Check PTC heater relay #1 component coil resistance
IG KEY "OFF", ENGINE "OFF".
Disconnect PTC heater relay #1.
Measure the resistance of PTC heater relay #1 component coil.
Specification : 52±5 Ω (20℃)
Is the measured resistance within the specification?
 | ▶ Go to "2. Check PTC heater relay #1 component operation" as follows. |
 | ▶ Replace PTC heater relay #1 and go to "Verification of Vehicle Repair". |
Check PTC heater relay #1 component operation
IG KEY "OFF", ENGINE "OFF".
Disconnect PTC heater relay #1.
Supplies random B+ and ground to coil sides of PTC heater relay #1. ( terminal 85, 86)
Check continuity between PTC heater relay #1 terminal 30 and terminal 87.
Specification :
When power is supplied : Continuity ( below 1.0Ω )
When power is not supplied : Discontinuity ( Infinite Ω )
Is the measured resistance within the specification?
| ▶ Go to "Verification of Vehicle Repair". |
| ▶ Replace PTC heater relay #1 and go to "Verification of Vehicle Repair". |
※ Repeat this process 2~3 times.
