2.
Probe(+) : Fuel pump relay NO3.
Probe(-) : Fuel pump relay NO5.
a.
Specification: 20℃(68℉) : Approximately 80Ω
Measure resistance in fuel pump relay signal circuit.
Probe(+) : Fuel pump relay NO3.
Probe(-) : Fuel pump relay NO5.
Specification: 20℃(68℉) : Approximately 80Ω
Does each resistance indicate continuity circuit?
YES
Temporarily install a known good ECM and check for proper operation
If a problem is corrected, replace ECM
NO
Open in fuel pump relay circuit
Repair as necessary and go to "Verification of Vehicle Repair"
