Toyota Automatic Transmission - Auto Repair Codes

Scan Tool for Codes and Live Data for your Toyota Transmission from $199 USD

The information below may apply to Toyota Echo, Prado and many other models

Step 4

Toyota Trans Code Reading

Connector Diagram

Note: You may need the Rennacs™ UniPlug and UniPlug specific software.
Click here for more info.

Auto Repair Manual - How to read codes (No Special Tools Needed)

1 Drive vehicle until transmission reaches operating temperature.

2 Stop vehicle, place in park or neutral and turn ignition OFF.

3 Link terminals with your own wire link, (Click here for details) , as shown in the diagram.

4 Ensure O/D button is depressed (light OFF).

5 Turn ignition ON. The Transmission light should now be flashing.

6 Read codes as described in the Code Format Description below.

7 Press the continue button to enter the code numbers and get the code description.

Code Format Diagram

Code Format Description

• Each code is made up of two series of flashes.

• The first series indicates the 'tens' digit.

• The second series indicates the 'ones' digit.

• A long pause separates each code.

• A shorter pause separates the 'tens' and 'ones'.

• No Fault Codes indicated by short repeating flashes.

• Code Format Diagram shows code No. 32.

To move to the next screen click on the Continue button

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Note on Example Model(s): Toyota Echo, Prado
The example model(s) shown, Toyota Echo, Prado for this auto repair service are only an indication to help you. There may be many other models that apply to this connector. Click above link to see the complete vehicle coverage list.