Equus 3120 - OBD 2&1 Tool Kit Uživatelský manuál Strana 77
- Strana / 88
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
OBD2 & 1 75
E
Toyota/Lexus OBD1 Systems
DIAGNOSTIC TROUBLE CODES / CODE RETRIEVAL PROCEDURE
If your instrument panel indicator lights do not come on when
you turn on the ignition, please refer to your vehicle's service
manual.You may have problems in the car's circuitry.It is rec-
ommended that you fix these problems before retrieving
DTCs from your vehicle’s computer.
DIAGNOSTIC TROUBLE CODES
Diagnostic Trouble Codes, or Fault Codes, can be used to identify
engine systems or components that are malfunctioning.The computer
records codes for the following two types of engine problems:
■ "Hard" Diagnostic Trouble Codes
"Hard" DTCs represent problems that are occurring now and cause the
instrument panel Malfunction Indicator Lamp (MIL) or Check Engine
light to illuminate and remain on until the failure is repaired. A DTC is
stored in the vehicle's computer memory for each fault detected.A Tool
or Scanner can be used to retrieve DTCs that are stored in the vehi-
cle's computer memory.
■ Intermittent/History DTCs
Intermittent/History DTCs are stored in the computer's memory for
problems that occur intermittently, or for problems that happened in the
past but are not currently present. Intermittent DTCs may cause the
Malfunction Indicator light to flicker or stay on until the intermittent mal-
function goes away. However, the corresponding fault code will be
stored in memory as a history DTC. If the malfunction that caused the
history DTC to set does not recur within a predetermined length of time
(usually within 40-80 ignition key start cycles), the computer will auto-
matically erase the related fault code from its memory.
CODE RETRIEVAL PROCEDURE
Never replace a part based only on the DTC definition.
Each DTC has a set of testing procedures, instructions and
flow charts that must be followed to confirm the location of
the problem.This information is found in the vehicle's service
manual. Always refer to the vehicle's service manual for
detailed testing instructions.
Retrieving and using Diagnostic Trouble Codes (DTCs)
for troubleshooting vehicle operation is only one part
of an overall diagnostic strategy.
- Table of Contents 2
- Introduction 3
- You Can Do It! 4
- Easy To Use 4
- Easy To View 4
- Easy To Define 4
- Safety Precautions 5
- About the Tool 10
- Tool Controls 11
- Preparation for Testing 16
- OBD1 SYSTEMS 21
- OBD2 SYSTEMS 21
- OBD2 Systems 22
- P 0 2 0 1 24
- Chrysler/Jeep OBD1 Systems 38
- Ford OBD1 Systems 44
- GM OBD1 Systems 67
- Toyota/Lexus OBD1 Systems 73
- Servicing DTCs 80
- Erasing DTCs 82
- Glossary 84
- 84 OBD2 & 1 86
- Warranty and Servicing 87
- Innova Electronics Corp 88
- 17291 Mt. Herrmann Street 88
- Fountain Valley, CA 92708 88
- Printed in Taiwan 88
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