MODEL: HITACHI, KOMATSU, SUMITOMO, KOBELCO, VOLVO, DOOSAN, CATERPILLAR, HYUNDAI ISUZU: 4BD1T, 4BG1T, 6BD1T, 6RB1T, 6SD1T, 6BG1T, 6WG1T,6HK1T, 4HK1T, 4JJ1T HINO: H06CT, EP100T, J05E, J08E MITSUBISHI:: 6D22T, 6D31T, 6D15T, 4D31T, 6D14T,6D22T KOMATSU: S6D95, S6D108 CUMMIN: 6BT, 6CT, S6D102, S6D105, S6D107E, S6D114, S6D125 DOOSAN: D1146, D2366, DB58 VOLVO: D8K, D4D, D4E, D12D, D5E, D6E >>Whatsapp us 011-11623216 to confirm the model and size. FREE catalogue on our website:

Share Product:


Issues with the key switch, also known as the ignition switch, can result in various problems related to starting and operating a vehicle. Here are some potential problems associated with a faulty key switch:

Failure to Start: One of the most common problems with a faulty key switch is the inability to start the vehicle. When the key is turned in the ignition, the switch is responsible for initiating the starting process by sending power to the starter motor and ignition system. If the key switch fails, it may not send the necessary signals to start the engine, resulting in no response when the key is turned.

Intermittent Starting Issues: A faulty key switch may cause intermittent starting issues, where the vehicle starts successfully sometimes but not consistently. This can be frustrating for the driver and may indicate an underlying problem with the electrical contacts or wiring within the key switch.

Stalling or Engine Cutouts: In some cases, a faulty key switch may cause the engine to stall or cut out unexpectedly while driving. This can occur if the key switch loses electrical contact while the vehicle is in motion, disrupting the operation of critical systems such as the ignition or fuel injection.

Difficulty Turning the Key: A worn or damaged key switch may make it difficult to turn the key in the ignition cylinder. This can occur due to wear on the internal components of the switch or a misalignment of the key and cylinder. Difficulty turning the key can make it challenging to start the vehicle and may require replacement of the key switch assembly.

Accessory Power Issues: The key switch is also responsible for controlling power to various accessories in the vehicle, such as the radio, lights, and power windows. A faulty key switch may result in intermittent or complete loss of power to these accessories, affecting the comfort and convenience of the vehicle's occupants.

Security System Problems: Many modern vehicles use the key switch as part of the vehicle's security system, which includes features such as an immobilizer or anti-theft system. A faulty key switch may cause issues with the security system, such as false alarms, inability to disarm the system, or failure to recognize the correct key.

Ignition Cylinder Damage: Over time, the key switch may wear out or become damaged, leading to issues with the ignition cylinder. This can result in the key becoming stuck in the ignition, difficulty removing the key, or the key breaking off inside the cylinder.

In summary, problems with the key switch can manifest as failure to start the vehicle, intermittent starting issues, stalling or engine cutouts, difficulty turning the key, accessory power issues, security system problems, and ignition cylinder damage. Proper diagnosis and repair by a qualified automotive technician are necessary to address these issues effectively and ensure reliable operation of the vehicle. 


Find Nearby Companies
Zoom in to view more information