INSPECTION



HEATER OUTLET WATER TEMPERATURE SENSOR INSPECTION




When the resistance value between the heater terminals 6 and 7 is measured under the temperature conditions at 2 points or more, the resistance value shall almost satisfy the value indicated in the figure.

HEATER INLET WATER TEMPERATURE SENSOR INSPECTION




When the resistance value between the heater terminals 6 and 8 is measured under the temperature conditions at 2 points or more, the resistance value shall almost satisfy the value indicated in the figure.

CHECK ON INSULATION RESISTANCE



caution When the insulation resistance is measured, set the range of the special tool electric insulation tester (MB992355) to 500 V. When the insulation resistance is measured at the range more than 500 V, the component may be damaged.

1.Use the special tool electric insulation tester (MB992355) to measure the insulation resistance at the plug side with the range of 500 V.

Standard value:
Tester connection terminal
Standard value
1 (RMCU side connector terminal -Electric heater mounting bolt
10 MΩ or more
2 (RMCU side connector terminal) -Electric heater mounting bolt
10 MΩ or more
2.If the resistance deviates from the standard value, replace the electric heater.