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P2098-DOWNSTREAM FUEL TRIM SYSTEM 2 LEAN (CONTINUED) 6. (K399) O2 SENSOR 2/2 HEATER CONTROL CIRCUIT SHORT TO GROUND Turn the ignition off. Disconnect the C3 PCM harness connector. Measure the resistance between ground and the (K399) O2 Sensor Is the resistance below 5.0 ohms? Yes >> Repair the short to ground in the (K399) O2 Sensor 2/2 Heater Control circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 7 HB ENGINE ELECTRICAL DIAGNOSTICS 9 - 831 |