1A-51 Engine General Information and Diagnosis:
1
8) Turn the ignition switch ON.
9) Measure the output voltage between the B/Bl wire and
ground.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe set)
Tester knob indication
Voltage (
)
ECT sensor output voltage
0.15 – 4.84 V
((+) terminal: B/Bl – (–) terminal: Ground)
Are the continuity and voltage OK?
Go to Step 2.
• B/Bl wire shorted to
ground.
• If wire is OK, go to
Step 2.
2
1) Turn the ignition switch OFF.
2) Disconnect the ECT sensor coupler.
3) Measure the ECT sensor resistance.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Resistance (
Ω
)
ECT sensor resistance
Approx. 2.45 k
Ω
at 20
°
C (68
°
F)
(Terminal – Terminal)
NOTE
Refer to “ECT Sensor Inspection in Section 1C
(Page 1C-4)” for details.
Is the resistance OK?
• B/Bl or B/Br wire
open or shorted to
ground, or poor “10”
or “29” connection.
• If wire and
connection are OK,
intermittent trouble or
faulty ECM.
• Recheck each
terminal and wire
harness for open
circuit and poor
connection.
• Replace the ECM
with a known good
one, and inspect it
again. Refer to “ECM
Removal and
Installation in Section
1C (Page 1C-1)”.
Replace the ECT
sensor with a new one.
Refer to “ECT Sensor
Inspection in Section 1C
(Page 1C-4)”.
Step
Action
Yes
No
(A)
(B)
I822H1110036-01
(A)
I822H1110037-01
Содержание VLR1800
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