mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Fuel Pump Relay|Specifications|Page 2838 > < Fuel Pump Relay|Specifications|Page 2836
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Fuel Pump Relay: Testing and Inspection

Fuel Pump Relay (Circuit Open Relay)

^ Perform tests in order listed.

TEST 1 - RELAY SWITCHING FUNCTION CHECK

1.

Disconnect relay from its harness connector.

2.

Apply 12 volts and ground toe relay terminals listed below and check for correct result.

 

12V/Grnd   -  CORRECT RESULT
"STA"/"E1"

-

Energizes relay, connects terminals "B" and "Fp" (continuity).

"B"/"Fc" -

Energizes relay, 12 volts becomes available at terminal Fp.

 

^ If results are not correct as described, replace relay.

TEST 2 - RELAY RESISTANCE CHECK

Resistance Check

 

^ Check resistance between the following relay terminals.

 

"STA"/"E1" -

Resistance...21 - 43 ohms

"B"/"Fc"

-

Resistance...109 - 226 ohms

"B"/"Fp"

-

Resistance...infinite (no continuity)

 

^ If results are not correct as described, replace relay.

 
TEST 3 - RELAY CIRCUIT (WIRING) CHECK

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