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PGM-FI SYSTEM
4-16
3.
ECT Sensor Open Circuit Inspection
Turn the ignition switch OFF.
Remove the jumper wire.
Disconnect the ECM 33P
(Black)
connector [1).
Check the continuities between the ECM 33P
(Black)
connector
and ECT sensor 3P connector
[2]
of the wire side.
Connection
:
Yellow/blue - Yellow/blue
Green/white - Green/white
TOOL:
Test probe (2 pack)
07ZAJ-RDJA 110
Is there continuity?
YES
- Replace the ECM with a known good one
and recheck.
NO
Open circuit in Yellow/blue
wire
• Open circuit in Green/white wire
OTC 8 (TP SENSOR)
Probable cause
SENSOR UNIT
(TP SENSOR)
[2]
5V
_J
• Open circuit in Yellow/red wire between the sensor unit and ECM
• Open or short circuit in Yellow wire between the sensor unit and ECM
Open circuit in Green/white
wire
between the sensor unit and ECM
Faulty sensor unit
• Faulty ECM
OTC 8-1 (TP SENSOR LOW VOLTAGE)
1.
TP Sensor System Inspection
Turn the ignition switch ON and engine stop switch
"O".
Check the TP sensor with the MCS when the throttle fully closed.
Is about 0 Vindicated?
YES
- • Intermittent failure
• Loose or poor contact on the sensor unit 5P
connector
NO
- GO TO STEP 2.
2. Sensor Unit Power Line Inspection
Check the sensor unit power line inspection (page 4-11
).
Is the sensor unit power line normal?
YES
- GO TO STEP
3.
NO
- Replace or repair the abnormal
circuit.
Q .....___
G/W
[1]
ECM
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