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