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Engine Controls - System/component Tests: Diagnosis Lexus SC I

Testing & Diagnostics 5 illustrations ~188 words

Test Procedure No. 1

  1. Continuity should exist between terminals No. 1 and 2.
  2. Continuity should not exist between terminals No. 3 and 5.
  3. Apply battery voltage across terminals No. 1 and 2. Continuity should exist between terminals No. 3 and 5.

Test Procedure No. 2

  1. Continuity should exist between terminals ST and E1, and between terminals +B and FC.
  2. Continuity should not exist between terminals +B and FP.
  3. Apply battery voltage across terminals ST and E1. Continuity should exist between terminals +B and FP.

Test Procedure No. 3

  1. Continuity should exist between terminals No. 1 and 3.
  2. Continuity should not exist between terminals No. 2 and 4.
  3. Apply battery voltage across terminals No. 1 and 3. Continuity should exist between terminals No. 2 and 4.

Test Procedure No. 4

  1. Continuity should exist between terminals No. 1 and 2.
  2. Continuity should not exist between terminals No. 3 and 4.
  3. Apply battery voltage across terminals No. 1 and 2. Continuity should exist between terminals No. 3 and 4.
Application(1) Relay TypeTest Procedure No.
EFI Main43
Starter11
(1) (Scheme 13)-21.
(1)(Scheme 13)-21.

RELAY TYPE & TEST PROCEDURE NUMBER

Scheme 13

Scheme 13
Scheme 13

Scheme 14

Scheme 14
Scheme 14

Scheme 15

Scheme 15
Scheme 15

Scheme 16

Scheme 16
Scheme 16

Scheme 17

Scheme 17
Scheme 17

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