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

Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See
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

1. Remove the air hose. (See
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.
Vacuum
kPa {mmHg, inHg}
Below –2.7 {–20, –0.7 }
Above –34.7 {–260, –10.2 }
End Of Sie

VARIABLE TUMBLE CONTROL SOLENOID VALVE INSPECTION

1. Remove the variable tumble control solenoid valve. (See
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
INTAKE-AIR SYSTEM
F–43 PCM REMOVAL/INSTALLATION.)
F–10 INTAKE-AIR SYSTEM
Rod movement
Starts to move
Fully pulled
A6E3910W009
F–43 PCM REMOVAL/INSTALLATION.)
REMOVAL/INSTALLATION.)
F–10 INTAKE-AIR SYSTEM REMOVAL/
F
A6E3910W011
A6E391013000W07
A6E3910W015
A6E391013000W08
A6E3910W016
F–15