Diagnosis Procedure
- CHECK INTAKE SENSOR POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect intake sensor connector.
- Turn ignition switch ON.
- Check voltage between intake sensor harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Intake sensor
Connector
Terminal
M64
1
Ground
5 V
Is the inspection result normal?
YES
GO TO 2 .
NO
GO TO 4 .
- CHECK INTAKE SENSOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Check continuity between intake sensor harness connector and ground.
Intake sensor
(-)
Continuity
Connector
Terminal
M64
2
Ground
Yes
Is the inspection result normal?
YES
GO TO 3 .
NO
Repair harness or connector.
- CHECK INTAKE SENSOR
Check intake sensor. Refer to Component Inspection .
Is the inspection result normal?
YES
Replace front air control. Refer to Removal and Installation .
NO
Replace intake sensor. Refer to Removal and Installation .
- CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR OPEN
- Turn ignition switch OFF.
- Disconnect front air control connector.
- Check continuity between intake sensor harness connector and front air control harness connector.
Intake sensor
Front air control
Continuity
Connector
Terminal
Connector
Terminal
M64
1
M132
22
Yes
Is the inspection result normal?
YES
GO TO 5 .
NO
Repair harness or connector.
- CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR GROUND SHORT
Check continuity between intake sensor harness connector and ground.
Intake sensor
(-)
Continuity
Connector
Terminal
M64
1
Ground
No
Is the inspection result normal?
YES
GO TO 6 .
NO
Repair harness or connector.
- CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR POWER SHORT
- Turn ignition switch ON.
- Check voltage between intake sensor harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Intake sensor
Connector
Terminal
M64
1
Ground
0 V
Is the inspection result normal?
YES
Replace front air control. Refer to Removal and Installation .
NO
Repair harness or connector.