HVAC SYSTEM (HEATER, VENTILATOR AND A/C) > Relay and Fuse
INSPECTION
1. CHECK FUSE
1. Remove the fuse and inspect visually.
2. If the fuse is blown out, replace the fuse.
NOTE:
If the fuse is blown again, check the system wiring harness.
2. CHECK RELAY
1. Check the resistance between relay terminals.
• A/C relay
Terminal No. | Inspection conditions | Standard | Circuit |
1 — 2 | Always | 1 M? or more |

1 — 2
Apply battery voltage between terminals 4 and 3.
Less than 1 ?
• Blower motor relay
Terminal No. | Inspection conditions | Standard | Circuit |
1 — 4 | Always | 1 M? or more |

1 — 4
Apply battery voltage between terminals 2 and 3.
Less than 1 ?
2. Replace the relay if the inspection result is not within the standard.
Relay and fuse
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