MX-5 Miata L4-1597cc 1.6L DOHC (1992)
Fuel Pump Relay: Testing and Inspection
Fuel Pump Relay (Circuit Open Relay)
Perform tests in the order listed.
TEST 1 - RELAY SWITCHING FUNCTION CHECK
Switching Operation
1.
Disconnect relay from its harness connector.
2.
Apply 12 volts and ground to the relay terminals listed below and check for the 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