MZR 2.3 DISI Turbo, MZR 2.5
1. Install the manifold gauge.
2. Verify the high-pressure side reading of the manifold gauge.
3. Measure the terminal voltage of the climate control unit.
1C, 1E and 2J
4. Verify that below graph as measure the terminal voltage 2J.
5. Follow the climate control unit inspection when measure the other terminal voltage..
Terminal 1E: 1.0 V or less
Terminal 1C: Approx. 5 V (Ignition switch on)
If the each voltage is not normal, inspect the related wiring harness.
If there is any malfunction, replace the related wiring harness.
If wiring harness is normal, replace the refrigerant pressure sensor.

SKYACTIV-G 2.0
1. Install the manifold gauge.
2. Verify the high-pressure side reading of the manifold gauge.
3. Measure the terminal voltage of the PCM.
2BB, 2AX and 2AJ
4. Verify that below graph as measure the terminal voltage 2AX.
5. Follow the PCM inspection when measure the other terminal voltage..
Terminal 2BB: 1.0 V or less
Terminal 2AJ: Approx. 5 V (Ignition switch on)
If the each voltage is not normal, inspect the related wiring harness.
If there is any malfunction, replace the related wiring harness.
If wiring harness is normal, replace the refrigerant pressure sensor.

Pressure Sensor Removal/Installation [Two Step Deployment Control System]
Refrigerant Pressure Sensor Inspection [Manual Air Conditioner]Error Indications (Type A)
If you see an error indication on the
display, find the cause in the chart. If you
cannot clear the error indication, take the
vehicle to an Authorized Mazda Dealer.
Indication
Cause
Solution
CHECK
USB
USB device
malfunction
Verify that the content
...
Boost Air Temperature Sensor Inspection [Mzr 2.3 Disi Turbo]
Resistance Inspection
NOTE:
Because the boost air temperature sensor is integrated in the MAP sensor,
replacing the boost air temperature sensor includes replacement of the MAP sensor/boost
air temperature sensor.
1. Remove the battery cover..
2. Disconnect the negative batter ...
Security Setting (Type A)
If a passcode is set, the system cannot be
activated unless the passcode is input.
NOTE
Do this function only when parked. It is
too distracting to attempt while driving
and you may make too many errors to be
effective.
Passcode setting
Press the pick-up button or talk button
with a sho ...