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Toyota Corolla Repair Manual: Inspection

1. Cooling fan relay

  1. Inspect the cooling fan relay continuity.
  1.  Using an ohmmeter, check that there is continuity between terminals 1 and 2.

    If there is no continuity, replace the relay.

  2.  Check that there is no continuity between terminals 3 and 5.

    If there is continuity, replace the relay.

  3.  Apply battery voltage across terminals 1 and 2.
  4.  Using an ohmmeter, check that there is continuity between terminals 3 and 5.

    If there is no continuity, replace the relay.

2. Cooling fan relay no.2

  1. Inspect the cooling fan relay continuity.
  1.  Using an ohmmeter, check that there is continuity between terminals 1 and 2.

    If there is no continuity, replace the relay.

  2.  Using an ohmmeter, check that there is continuity between terminals 3 and 4.

    If there is no continuity, replace the relay.

  3.  Check that there is no continuity between terminals 3 and 5.

    If there is continuity, replace the relay.

  4.  Apply battery voltage across terminals 1 and 2.
  5.  Using an ohmmeter, check that there is continuity between terminals 3 and 5.

    If there is no continuity, replace the relay.

3. Cooling fan resistor

  1.  using an ohmmeter, measure the resistance between the terminals.

    Resistance: 1.17 1.43 W at 20 c (68 f)

Onvehicle inspection
1. Check cooling fan operation with low temperature (below 83 c (181 f)) Turn the ignition switch on.  check that the cooling fan stops. Hint: if not, check the cooling fan relay and wa ...

Coolant
Replacement 1. Drain coolant Caution: to avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot, as fluid and steam can be blown out unde ...

Other materials:

Terminals of ecu
1. Inspect integration relay Disconnect the connector and check the continuity of each terminal of the disconnected connector. Standard : If the result is not as specified, the vehicles side may malfunction. Reconnect the connector and check each terminal. Standard: If th ...

Abbreviations used in this manual
...

Amplifier antenna assy
Replacement Hint: components: Remove roof headlining assy Notice: do not bend the roof headlining assy. Hint: refer to the procedure from remove roof headlining assy of roof headlining assy. Remove the related parts as long as the amplifier antenna assy can be removed. ...

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