Component Inspection
1.

Check PTC heater relay #1 component coil resistance

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect PTC heater relay #1.

(3)

Measure the resistance of PTC heater relay #1 component coil.

a.

Secification : 80±5 Ω (20℃)

(4)

Is the measured resistance within the specification?

YES

a.

Go to "2. Check PTC heater relay #1 component operation" as follows.

NO

a.

Replace PTC heater relay #1 and go to "Verification of Vehicle Repair".

2.

Check PTC heater relay #1 component operation

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect PTC heater relay #1.

(3)

Supplies random B+ and ground to coil sides of PTC heater relay #1. ( terminal 85, 86)

(4)

Check continuity between PTC heater relay #1 terminal 30 and terminal 87.

a.

Secification : When power is supplied : Continuity ( below 1.0Ω )

When power is not supplied : Discontinuity ( Infinite Ω )

(5)

Is the measured resistance within the specification?

YES

a.

Go to "Verification of Vehicle Repair".

NO

a.

Replace PTC heater relay #1 and go to "Verification of Vehicle Repair".

※ Repeat this process 2~3 times.

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