DTC Troubleshooting: P0132 (1-2)

DTC P0132 (1-2):  Primary HO2S (Sensor 1) Circuit High Voltage

1.Reset the ECM/PCM.

2.Start the engine. Hold the engine at 3,000 rpm (min-1) with no load (in Park or neutral) until the radiator fan comes on.

3.Check the primary HO2S (Sensor 1) output voltage with the scan tool.

Does the voltage stay at 0.9 V or more?


YES - Go to 4.


NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the  primary HO2S (Sensor 1) and at the  ECM/ PCM.n


4.Turn the ignition switch OFF.

5.Disconnect the primary HO2S (Sensor 1) 4P connector.

6.Connect primary HO2S (Sensor 1) 4P connector terminals No. 1 and No. 2 with a jumper wire.

 

7.Turn the ignition switch ON (II).

8.Check the primary HO2S (Sensor 1) output voltage with the scan tool.

Is there 0.9 V or more?


YES - Go to 9.


NO - Replace the  primary HO2S (Sensor 1).n

9.Turn the ignition switch OFF.

10.Connect ECM/PCM connector terminals A6 and E4 with a jumper wire.

 

11.Turn the ignition switch ON (II).

12.Check the primary HO2S (Sensor 1) output voltage with the scan tool.

Is there 0.9 V or more?


YES - Substitute a known-good ECM/PCM and recheck. If symptom/indication goes away, replace the original  ECM/ PCM.n


NO - Repair open in the wire between the  ECM/ PCM (A6, E4) and the  primary HO2S (Sensor 1).n