1. Remove the variable tumble solenoid valve.
Click for full-size image
2. Inspect airflow between the ports under the following conditions.
- If not as specified, replace the variable tumble solenoid valve.
- If as specified, carry out the "Circuit Open/Short Inspection".
Click for full-size image
LF
Click for full-size image
L3
Circuit Open/Short Inspection
1. Disconnect the PCM connector.
Click for full-size image
2. Inspect the following wiring harness for open or short (continuity check).
Open circuit
- If there is no continuity, the circuit is open. Repair or replace the wiring harness.
- Variable tumble solenoid valve terminal B and PCM terminal 2I*1,2AI*2
- Variable tumble solenoid valve terminal A and main relay terminal A
Short circuit
- If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
- Variable tumble solenoid valve terminal A and body ground
- Variable tumble solenoid valve terminal B and power supply
*1 : California emission regulation applicable model and except for California emission regulation applicable model with LF MTX, L3
*2 : Except for California emission regulation applicable model with LF ATX
VARIABLE INTAKE AIR SOLENOID VALVE INSPECTION[LF. L3]
1. Remove the variable intake air solenoid valve.
Click for full-size image
2. Inspect airflow between the ports under the following conditions.
- If not as specified, replace the variable intake air solenoid valve.
- If as specified, carry out the "Circuit Open/Short Inspection".
Click for full-size image
LF
Click for full-size image
L3
Circuit Open/Short Inspection
1. Disconnect the PCM connector.
Click for full-size image
2. Inspect the following wiring harness for open or short (continuity check).
Open circuit
- If there is no continuity, the circuit is open. Repair or replace the wiring harness.
- Variable intake air solenoid valve terminal A and PCM terminal 2J*1, 2AJ*2
- Variable intake air solenoid valve terminal B and main relay terminal A
Short circuit
- If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
- Variable intake air solenoid valve terminal B and body ground
- Variable intake air solenoid valve terminal A and power supply
*1 : California emission regulation applicable model and except for California emission regulation applicable model with LF MTX, L3
*2 : Except for California emission regulation applicable model with LF ATX