Equus 3173 - Import Code Reader - Manual (Page 17)

Honda/Acura
CODE RETRIEVAL PROCEDURE
Chapter 3 14
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
“Honda Code Retrieval Procedures”; see page 16 for
“Acura Code Retrieval Procedures”).
2. Follow the procedures applicable to your vehicle.
■ Refer to page 18 for “ECU/Test Connector Locations”,
(Figures H4 through H9).
■ Refer to page 19 for “Code Examples” (Figures H10
through H17).
3. Refer to pages 21 and 22 for “Honda/Acura 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 20 for the “Erasing Codes” procedure.
Consult the appropriate table for your vehicle (“Honda
Erasing Procedure” or “Acura Erasing Procedure”) and
follow the procedure listed.
Honda Code Retrieval Procedures
Tool
Model Years Eng. Req? Perform the following:
Accord 84-85 1.8 (F.I. N Procedure: Access ECU (located
only) under driver’s seat) (H4). Turn ignition
on and observe LEDs on ECU for
codes.
Codes: Codes are displayed using 4
LEDs labeled 8, 4, 2, 1 (H10).
Determine codes by adding LED values.
Examples: LED 8 and LED 1 on =
code 9 (8 + 1 = 9) (H11)
LED 4 on = code 4 (4 + 0 = 4)
(H12)
No LEDs = code 0
(H13)
When more than one code is present,
codes are separated by a 2 second pause.