Mazda CX-5 Service & Repair Manual: A/C Cut Off Control [Skyactiv G 2.0]
Outline
-
Controls the A/C operation by switching the A/C relay ON/OFF at the optimal timing according to engine operation conditions. Acceleration performance and A/C compressor reliability have been improved by controlling the A/C operation.
Block Diagram
Operation
-
The PCM stops current to the A/C relay when any of the following conditions are met:
|
Operation condition |
While A/C relay not energized |
Purpose |
|
At engine start |
Approx. 4 s |
Improved startability |
|
When engine speed is 6,700 rpm or more |
Approx. 5 s elapsed since engine speed was 6,200 rpm or less |
A/C compressor reliability assurance |
|
Accelerated |
3 to 5 s |
Acceleration from standstill/acceleration performance improvement |
|
Refrigerant pressure 3.14 MPa {32.0 kgf/cm2, 455 psi} or more |
Refrigerant pressure decreases to 2.55 MPa {26.0 kgf/cm2, 370 psi} or less |
A/C compressor reliability assurance |
|
Refrigerant pressure of 0.196 MPa {2.00 kgf/cm2, 28.4 psi} or less continues for 5 s or more |
Refrigerant pressure of 0.226 MPa {2.30 kgf/cm2, 32.8 psi} or more continues to 5 s or more |
A/C compressor reliability assurance |
|
Drive-by-wire control malfunction |
— |
Reverse driving performance assurance |
|
Panic braking determined |
— |
Load performance assurance |
|
Misfire determination |
— |
Catalytic converter protection |
|
ECT sensor malfunction |
— |
Engine protection |
|
Engine coolant temperature 113 °C {235 °F} or more |
Turns on/off repeatedly every 10 s until engine coolant temperature is less than approx. 107 °C {225 °F} |
Engine protection |
|
Engine coolant temperature 117 °C {243 °F} or more |
Until engine coolant temperature is less than 110 °C {230 °F} |
Engine protection |
A/C Compressor Removal/Installation
1. Disconnect the negative battery cable..
2. Discharge the refrigerant..
3. Remove the front under cover No.2..
4. Remove the drive belt..
5. Disconnect the connector.
6. Remove bolts A ...
A/C Unit
Outline
The A/C unit which integrates the cooling and heater units has been adopted.
Construction
The A/C unit consists of the following parts.
Operation
Air Mix Door Op ...
Other materials:
SRS Air Bag Deployment Criteria
This chart indicates the applicable SRS equipment that will deploy depending
on the type of collision.
(The illustrations are the representative cases of collisions.)
X: The SRS air bag equipment is designed to deploy in a collision.
*1 (With Driver and Front Passenger Occupant Classification ...
PID/Data Monitor Inspection [Standard Deployment Control System]
1. Connect the M-MDS to the DLC?2.
2. After the vehicle is identified, select the following items from the initialization
screen of the M-MDS.
a. Select “DataLogger”.
b. Select “Modules”.
c. Select “RCM”.
3. Select the applicable PID from the PID table.
4. Verify the PID da ...
Front Beltline Molding Removal/Installation
CAUTION:
Affix protective tape to the position shown in the figure.
1. Fully open the front door glass.
2. Insert a tape-wrapped flathead screwdriver and then detach clips A in the
direction of arrow (1) shown in the figure.
3. Pull up the front side of front beltline molding ...
