Variable Intake-Air Control Operation Inspection - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
• Excludes temporary idle speed drop just after the loads are turned on.
7. Verify that the engine speed is within the specification under each load condition.
• If not as specified under each load condition, inspect the following.
- Refrigerant pressure switch (low, high) and related wiring harness (See
PRESSURE SWITCH
- Fan switch and related wiring harness (See
- PSP switch and related wiring harness (See
INSPECTION [Z6].)
Engine speed
Load condition
No load
34-42 A
*2
E/L operating
more than 42 A
P/S operating
Refrigerant pressure low
*3
A/C operating
Refrigerant pressure high
*1
:
Neutral or P position
*2 :
Generator generating current value
*3
:
A/C switch and fan switch are on.
*4
:
Refrigerant pressure switch (middle pressure) is off.
*5
:
Refrigerant pressure switch (middle pressure) is on.

Variable Intake-air Control Operation Inspection

1. Connect the WDS or equivalent to DLC-2.
2. Perform the KOEO self-test using WDS or equivalent.
3. Verify that DTC P0660 is not displayed.
• If DTC P0660 is shown, perform the DTC inspection. (See
Downloaded from
INSPECTION.)
FAN SWITCH
Engine speed (rpm)
MTX
640-740
650-750
700-800
700-800
*4
650-750
*5
700-800
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INSPECTION.)
POWER STEERING PRESSURE (PSP) SWITCH
*1
ATX
700-800
700-800
700-800
DTC P0660
- automotive repair manuals website
REFRIGERANT
[Z6].)