Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 2: When the system is operating correctly, the HO2S 1 voltage should toggle above and below the bias voltage. You may need to operate the vehicle within the Freeze Frame conditions and Conditions for Setting the DTC in order to duplicate the malfunction that was detected by the PCM.
- 4: The specified value is what is measured on a correctly operating system.
DTC P0132
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Engine Controls Schematics Connector End View Reference: Powertrain Control Module Connector End Views or Engine Controls Connector End Views |
||||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 |
|
946 mV | Go to Step 4 | Go to Step 3 |
| 3 |
|
- | Go to Step 4 | Go to Intermittent Conditions |
| 4 |
|
350-550 mV | Go to Step 6 | Go to Step 5 |
| 5 | Test the HO2S 1 high signal circuit for a short to voltage. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
- | Go to Step 11 | Go to Step 8 |
| 6 | The HO2S 1 is detecting a rich condition or may be contaminated. Inspect for the following conditions:
Repair any of the above or similar engine conditions as necessary. Did you find and correct the condition? |
- | Go to Step 11 | Go to Step 7 |
| 7 | Inspect for poor connections at the harness connector of the HO2S 1 sensor. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 11 | Go to Step 9 |
| 8 | Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 11 | Go to Step 10 |
| 9 |
NOTE:
Refer to Heated Oxygen Sensor Resistance Learn Reset Notice
.
IMPORTANT:
Before replacing a contaminated HO2S determine and repair the cause of the contamination. Replace the HO2S 1. Refer to Heated Oxygen Sensor 1 Replacement
.Did you complete the replacement? |
- | Go to Step 11 | - |
| 10 | Replace the PCM. Refer to Control Module References
for replacement, setup and programming. Did you complete the replacement? |
- | Go to Step 11 | - |
| 11 |
|
- | Go to Step 2 | Go to Step 12 |
| 12 | In order to ensure that the performance of the catalyst has not been affected by the fault that set this DTC, operate the vehicle within the conditions for running and setting DTC P0420 and verify that P0420 runs and passes. Refer to DTC P0420
. Does the DTC run and pass? |
- | Go to Step 13 | Go to DTC P0420 |
| 13 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? |
- | Go to Diagnostic Trouble Code (DTC) List - Vehicle | System OK |