Manual

Toyota/Lexus
CODE RETRIEVAL PROCEDURE
Chapter 5 38
CODE RETRIEVAL PROCEDURE
•
Always observe safety precautions whenever working on a
vehicle.
•
Fix any known mechanical problems before this test.
•
Warm up engine before this test.
•
Have a pencil and paper handy.
1. Locate your vehicle in the appropriate table (see below for
“Toyota Code Retrieval Procedures”; see page 40 for
“Lexus Code Retrieval Procedures”).
2. Follow the procedures applicable to your vehicle.
■ Refer to page 41 for “Diagnostic Connector Locatons”,
(Figures T6 and T7).
■ Refer to page 42 for “Code Examples” (Figures T8
through T10).
3. Refer to pages 45-47 for “Toyota/Lexus Fault Code
Definitions”. Match the retrieved Diagnostic Trouble Codes
with those listed, read the associated definition(s), and
consult the vehicle’s service manual for further evaluation.
4. Refer to page 43 for the “Erasing Codes” procedure.
Consult the appropriate table for your vehicle (“Toyota
Erasing Procedures” or “Lexus Erasing Procedures”) and
follow the procedure listed.
Toyota Code Retrieval Procedures
Tool
Model Years Eng. Req? Perform the following:
Corolla 85-86 1.6 Y Procedure: Locate round diagnostic
Pickup 85-86 2.4 connector (under hood) (T6). Plug Code
Supra 84-86 2.8 Reader into diagnostic connector. Turn
4 Runner 84-86 2.4 ignition on. Observe “Check Engine”
Van 84-89 2.0, 2.2 light for codes.
Codes: If there are no codes stored in
memory, the “Check Engine” light will
blink once every three seconds. If codes
are stored, the light will blink a number
of times equal to the code number every
three seconds. Example: Three blinks =
code 3 (T8). If more than one code is
stored, the lowest number code is dis-
played first, followed by a three second
pause, then the next highest number
code. Codes will continue to cycle (re-
peat) as long as the ignition is on and
the Code Reader is connected.