Toyota 1HD-FT Repair Manual page 23

EG-l0
ENGINE ENGINE MECHANICAL
CONTINUED FROM PAGE EG-9
CD
r
Emission EeU lw
I
EGR System)
Is Iheregrounding of terminal El, Open circuit or
GRIEL
GirD
No
EOl or E02 of emission EeU or ground faulty in wire
0::'._. . " ::
'.l__
~
-
J
terminal EG of the pre-heating harness between
timer? terminal El, EO' or
~D
0 0 _ g
.000"-_
E02
of
the EeU or
- - E7,
;~ ~O2
V"
terminal EG of the
timer and body
P23602
ground.
Pre-Heating Timer (w/o EGR Systeml
Is there battery vollage to
Ves
GAEL
terminal GINO of the ECU or
),
limer (on wire harness side17
L~
=] No
Open circuit in wire harness Replace the ECU or
between terminal GINO of the timer.
GINO EG
EeU or
timer
and indicator light.
P22973
No
I
Is the lighting lime correct?
Replace tile EeU or timer.
6.5 seconds
Ves
Is there battery voltage between
No
Is intake heater relay Okay?
No Replace the intake
terminal G of the intake heater relay
(See pre-healing system in heater relay.
and body ground for 81 seconds
Starting System)
with the ignition switch ON?
y"
y"
Intake Hea~ Relay
1@1'~b
When the ignition switch is turned ON, does No Replace the ECU or
terminal GREL of the ECU or timer have
timer.
battery voltage
fOf
81 seconds?
G
---r
B
V"
pnS8B
,
9
e
Connect the water temperature
0
Open circuit in wire harness
sensor connector.
between terminal GREL of the ECU
or timer and terminal g of the intake
heater relay.
0
Open circuil or ground faulty in
wire harness between terminal e of
Inspect power supply
the intake heater relay and body
section.
ground.
EG