Mazda 6 Service Manual: Variable air duct (vad) control solenoid valve inspection (l3)
1. Remove the VAD control solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
2. Inspect airflow between the ports under the following conditions.
- If not as specified, replace the VAD control solenoid valve.
- If as specified, carry out the Circuit Open/Short Inspection.
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See 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.
- VAD control solenoid valve terminal B (harness-side) and PCM terminal 4C
- VAD control solenoid valve terminal A (harness-side) and main relay terminal C (harness-side)
Short circuit
- If there is continuity, the circuit is shorted. Repair or replace the harness.
- VAD control solenoid valve terminal B (harness-side) and body GND
- VAD control solenoid valve terminal A (harness-side) and power supply
Variable air duct (vad) shutter valve inspection (l3)
1. Remove the air cleaner case. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
2. Disconnect the vacuum hose from the VAD shutter valve actuator.
3. Connect a vacuum pump to the VAD shutter valve act ...
Variable air duct (vad) check valve (one-way) inspection (l3)
1. Remove the VAD check valve (one-way). (See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION)
2. Blow through A and verify that air flows from B.
3. Blow through B and verify that air does not flow from A ...
Other materials:
Mazda 6 Service Manual: Expansion valve removal/installation
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.)
Caution
If moisture or foreign material enters the refrigeration cycle,
cooling ability will be lowered and abnormal noise will occur. Always
immediately plug open fitt ...
Mazda 6 Service Manual: Door lock timer unit inspection
1. Measure the voltage at the door lock timer unit terminals (other than
terminal 1E and 2W) as indicated below.
If not as specified, inspect the parts listed under Action.
2. Disconnect the negative battery cable.
3. Disconnect the door lock timer unit connector and inspect for continuity ...