Cooling Fan Relay No. 1 (Except Supra Turbo)

1. Disconnect negative battery cable. Remove cooling fan relay No. 1 from fuse/relay box. See Figure-Figure . Using an ohmmeter, ensure continuity exists between specified terminals. See Fig 1.
2. To check relay operation, connect battery voltage and ground to specified terminals of cooling fan relay No. 1. Using an ohmmeter, ensure no continuity exists between specified terminals. See Fig 1. Replace cooling fan relay No. 1 if defective.

Fig 1: Testing Cooling Fan Relay No. 1 (Except Supra Turbo)

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