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6E1–126 X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION DTC P0134 – O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) (Cont'd) Step No Yes Value(s) Action 8 1. Ignition OFF. Bank 1 HO2S 1 low circuit. 3. If the Bank 1 HO2S 1 low circuit measures over 5 W , repair open or poor connection as necessary. Was a Bank 1 HO2S 1 low circuit problem found and — Verify repair Go to Step 9 9 1. Ignition ON, engine OFF. high and low circuits (ECM side) to ground. 3. Using a Tech 2, monitor Bank 1 HO2S 1 voltage. Is Bank 1 HO2S 1 voltage approximately equal to the 10 mV Go to Step 10 Go to Step 11 10 Replace Bank 1 HO2S 1. Is the action complete? — Verify repair — 11 Replace the ECM. Is the action complete? — Verify repair — |