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6E1–227 X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION DTC P1404 EGR Closed Valve (Cont'd) Step No Yes Value(s) Action 9 1. Ignition ON, engine OFF. on the 5 volt Reference signal circuit at the Linear Does the DVM read the following value? about 5 volts Go to Step 11 Go to Step 10 10 Check the 5 volt reference signal circuit, between the D An Open circuit D A short to ground Was the problem found? — Verify repair Go to Step 11 11 1. Ignition OFF. circuit and the 5 volt signal return (ground) circuit at 3. Ignition ON, Engine OFF. Does the DVM read the following value? about 5 volts Go to Step 13 Go to Step 12 12 Check the 5 volt signal return (ground) circuit, between D An Open circuit D A short to ground Was the problem found? — Verify repair Go to Step 15 13 1. Ignition OFF. reference signal circuit and the EGR valve position 3. Ignition ON, Engine OFF. Does the Tech 2 display the following value? 5 volts 100% Go to Step 14 Go to Step 15 14 Replace the Linear Exhaust Gas Recirculation (EGR) — — — 15 Replace the ECM. — — — |