Indication Of Diagnosis Monitor Code - Hino Motors HINO 155 series Workshop Manual

Indication of diagnosis monitor code (example)
When codes 32 and 21 are indicated:
0.5 second
When the system is normal
GENERAL INTRODUCTION/TROUBLE SHOOTING
2.

INDICATION OF DIAGNOSIS MONITOR CODE

(1)
NOTICE
As individual systems have different diagnosis monitor code out-
putting patterns, follow the descriptions provided for each sys-
tem.
HINT
• This figure indicates a typical indication of diagnosis monitor
codes. For details, refer to the descriptions provided for individ-
ual systems.
• If no malfunctions are detected, the "diagnosis monitor code 1"
will be indicated.
• Malfunction codes will be repeatedly output in the ascending
order regardless of present or past malfunction codes.
0.5 second
4.3 second
1.5 second
Code 32
0.3 second
HINT
• If no code is indicated (light not flashing), it is suspected that
the TC or TS terminal line is broken or the computer is faulty.
• If the check engine warning light is always on, it is suspected
that the wire harness is shorted (for example, jammed) or the
computer is faulty.
• If any meaningless code is out, the computer is suspected of
being faulty.
A diagnosis monitor code can be identified by viewing the
diagnosis monitor and the check engine light. The example
shown below represents how to identify diagnosis monitor
codes 32 and 21. Intervals between light flashings will iden-
tify a diagnosis monitor code. For the first code, the number
"3" in the ten's place of the first code will be represented by
three 0.5-second flashings, followed by an interval of 1.5 sec-
onds. Then, the light will flash twice. For the next code, after
an interval of 4.3 seconds, two flashings will be followed by
one flashing in the similar fashion to the first code. This flash-
ing pattern will be repeated. If no system malfunctions are
detected, the light will repeat a 0.3-second flashing pattern.
Code 21
The operation is repeated
Light ON
Light OFF
1–23
Light ON
Light OFF
SHTS01ZZZ0400002