Mazda CX-5 Service & Repair Manual: Warm Up Three Way Catalytic Converter (Wu Twc) Inspection
CAUTION:
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Perform the following procedures, DTC P0421:00 is indicated only.
1. Connect the M-MDS to the DLC-2.
2. Start the engine and warm it up to normal operating temperature.
3. Turn off the engine.
4. Verify that the engine compression is within the specification..
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If the compression pressure is not within the specification, repair or replace the malfunctioning part.
5. Drive the vehicle for 10 min at
65—96 km/h {40—60 mph}
to allow the WU-TWC to reach normal operating temperature.
6. Stop the vehicle and leave it in a safe space.
7. Access Test ID 10:21:80 on the “Diagnostic Monitoring Test Result” function.
8. Verify that the test result is within specification indicated on the M-MDS.
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If it is not as specified, replace the exhaust manifold..
Rollover Valve
Purpose, Function
Prevents fuel from flowing into the evaporative gas passage during sudden
cornering or vehicle rollover.
Construction
The rollover valve is built into the fuel ...
Brake Fluid Pressure Sensor
Purpose/Function
The brake fluid pressure sensor detects the fluid pressure from the master
cylinder and transmits it to the DSC HU/CM.
Construction
The brake fluid pressure sen ...
Other materials:
Front Drive Shaft
Purpose, Function
A bell joint has been adopted for the wheel-side constant velocity joint,
reducing vibration and noise.
A tripod joint have been adopted for the differential side constant velocity
joint to reduce booming noise during high-speed driving and vibration when idlin ...
Odometer/Tripmeter
Purpose
The odometer/tripmeter notifies the user of the total travel distance or
the traveled distance over a specific interval.
Function
The instrument cluster calculates the traveled distance based on the traveled
distance signal from the PCM and displays it.
The ...
Conventional Brake System
Outline
A brake pedal with an intrusion minimizing mechanism has been adopted. As
a result, driver safety has been improved.
A small diameter long-stroke type master cylinder has been adopted, improving
operability and response.
A vacuum pump has been adopted, improving ...
