Fuel Pump Circuit Troubleshooting
Turn the ignition switch to ON (II), and measure the voltage between under-dash fuse/relay box connector F (34P) terminal No. 10 and body ground within 2 seconds.
Is there battery voltage?
YES
-
Update the ECM if it does not have the latest software,
or
substitute a known-good ECM,
then recheck. If the symptom/indication goes away with a known-good ECM,
replace the original ECM.
■
NO
-
Go to
Step 31
.