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Engine - Intake-Air System (Aj): Other Mazda 6 GH

Mechanical 7 illustrations ~340 words

Open circuit

  1. If there is no continuity, there is an open circuit. Repair or replace the harness. Throttle actuator terminal B and PCM terminal 2A Throttle actuator terminal A and PCM terminal 2B

Short circuit

  1. If there is continuity, there is a short circuit. Repair or replace the harness. Throttle actuator terminal B and power supply Throttle actuator terminal B and body ground Throttle actuator terminal A and power supply Throttle actuator terminal A and body ground

Scheme 285

Scheme 285: VARIABLE AIR DUCT (VAD) CONTROL SOLENOID VALVE INSPECTION [AJ]
Scheme 285: VARIABLE AIR DUCT (VAD) CONTROL SOLENOID VALVE INSPECTION [AJ]

Scheme 286

Scheme 286
Scheme 286
  1. Remove the VAD control solenoid valve. (See «INTAKE AIR SYSTEM REMOVAL/INSTALLATION [AJ]»(ref-288770-S05460329182008062500000) ).
  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".

Scheme 287

Scheme 287: Circuit Open/Short Inspection
Scheme 287: Circuit Open/Short Inspection
  1. Disconnect the PCM connector. (See «PCM REMOVAL/INSTALLATION [AJ]»(ref-288754-S42604058742008062500000) ).
  2. Inspect the following wiring harness for open or short circuit (continuity check).
  1. If there is no continuity, there is an open circuit. Repair or replace the harness. VAD control solenoid valve terminal B and PCM terminal 1BB VAD control solenoid valve terminal A and main relay terminal C
  1. If there is continuity, there is a short circuit. Repair or replace the harness. VAD control solenoid valve terminal B and body ground VAD control solenoid valve terminal A and power supply

Scheme 288

Scheme 288: VARIABLE AIR DUCT (VAD) SHUTTER VALVE INSPECTION [AJ]
Scheme 288: VARIABLE AIR DUCT (VAD) SHUTTER VALVE INSPECTION [AJ]
  1. Remove the air cleaner case. (See «INTAKE AIR SYSTEM REMOVAL/INSTALLATION [AJ]»(ref-288770-S05460329182008062500000) ).
  2. Disconnect the vacuum hose from the VAD shutter valve actuator.
  3. Connect a vacuum pump to the VAD shutter valve actuator.
  4. Apply vacuum and verify that the rod moves. If the rod does not move, replace the air cleaner case.
Vacuum kPa {mmHg, inHg}Rod movement
Below-10 {-75,-3.0}Starts to move
Above -35 {-263, -10.4}Fully pulled

VACUUM SPECIFICATIONS

Scheme 289

Scheme 289
Scheme 289

Scheme 290

Scheme 290: VARIABLE AIR DUCT (VAD) CHECK VALVE (ONE-WAY) INSPECTION [AJ]
Scheme 290: VARIABLE AIR DUCT (VAD) CHECK VALVE (ONE-WAY) INSPECTION [AJ]
  1. Remove the VAD check valve (one-way). (See «INTAKE AIR SYSTEM REMOVAL/INSTALLATION [AJ]»(ref-288770-S05460329182008062500000) ).
  2. Blow through A and verify that air flows from B.
  3. Blow through B and verify that air does not flow from A. If not as specified, replace the VAD check valve (one-way).

Scheme 291

Scheme 291: ACCELERATOR PEDAL REMOVAL/INSTALLATION [AJ]
Scheme 291: ACCELERATOR PEDAL REMOVAL/INSTALLATION [AJ]
  1. Remove in the order indicated in the table.
  2. Install in the reverse order of removal.

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