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Pre-heating System On-vehicle Inspection; Pre-heating Timer Or Emissions Ecu Inspection - Toyota 1HD-FT Repair Manual

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STARTING SYSTEM - PRE-HEATING SYSTEM
PRE-HEATING SYSTEM
ON-VEHICLE INSPECTION
ST-3
--.
HINT: Refer to Diesel Electrical System Diagnosis for
inspection procedures.
(See troubleshooting in Engine Mechanical)
1.
INSPECT LIGHTING TIME OF INTAKE HEATER
INDICATOR LIGHT
Turn the ignition switch ·ON", measure the lighting
time.
ST
light lighting time: Ref., to the chert graph
2.
INSPECT AFTER GLOW
Turn the ignition switch .. OW. measure the time bat·
tery voltage is applied to terminal GREL of the pre-
heating timer or emission
Eeu.
After glow time: Refer to the chart graph
w
J
EGR System
Emission ECU
G7
EL
~!~
..
_o~l~Dl
0 0 0 _.. _ 0 0
.. .,DDUDD
"
w/o
EGR System
»
!!!
10
"
Pre·Heating Timer
\
~
Gr l
E
120
Cl
F
---
After
"
~
Glow
90
c
:E
lime
:1
~
4
'-
light
60
3
II~:~~
::l
2
U9hti"I
Q
30
-
l'
'"
"-
Time
~
!C.
=
=
::l
0
0
20
0
20
40
60
80
(4)
(32)
(58)
(1041
(140)
(176)
1' 2 "1'
Water Temperature "C(OF)
1"ll't1lI'U91.
n=
PRE-HEATING TIMER OR EMISSION Eelr
INSPECITON
1.
DISCONNECT PRE-HEATING TIMER OR EMISSION
ECU CONNECTOR(S)
LOCATION: Under the instrument panel on the pas-
senger seat.

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  • Dibakar Kundu Aug 13, 2019 04:39:
    much helf full to us,we hope will get this type of support in future.