Knock Sensor: Service and Repair

Knock Sensor 1 (G61)

Safety precautions and work procedures for hybrid vehicles


High voltage components have hazardous voltage.

Note the following when working near high voltage components and high voltage cables:

• Cutting, deformed, and sharp edged tools or heat sources such as welding, solder, hot air and thermal glue are forbidden.

• Visually inspect the work area before working on high voltage components.

• Visually inspect the electric drive power and control electronics (JX1) , electro-drive drive motor (V141) , the electrical Air Conditioning (A/C) compressor (V470) and the high voltage cables when working in the engine compartment.

• Visually inspect the high voltage cables and the covers when working on the floor panel.

• Visually inspect the high voltage cables, electronics box, and the high voltage system maintenance connector (TW) when working in the back area of the vehicle.

• Visually inspect all potential equalization cables.

Observe the following when performing the visual inspection:

• None of the components appear to have any external damage.

• The high voltage cable insulation and the potential equalization cable insulation are not damaged.

• The high voltage cables do not abnormally deformed in any way.

• Each high voltage component must be marked with a red warning label.


Handling the high voltage cables:

• Do not stand on or place tools on the high voltage cables or their components. This may damage the insulation.

• Do not bend or kink high voltage cables as this may damage the insulation.

• The round high voltage connectors are color coded with an exterior colored ring and mechanically coded with guide or code tabs. Observe the coding when connecting the round high voltage connector in order to avoid mechanical damage to the high voltage connector.

Removing

- Remove the electrical connector - 2 - from the Knock Sensor (KS) 1 (G61).






- Remove the coolant pump with the coolant thermostat.

• The KS 1 is located below the intake manifold behind the coolant pump.

- Remove the KS 1.

Installing

- Install in reverse order of removal.

• Tightening specifications: Ignition system overview, refer to => [ Ignition System Overview ] Service and Repair