HIGH
NOTE:
Before starting the inspection, check for loose
or
poor
contact
on
the ECT sensor 2P (Black) connector and
ECM 33P (Black) connector, and recheck the OTC.
1. ECT Sensor System
Inspection
Turn the ignition switch ON.
Check the ECT sensor with the MCS.
Is
about
5
Vindicated?
YES - GO TO STEP
2.
NO - Intermittent failure
2.
ECT Sensor Inspection
Turn the ignition switch OFF.
Disconnect the ECT sensor 2P (Black) connector
(page 4-52).
Connect the ECT sensor 2P (Black) connector [1]
terminals at the wire harness side with a jumper wire
[2].
Connection: Pink/white - Green/orange
Turn the ignition switch ON.
Check the ECT sensor with the MCS.
Is about O Vindicated?
YES -
Replace the ECT sensor with a known
good one and recheck.
NO - GO TO STEP
3.
3.
ECT Sensor Open Circuit Inspection
Turn the ignition switch OFF.
Remove the jumper wire.
Disconnect the ECM 33P (Black) connector (page
4-49).
Check for continuity between the ECM 33P (Black)
connector [1] and ECT sensor 2P (Black) connector
[2]
of
the wire harness side.
TOOL:
Green/
Test probe, 2 pack
07ZAJ -RDJA
110
Connection: A18 - Pink/white
AS
-
Green/orange
Are there continuities?
YES -
Replace the ECM with a known good one
and recheck.
NO
- •
Open circuit
in
the Pink/white wire
• Open circuit
in
the Green/orange wire
orange
PGM-FI SYSTEM
[1]
Green/orange
[2]
Pink/white
(A5)
\
[1]
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