Operation Test
Carry out the EGR Control Inspection. (See EGR Control System Inspection.
Resistance Inspection
Note
1. Disconnect the negative battery cable.
2. Inspect resistance of the EGR valve coils.
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
- EGR valve terminal E (harness-side) and PCM terminal 4E
- EGR valve terminal A (harness-side) and PCM terminal 4H
- EGR valve terminal B (harness-side) and PCM terminal 4K
- EGR valve terminal F (harness-side) and PCM terminal 4N
- EGR valve terminal C or D (harness-side) and main relay terminal C (harness-side)
Short circuit
- EGR valve terminal E (harness-side) and GND
- EGR valve terminal A (harness-side) and GND
- EGR valve terminal B (harness-side) and GND
- EGR valve terminal F (harness-side) and GND
- EGR valve terminal C or D (harness-side) and power supply
3. Remove the EGR valve, and inspect for any damage or clogging.
Mazda 6 Service Manual: Front upper arm inspection
1. Remove the upper arm from the vehicle.
2. Inspect for damage, cracks, and bending.
3. Inspect the ball joint rotation torque.
(1) Rotate the ball joint five times.
(2) Measure the rotation torque using a suitable allen socket and a
torque wrench.
If not within the specification ...
Mazda 6 Service Manual: Supplier identification procedure
Note
When asking the supplier (service center) for repair or
replacement, verify which supplier the module belongs to and enter in the
Audio Repair Order Form.
Identification With Printed Numbers/Label
1. Remove the audio unit.
2. Verify the supplier name written on the label attached ...