Mazda CX-5 Service & Repair Manual: Heater Core
Purpose
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The heater core heats passing air.
Function
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A portion of the engine coolant is taken into the heater core to heat the air passing through the heater core.
Construction
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The heater core consists of a tube which passes engine coolant, and the heat radiation fin.
Operation
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The engine coolant warmed by the engine heat is sent to the heater core.
-
The air blown by the blower motor is warmed up by heat exchange when it passes through the heat radiation fin of the heater core.
Fail-safe
-
Function not equipped.
Heated Oxygen Sensor (HO2 S) Heater Control [Skyactiv G 2.0]
Outline
Based on the control of the HO2S heater, a stabilized oxygen concentration
is detected even at low exhaust temperatures, and feedback control of fuel injection
even at cold engine ...
Heater Core Inspection
1. Inspect the heater core for damage, cracks, and water leakage.
If there is any malfunction, replace the heater core.
2. Visually inspect the fins for bending.
If there is any ...
Other materials:
Accelerator Pedal Position (App) Sensor Inspection
Voltage Inspection
NOTE:
Because the APP sensor is integrated in the accelerator pedal, replacing
the APP sensor includes replacement of the accelerator pedal.
1. Connect the M-MDS to the DLC?2.
2. Switch the ignition ON (engine off or on).
3. Verify that the APP sensor output ...
PID/Data Monitor Inspection [Instrument Cluster]
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 “IC”.
3. Select the applicable PID from the PID table.
4. Verify the PID dat ...
Before Service Precaution
WARNING:
Fuel vapor is hazardous. It can very easily ignite, causing serious injury
and damage. Always keep sparks and flames away from fuel.
Fuel line spills and leakage from the pressurized fuel system are dangerous.
Fuel can ignite and cause serious injury or death and damag ...
