Index Isuzu Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross - service repair manual 1999-2002 year
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6E1–248 RODEO Y22SE 2.2L ENGINE DRIVEABILITY AND EMISSION DTC P0404 EGR Circuit Range/Performance
Step Action Value(s) Yes No 1 Was the ”On–Board Diagnostic (OBD) System Check” — Go to Step 2 Go to Powertrain OBD System Check 2 1. Turn the ignition switch ON, with the engine OFF. Does the Actual EGR Position follow the Desired EGR 25%, 50%, 75%, 100% Go to Step 19 Go to Step 3 3 1. Turn the ignition switch ON, with the engine OFF. circuit to the EGR valve. Does the light illuminate? — Go to Step 4 Go to Step 5 4 1. Connect the test light to ground. using a Tech 2. As the command is raised, does the test light glow 25%, 50%, 75%, 100% Go to Step 6 Go to Step 7 5 Repair the open or poor connection in the EGR ground Is the action complete? — Go to Step 19 — 6 With the test light still connected to ground, probe the Is the action complete? — Go to Step 8 Go to Step 9 7 With the test light still connected to ground, again probe Does the test light illuminate? — Go to Step 10 Go to Step 11 8 Check the signal circuit for a short to voltage and repair Was a repair necessary? — Go to Step 19 Go to Step 12 9 With a Digital Voltmeter (DVM) connected to ground, Is the voltage measured near the specified value? 5 V Go to Step 13 Go to Step 14 10 Check the control circuit for a short to voltage and Was a repair necessary? — Go to Step 19 Go to Step 12 11 Connect the test light to B+ and again probe the control Does the light illuminate? — Go to Step 15 Go to Step 16 |