Relay Box (Engine Compartment) Repair Procedures

Inspection

1. 1
   Disconnect the negative (-) battery terminal.
2. 2
   Remove the relay from the engine room relay box.
3. 3
   There should be continuity between terminals No. 30 and No. 87 when battery voltage and ground are applied to terminals No. 85 and No. 86.
4. 4
   There should be no continuity between terminals No. 30 and No. 87 when battery voltage is disconnected.

   

   

5. 5
   There should be continuity between terminals No. 30 and No. 87 when battery voltage and ground are applied to terminals No. 85 and No. 86.
6. 6
   There should be continuity between terminals No. 30 and No. 87 when the power is off.

   

   

7. 7
   There should be continuity between terminals No. 30 and No. 87 when battery voltage and ground are applied to terminals No. 85 and No. 86.
8. 8
   There should be no continuity between terminals No. 30 and No. 87 when battery voltage is disconnected.

   

   

   

9. 9
   Make sure that there is no play in the fuse holders and that the fuses are securely installed.
10. 10
    Is the rating of the fuse specified correctly for each circuit?
11. 11
    Check for blown fuses. If a fuse must be replaced, always use a new fuse of the same capacity. Always determine why the fuse blew first and fully resolve the problem before installing a new fuse.

    

Power relay (type A) Check the continuity between the terminals. A: Blower relay B: Horn relay C: Cooling fan relay (low) D: Starter relay E: Security alarm relay F: Rear window defroster relay G: ATM relay H: Windshield de-icer relay I: Cooling fan relay (high) J: A/C relay K: Fuel pump relay L: PTC heater No. 1 relay M: PTC heater No. 2 relay N: PTC heater No. 3 relay O: Fuel filter heater relay. Power relay (type B) Check the continuity between the terminals. A: Wiper relay (high) B: Wiper relay (low). Power relay (type C) Check the continuity between the terminals. A: Main relay. Fuse, Multi fuse

The multi fuse must be replaced as an assembly if only one fuse is damaged. When replacing the multi fuse, refer precisely to the "Engine Compartment - Component Location" diagram. Use the correct ratings of the multi fuses for each circuit.