mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Main Relay (Computer/Fuel System) > < Symptom Related Diagnostic Procedures|Page 1829
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Fuel Pump Relay: Component Tests and General Diagnostics

Fuel Pump Control System Inspection

Fuel Pump Control System Inspection

1. Crank the engine and verify that fuel pump relay operation sound is heard.
2. If operation sound is not heard, inspect the following:

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Fuel pump relay(See RELAY INSPECTION.)

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Wiring harness and connectors (Main relay-fuel pump relay-PCM terminal 1H

Relay Inspection

RELAY INSPECTION

Relay Type

Type A

1. Verify the continuity between the relay terminals.

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If not as indicated in the table, replace the relay.

Type B

1. Verify the continuity between the relay terminals.

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If not as indicated in the table, replace the relay.

Main Relay (Computer/Fuel System) > < Symptom Related Diagnostic Procedures|Page 1829