199?-2004 How to Read AT Diagnostic Trouble Codes (DTCs) - Subaru Outback - Subaru Outback Forums
 1Likes
  • 1 Post By plain OM
 
LinkBack Thread Tools Rate Thread
post #1 of 3 (permalink) Old 04-24-2012, 08:13 AM Thread Starter
Registered User
 
Join Date: Jun 2006
Location: Eastern ON Canada
Car: 07 OBW 2.5i D-4AT
Posts: 10,033
Feedback Score: 5 reviews
199?-2004 How to Read AT Diagnostic Trouble Codes (DTCs)

I thought this had been posted here as a separate thread, but couldn’t find anything other than links to USMB, so thought I’d start a new thread to complement http://www.subaruoutback.org/forums/...ght=read+codes.

(If this information is already in a DIY thread, then let me know and I’ll delete this one.)

On the 4EAT phase 1 (pre-approx. 1999) and early phase II 4EAT (approx. 1999 to approx. 2004), this procedure for extracting stored AT transmission trouble codes should work (information is from related service manuals):

PERFORM READ DIAGNOSTIC TROUBLE
CODE (DTC).

1) Warm-up the engine.
2) Turn ignition switch to OFF.
3) Turn ignition switch to ON.
4) Start the engine.
5) Drive vehicle at speeds greater than 20 km/h (12 MPH).
6) Stop vehicle.
7) Brake pedal depressed and move select lever to 1 range.
8) Turn ignition switch to OFF.
9) Turn ignition switch to ON.
10) Move select lever 2 range.
11) Move select lever 1 range.
12) Move select lever 2 range.
13) Move select lever 3 range.
14) Move select lever D range.

At this point the AT Oil Temp light will do one of three things: flash at a two flashes/second rate indicating there are no stored codes (“normal”); flash more rapidly at a 4 flashes/second rate indicating a power supply problem (less likely); or, flash with long and short flashes which is indicating the stored codes, with the long flashes representing “10”s, and the short flashes “1”s, as illustrated here:



The flashing is terminated when the key is turned to Off.

There are two lists of trouble codes, one for the Phase I and a longer one for the early Phase II.

Phase I

11 Line pressure duty solenoid. Short or Disconnection in solenoid driving circuit
12 Lockup duty solenoid. Short or disconnection in solenoid driving circuit
13 2-4 brake timing solenoid. Short or disconnection in solenoid driving circuit
14 Shift solenoid B. Short or disconnection in solenoid driving circuit
15 Shift solenoid A. Short or disconnection in solenoid driving circuit
16 2-4 brake duty solenoid. Short or disconnection in solenoid driving circuit
21 ATF temperature sensor. Short or disconnection in input circuit
22 Pressure sensor. Short or disconnection in input circuit
23 Engine speed signal. No signal input above 10km/h
24 Transfer duty solenoid. Short or disconnection in solenoid driving circuit
25 Engine torque control signal. Short or disconnection in engine torque control signal circuit
31 Throttle sensor. Short or disconnection in input circuit
32 Vehicle speed sensor 1. No signal input to speed sensor 1 above 20km/h
33 Vehicle speed sensor 2. No signal input to speed Sensor 2 above 20km/h
34 Turbine sensor. No signal input in ranges other than N range
36 Low clutch timing solenoid. Short or disconnection in solenoid driving circuit

Phase II

11 Engine speed signal. Detects open or shorted input signal circuit.
27 ATF temperature sensor. Detects open or shorted input signal circuit.
31 Throttle position sensor. Detects open or shorted input signal circuit.
33 Front vehicle speed sensor. Detects open or shorted input signal circuit.
36 Torque converter turbine speed sensor. Detects open or shorted input signal circuit.
38 Torque control signal. Detects open or shorted input signal circuit.
45 Intake manifold pressure signal. Detects open or shorted input signal circuit.
71 Shift solenoid 1. Detects open or shorted output signal circuit.
72 Shift solenoid 2. Detects open or shorted output signal circuit.
73 Low clutch timing solenoid. Detects open or shorted output signal circuit.
74 2-4 brake timing solenoid. Detects open or shorted output signal circuit.
75 Line pressure duty solenoid. Detects open or shorted output signal circuit.
76 2-4 brake duty solenoid. Detects open or shorted output signal circuit.
77 Lock-up duty solenoid. Detects open or shorted output signal circuit.
78 SPORT shift solenoid. Detects open or shorted output signal circuit.
79 Transfer duty solenoid. Detects open or shorted output signal circuit.
86 VDC communication signal. Detects open or shorted input signal circuit.
93 Rear vehicle speed sensor. Detects open or shorted input signal circuit.

Hope this helps . . .
Luke Stroobants likes this.
plain OM is online now  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 12-29-2014, 09:42 PM
Registered User
 
Join Date: Dec 2014
Posts: 6
Feedback Score: 0 reviews
ok im a noob when it come to checking codes dont know if i counted right i had four solid blinks then 10 fast blinks either im one off on the fast ones or does the fast ones count would have costed me 109.90 at subaru just for them to run a diagnostic dont want to pay that so any help or videos posted on how to do this would be much appreciated i just erased a tps code cause im having issues with the car not wanting to shift up wanted to see if it would pop back up it will not shift automatically i can shift manually and it runs good well besides bad 02s
Luke Stroobants is offline  
post #3 of 3 (permalink) Old 01-02-2015, 11:36 AM
Registered User
 
Join Date: Oct 2009
Location: Florida West Coast
Car: 2000 Outback LTD
Posts: 4
Feedback Score: 0 reviews
I have that info from somewhere. BUT!!! I bought a $7 Bluetooth ELM 27 code reader from Ebay, and a free "Torque" app for my phone and it is SO much easier, to read and reset codes, along with the additional gauges that you can see and read.
Pugwash is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Subaru Outback - Subaru Outback Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Random Question

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Rate This Thread
Rate This Thread:



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome