Honda CRX silhouetteCRX

Fuel Supply System — Main Relay: Harness Testing

6-80prose procedure
Continued from 6-79

Main Relay

Harness Testing

  1. 1
    Keep the ignition switch in the OFF position.
  2. 2
    Disconnect the main relay connector.
  3. 3
    Check for continuity between the BLK wire ② in the connector and body ground.
  4. 4
    Attach the positive probe of voltmeter to the YEL/WHT wire ① and the negative probe to the BLK wire ②. Battery voltage should be available.
    Under-dash illustration with a magnified inset of the main relay connector showing the BLK wire (terminal 2) and the YEL/WHT wire (terminal 1).
  5. 5
    Attach the positive probe of voltmeter to the BLK/YEL wire ⑤ and the negative probe to the BLK wire ②.
    Under-dash illustration with a magnified inset of the main relay connector showing the BLK wire (terminal 2) and the BLK/YEL wire (terminal 5).
  6. 6
    Turn the ignition switch ON. Battery voltage should be available.
  7. 7
    Attach the positive probe of voltmeter to the BLU/WHT wire ④ and the negative probe to the BLK wire ②.
    Under-dash illustration with a magnified inset of the main relay connector showing the BLK wire (terminal 2) and the BLU/WHT wire (terminal 4).
  8. 8
    Turn the ignition switch to START position. Battery voltage should be available.
  9. 9
    Connect a jumper wire between the BLK/YEL wire ⑤ and YEL/BLK wire ⑦.
    Under-dash illustration with a magnified inset of the main relay connector showing a jumper wire connecting the BLK/YEL wire (terminal 5) and the YEL/BLK wire (terminal 7).
  10. 10
    Turn the ignition switch ON. The fuel pump should work.
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