Mazda 2002 6 - Variable Tumble Control System (Vtcs) Shutter Valve Actuator Inspection; Variable Tumble Control Solenoid Valve Inspection

INTAKE-AIR SYSTEM
F–15
F
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See F–43 PCM REMOVAL/INSTALLATION.)
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 harness.
— VIS control solenoid valve terminal A
(harness-side) and PCM terminal 4R
— VIS control solenoid valve terminal B
(harness-side) and main relay terminal C
(harness-side)
Short circuit
• If there is continuity, the circuit is shorted. Repair
or replace the harness.
— VIS control solenoid valve terminal A (harness-side) and body GND
— VIS control solenoid valve terminal B (harness-side) and power supply
End Of Sie
VARIABLE TUMBLE CONTROL SYSTEM (VTCS) SHUTTER VALVE ACTUATOR INSPECTION
A6E391013000W07
1. Remove the air hose. (See F–10 INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
2. Disconnect the vacuum hose from the VTCS
shutter valve actuator.
3. Connect a vacuum pump to the VTCS shutter
valve actuator.
4. Apply vacuum and verify that the rod moves.
• If the rod dose not move, replace the intake
manifold.
End Of Sie
VARIABLE TUMBLE CONTROL SOLENOID VALVE INSPECTION
A6E391013000W08
1. Remove the variable tumble control solenoid valve. (See F–10 INTAKE-AIR SYSTEM REMOVAL/
INSTALLATION.)
2. Inspect airflow between the ports under the following conditions.
• If not as specified, replace the variable tumble control solenoid valve.
• If as specified, carry out the “Circuit Open/Short Inspection”.
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See F–43 PCM REMOVAL/INSTALLATION.)
A6E3910W011
Vacuum
kPa {mmHg, inHg}
Rod movement
Below –2.7 {–20, –0.7 } Starts to move
Above –34.7 {–260, –10.2 } Fully pulled
A6E3910W015
A6E3910W009
A6E3910W016