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Author archives: Denso

Denso

Website: http://www.densoautoparts.com

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    Cabin air filters from Denso

    Although it is usually very difficult to visually assess the level of pollution in the atmosphere, the subject is of major importance globally, as an increasing number of governments around the world measure air quality and many have ‘low’ or ‘ultra-low’ emissions zones in and around major cities to try and reduce the amount of …
    February
    10
    2025

    Denso adds two further air conditioning videos

    As part of its quest to further educate technicians to correctly diagnose problems within the air conditioning (AC) system, leading original equipment manufacturer and system supplier, Denso’s Aftermarket Division, has produced two more instructional videos.
    June
    13
    2024

    New Denso video explains the engine management system

    Further endorsing its long held position of providing both professional technicians and vehicle owners with useful technical information, Denso, a leading original equipment (OE) component manufacturer, has produced a new YouTube video (below) highlighting the function of the engine management system (EMS). This latest video presents an overview of what the engine management system does, …
    May
    20
    2024

    Poor Cooling Performance in a Vehicle With Dual A/C

    CONDITION: Poor cooling performance in a vehicle with a dual (front/rear) A/C system. The system uses a joint type expansion valve* in the rear cooling unit, with no magnetic valve. The compressor has been confirmed to be ok, and the front expansion valve was replaced recently. CAUSE: The thermosensitive tube of the rear expansion valve …
    October
    20
    2022

    Poor Cooling Performance in a Vehicle With Dual A/C

    CONDITION: Poor cooling performance in a vehicle with a dual (front/rear) A/C system. The system uses a joint type expansion valve* in the rear cooling unit, with no magnetic valve. The compressor has been confirmed to be ok, and the front expansion valve was replaced recently. CAUSE: The thermosensitive tube of the rear expansion valve …
    September
    29
    2022

    Starter System Diagnosis

    The following general information has been assembled as a guide for starter circuit diagnosis. Refer to the appropriate Original Equipment Manufacturer’s service manual for specific information pertaining to starting system diagnostic procedures and safety precautions for your vehicle. Bench testing If a starter test bench is available, follow the procedures found in the bench tester’s …
    September
    20
    2022

    Cabin Air Filter Installation Precaution

    CONDITION: Field reports indicate the vehicle air conditioning system uses only outside air, even if the recirculation mode is engaged or the recirculation mode doesn’t operate at all. CAUSE: It is most likely that the vehicle cabin air filter was replaced with the air blend door in the ‘Fresh Mode’ or the blower assembly door …
    August
    26
    2022

    Denso focuses on air conditioning

    Denso is a leading original equipment (OE) manufacturer and system supplier to vehicle manufacturers (VMs) globally and a pioneer in the design and development of air conditioning (AC) systems. Ensuring these systems are functioning correctly is an important responsibility for workshops and, particularly as the weather gets warmer, both a comfort and safety benefit for …
    August
    5
    2022

    DO-IT-YOURSELF (DIY) SERVICE PRODUCES DTC P0135. WRONG PART INSTALLED

    CONDITION: A vehicle owner living in Portland, Oregon performs a DIY maintenance on his 4 cylinder Camry, including spark plugs and universal oxygen sensors. After the repair the check engine light was illuminated. The vehicle was then driven to a professional repair facility. The service technician defined the check engine light as a Diagnostic Trouble …
    July
    18
    2022

    A/C CLUTCH INOPERATIVE AND A/C LIGHT FLASHING

    CONDITION: The vehicle A/C is inoperative, compressor clutch will not engage and A/C light is flashing. CAUSE: The magnetic clutch relay is disengaging, causing the clutch to disengage and the A/C light to flash. CORRECTION: Toyota has developed a new magnetic clutch relay for this application*. Original RelayRevised Relay  Toyota P/N = 90987-02022Toyota P/N = …
    June
    3
    2022