Title:
SELF-DIAGNOSIS DEVICE FOR ON-VEHICLE CONTROLLER
Document Type and Number:
Japanese Patent JPS61253512
Kind Code:
A
Abstract:
PURPOSE:To discriminate accurately an abnormal device by setting and storing an identification code corresponding to each control subject device to deliver and display said identification code in a diagnosis mode and then displaying the presence of an error signal. CONSTITUTION:A diagnosis output mode is set when a test switch 24 is turned on and an identification code set and stored in a ROM is delivered. The procedure proceeds to the next step after said identification code is delivered for decision of the presence of an error code corresponding to a relevant channel. If no error code exists, a normal code is delivered to finish a routine. While an error code if exists is delivered to proceed to the next step. Furthermore it is decided whether another error exists or not. Then all error codes are delivered in order of smaller ones.
Inventors:
YAMAUCHI YASUTAKA
Application Number:
JP9521885A
Publication Date:
November 11, 1986
Filing Date:
May 02, 1985
Export Citation:
Assignee:
NIPPON DENSO CO
International Classes:
F02D45/00; F02D29/02; G01M15/00; G01M15/04; G01M17/00; G01M17/007; G05B23/02; (IPC1-7): F02D29/02; F02D45/00; G01M15/00; G01M17/00
Domestic Patent References:
| JPS5647805A | 1981-04-30 | |||
| JPS61127054U | 1986-08-09 |
Attorney, Agent or Firm:
Takehiko Suzue
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