If not as specified, replace the variable tumble solenoid valve.
If as specified, carry out the “Circuit Open/Short Inspection”.
NOTE:
Perform the following inspection only when directed.
1. Remove the battery cover.
2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF].)
3. Remove the variable tumble solenoid valve. (See VARIABLE TUMBLE SOLENOID VALVE REMOVAL/INSTALLATION [LF].)
4. 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”.
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [LF].)
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
Variable tumble solenoid valve terminal A and main relay
Short circuit
If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
Variable tumble solenoid valve terminal B and power supply
Variable tumble solenoid valve terminal B and body ground
Variable tumble solenoid valve terminal A and body ground