes in your vehicle: history codes that are stored in memory, and running codes that are current faults and are generated during a self test.

Here are the procedures for retrieving both types of codes (the check engine light will flash codes). FIrst, the stored memory codes:

Images available only to Customers.

Images available only to Customers.

Now, the running codes:

Images available only to Customers.

Images available only to Customers.

If you ahve trouble locating one of the connectors under the dash, something sticks in the back of my mind about finding one factory taped up inside a harness near the brake pedal on a Subaru around this model year once.

Hope this is helpful; if so, please click my accept button! thanks!

Steve7654 -- Auto Service Technician99% Positive Feedback on 1735 Car Accepts
27 yrs ASE L1 Master Technician, Service manager
Reply
May 30 9:18 AM (3 days and 18 hours later)
         
Reply to Steve7654's Post: 1. Where is says connect the read memory connector, am I connecting it to it's self? From the diagram I see two wires per connector.

2. When the CEL blinks how do I determine the codes based on the blinks?

3. Once I make the repairs how do I erase the codes and turn off the CEL?
Customer (name blocked for privacy)
Answer
May 30 10:06 AM (47 minutes and 59 seconds later)
         
REPLIEDCheck Mark

Hello!

(1) The read memory connector halves are connected together to make the "check engine" light flash codes.

(2) You have to count the flashes to determine the digits of the service codes. Each digit will be separated by a slightly longer off time of the light. Each code will be separated by a pause that is longer then the one between digit flashes. Note the easiest thing to read, but I didn't design it....

(3) Tpically disconnecting the battery in most vehicles will erase the stored fault codes. Don't forget to disconnect the diagnostic connector you plugged together to get the codes.

Steve7654 -- Auto Service Technician99% Positive Feedback on 1735 Car Accepts
27 yrs ASE L1 Master Technician, Service manager
Reply
May 30 2:17 PM (4 hours and 11 minutes and 9 seconds later)
         
Reply to Steve7654's Post: Last question, are the code numbers the same general industry standard codes used say in my book that cam with my OBD II scanner?
Customer (name blocked for privacy)
Answer
May 31 12:43 PM (22 hours and 26 minutes and 6 seconds later)
         
ACCEPTEDCheck Mark

No, OBD-2 did not come around untill 1996; prior to that time, all manufacturers had their own proprietary code numbering system.

Here is a link to a web page which has 1993 Subaru code definitions, in case it is helpful to you:

http://autorepair.about.com/library/ts/obd-i/bl-dtcs-47a.htm

Steve7654 -- Auto Service Technician99% Positive Feedback on 1735 Car Accepts
27 yrs ASE L1 Master Technician, Service manager
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