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P0032-O2 SENSOR 1/1 HEATER CIRCUIT HIGH (CONTINUED) 2. O2 HEATER ELEMENT Turn the ignition off. Disconnect the O2 Sensor harness connector. Measure the resistance of the O2 Heater element at the O2 Sensor On a four O2 Sensor system the resistance value for 1/1 and 2/1 O2 NOTE: The resistance value will increase with warmer tempera- Is the resistance within the listed specifications? Yes >> Go To 3 No >> Replace the O2 Sensor. Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 3. (K342) FUSED ASD RELAY OUTPUT CIRCUIT OPEN Ignition on, engine not running. With the scan tool, actuate the O2 Heater Test. Using a 12-volt test light connected to ground, probe the (K342) Fused Did the test light illuminate brightly? Yes >> Go To 4 No >> Repair the open or short to ground in the (K342) Fused ASD Relay Output circuit. Inspect the related fuse and Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 NOTE: Stop the actuation before continuing. 9 - 1498 ENGINE - ELECTRICAL DIAGNOSTICS - SRT-10 DR/DH |