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P0132




DTC P0130-P0134, P013A, P013B, P013E, P013F, or P2A00

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions)provides an overview of each diagnostic category.

DTC Descriptors
DTC P0130 00
- HO2S Circuit Sensor 1

DTC P0131 00
- HO2S Circuit Low Voltage Sensor 1

DTC P0132 00
- HO2S Circuit High Voltage Sensor 1

DTC P0133 00
- HO2S Slow Response Sensor 1

DTC P0134 00
- HO2S Circuit Insufficient Activity Sensor 1

DTC P013A 00
- HO2S Slow Response Rich to Lean Sensor 2

DTC P013B 00
- HO2S Slow Response Lean to Rich Sensor 2

DTC P013E 00
- HO2S Delayed Response Rich to Lean Sensor 2

DTC P013F 00
- HO2S Delayed Response Lean to Rich Sensor 2

DTC P2A00 00
- HO2S Circuit Closed Loop Performance Sensor 1

Diagnostic Fault Information





Typical Scan Tool Data






Circuit/System Description

The heated oxygen sensors (HO2S) are used for fuel control and catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content of the exhaust stream. When the engine is started, the engine control module (ECM) operates in an open loop mode, ignoring the HO2S signal voltage while calculating the air to fuel ratio. While the engine runs, the HO2S heats up and begins to generate a voltage within a range of 0-1 275 mV. Once sufficient HO2S voltage fluctuation is observed by the ECM, closed loop is entered. The ECM uses the HO2S voltage to determine the air to fuel ratio. An HO2S voltage that increases toward 1 000 mV indicates a rich fuel mixture. An HO2S voltage that decreases toward 0 mV indicates a lean fuel mixture.

The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter closed loop earlier and the control module to calculate the air to fuel ratio sooner.

Conditions for Running the DTC

P0130 00
* DTCs P0030 00, P0130 00, P0131 00, P0132 00, P0133 00, P0134 00, P0135 00, or P2A00 00 are not set.
* The ignition is ON.
* DTC P0130 00 runs continuously when the above conditions are met for 10 s.

P0131 00
* DTCs P0030 00, P0036 00, P0132 00, P0133 00, P0134 00, P0135 00, P0137 00, P0138 00, P0139 00, P0140 00, P0141 00, P0443 00, P0496 00, P2270 00, P2271 00, P2A00 00, P2A01 00 are not set.
* The ignition is ON.
* The fuel system is in closed loop.
* DTC P0131 00 runs continuously when the above conditions are met for 2 s.

P0132 00
* DTCs P0030 00, P0130 00, P0131 00, P0133 00, P0134 00, P0135 00, P2A00 00 are not set.
* The ignition is ON.
* DTC P0132 00 runs the rich test continuously when the above conditions are met for 2 s.

P0133 00
* DTCs P0010 00, P0011 00, P0013 00, P0014 00, P0016 00, P0017 00, P0030 00, P0117 00, P0118 00, P0119 00, P0122 00, P0123 00, P0130 00, P0131 00, P0132 00, P0134 00, P0135 00, P0171 00, P0172 00, P0221 00, P0223 00, P0300 00, P0301 00, P0302 00, P0303 00, P0304 00, P0313 00, P0335 00, P0336 00, P0340 00, P0341 00, P0365 00, P0366 00, P0443 00, P0496 00, P2101 00, P2176 00, P2A00 00 are not set.
* The ignition is ON.
* The engine speed parameter is between 1 500-3 500 RPM.
* The manifold absolute pressure (MAP) is greater than 75 kPa (11 PSI).
* The engine coolant is hotter than 50.25°C (122.45°F).
* DTC P0133 00 runs continuously.

P0134 00
* DTCs P0030 00, P0130 00, P0131 00, P0132 00, P0133 00, P0134 00, P0135 00, P2A00 00 are not set.
* The engine has been running for more than 5 min.
* DTC P0134 00 runs continuously when the above conditions are met for 5 s.

P013A 00
* DTCs P0068 00, P0101 00, P0102 00, P0103 00, P0106 00, P0107 00, P0108 00, P0112 00, P0113 00, P0116 00, P0117 00, P0118 00, P0121 00, P0122 00, P0123 00, P0128 00, P013B 00, P013E 00, P013F 00, P0171 00, P0172 00, P0201 00, P0202 00, P0203 00, P0204 00, P0222 00, P0223 00, P0300 00, P1516 00, P2101 00, P2119 00, P2135 00, P2176 00, P2270 00, P2271 00 are not set.
* The system voltage is between 10-32 V.
* Engine run time is equal to or more than 40 s.
* DTCs P013E and P2270 have run and passed.
Then
* Deceleration fuel cut off is active.
* The accelerator pedal position (APP) is stable.
* The torque converter clutch (TCC) is locked.
* This DTC runs once per trip.

P013B 00 and P013F 00
* DTCs P0068 00, P0101 00, P0102 00, P0103 00, P0106 00, P0107 00, P0108 00, P0112 00, P0113 00, P0116 00, P0117 00, P0118 00, P0121 00, P0122 00, P0123 00, P0128 00, P013B 00, P013E 00, P013F 00, P0171 00, P0172 00, P0201 00, P0202 00, P0203 00, P0204 00, P0222 00, P0223 00, P0300 00, P1516 00, P2101 00, P2119 00, P2135 00, P2176 00, P2270 00, P2271 00 are not set.
* The system voltage is between 10-32 V.
* The fuel level is more than 10%.
* Engine run time is equal to or more than 40 s.
* DTCs P013A 00, P013E 00, P013F 00, P2270 00, and P2271 00 have run and passed.
* DTCs P013B 00 and P013F 00 run once per trip.

P013E 00
* DTCs P0068 00, P0101 00, P0102 00, P0103 00, P0106 00, P0107 00, P0108 00, P0112 00, P0113 00, P0116 00, P0117 00, P0118 00, P0121 00, P0122 00, P0123 00, P0128 00, P013B 00, P013E 00, P013F 00, P0171 00, P0172 00, P0201 00, P0202 00, P0203 00, P0204 00, P0222 00, P0223 00, P0300 00, P1516 00, P2101 00, P2119 00, P2135 00, P2176 00, P2270 00, P2271 00 are not set.
* The system voltage is between 10-32 V.
* The fuel level is more than 10%.
* Engine run time is equal to or more than 40 s.
* DTC P2270 has run and passed.
Then
* Deceleration fuel cut off is active.
* The APP is stable.
* The TCC is locked.
* This DTC runs once per trip.

P2A00 00
* DTCs P0030 00, P0130 00, P0131 00, P0132 00, P0133 00, P0134 00, P2297 00 are not set.
* The ignition is ON.

Conditions for Setting the DTC

P0130
* The ECM detects that the resistance of the HO2S circuit is greater than 60 kohm.
* DTC P0130 00 sets within 10 s after the above condition is met.

P0131 00
* The ECM detects that the heated oxygen sensor 1 voltage parameter is less than 24 mV.
* DTC P0131 00 sets within 2 s during the lean test when the above condition is met.

P0132 00
* The ECM detects that the heated oxygen sensor 1 voltage is more than 1 200 mV.
* DTC P0132 00 sets within 2 s when the above condition is met.

P0133 00
* The ECM detects that the heated oxygen sensor 1 rich to lean or lean to rich average response time is more than 0.1 s.
* DTC P0133 00 sets within 3 s when the above condition is met.

P013A 00
* The ECM detects that the exponentially weighted moving average (EWMA) of the normalized integral value equals 8.4 integral units.
or
* The ECM detects that the accumulated mass air flow monitored during rich-to-lean transitions between 450-150 mV is more than 28 g.

P013B 00
* The ECM detects that the EWMA of the normalized integral value equals 8.2 integral units.
or
* The ECM detects that the accumulated mass air flow monitored during lean to rich transitions between 300-600 mV is more than 130 g.

P013E 00

The ECM detects that the O2 sensor cannot achieve voltage below 450 mV within 28 g of accumulated air flow.

P013F 00

The ECM detects that the heated oxygen sensor 1 cannot achieve voltage above 300 mV within 130 g of accumulated air flow.

P0134 00
* The ECM detects that the activity of the heated oxygen sensor 1 is less than a calibrated value.
* DTC P0134 00 sets within 100 mS after the above condition is met.

P2A00 00
* The ECM detects that the heated oxygen sensor 1 is not ready after 30 s.
* DTC P2A00 00 sets immediately after the above condition is met.

Action Taken When the DTC Sets

* DTCs P0130 00, P0131 00, P0132 00, P0133 00, P013E 00, P013F 00, P0134 00, and P2A00 00 are Type B DTCs.
* DTCs P013A 00 and P013B 00 are Type A DTCs.

Conditions for Clearing the DTC

* DTCs P0130 00, P0131 00, P0132 00, P0133 00, P013E 00, P013F 00, P0134 00, and P2A00 00 are Type B DTCs.
* DTCs P013A 00 and P013B 00 are Type A DTCs.

Diagnostic Aids

* It may be necessary to disconnect the battery to clear DTC P2135 00.
* A high resistance condition on the throttle position and throttle actuator control circuits may cause a DTC to set.

Reference Information
Schematic Reference

Engine Controls Schematics ([1][2]Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector End Views By Name)
Electrical Information Reference

* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (Powertrain Diagnostic Trouble Code (DTC) Type Definitions)
Scan Tool Reference

Control Module References (Programming and Relearning)for scan tool information

Circuit/System Verification

1. Clear the DTCs with a scan tool.
2. Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the freeze frame/failure records data.

Circuit/System Testing

P0130 00, P0131 00, P0132 00, P0133 00, P013A 00, P013B 00, P013E 00, or P013F 00
1. Verify none of the following conditions exist.

* Lean or rich fuel injectors. Refer to Fuel Injector Diagnosis (Fuel Injector Diagnosis).
* Water intrusion in the B52A Heated Oxygen Sensor 1 or B52B Heated Oxygen Sensor 2 harness connector
* Low or high fuel system pressure. Refer to Fuel System Diagnosis (Fuel System Diagnosis).
* Fuel that is contaminated. Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Alcohol/Contaminants-in-Fuel Diagnosis).
* Fuel saturation of the evaporative emission (EVAP) canister
* Exhaust leaks near B52A Heated Oxygen Sensor 1 or B52B Heated Oxygen Sensor 2. Refer to Exhaust Leakage (Exhaust Leakage).
* Engine vacuum leaks
* Engine oil consumption. Refer to Oil Consumption Diagnosis (Oil Consumption Diagnosis).
* Engine coolant consumption. Refer to Loss of Coolant (Loss of Coolant).

• If you find any of the above conditions, repair as necessary.

2. If all conditions test normal, test or replace the B52A Heated Oxygen Sensor 1 or B52B Heated Oxygen Sensor 2.

P0134 00, P2A00 00
1. Ignition OFF, disconnect the appropriate B52A Heated Oxygen Sensor 1 or B52B Heated Oxygen Sensor 2.
2. Ignition ON, observe the appropriate scan tool HO2S voltage parameter. The parameter should display 1.27 V.

• If less than the specified range, test the high and low signal circuits for a short to ground. If both signal circuit test normal, replace the K20 Engine Control Module.

3. Ignition ON, test for 2.5-3.0 V between the high signal circuit terminal 2 and ground.

• If less than the specified range, test the high signal circuit for an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.
• If greater than the specified range, test the high signal circuit for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.

Note: The low signal circuit is tied to a pull-up circuit within the ECM. A voltage of 0.90-1.10 V on the low signal circuit is normal.

4. Ignition OFF, connect a 3 A fused jumper wire between the high signal circuit terminal 2 and the low signal circuit terminal 4.
5. Ignition ON, verify the scan tool appropriate HO2S parameter displays 0.0 V.

• If greater than the specified range, test the low signal circuit for an open/high resistance or for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.

6. If all circuits test normal, test or replace the appropriate B52A Heated Oxygen Sensor 1 or B52B Heated Oxygen Sensor 2.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Heated Oxygen Sensor Replacement - Sensor 1 (1.6L LDE, LXV, and 1.8L 2H0) (Heated Oxygen Sensor Replacement - Sensor 1)
* Heated Oxygen Sensor Replacement - Sensor 2 (Heated Oxygen Sensor Replacement - Sensor 2)
* Control Module References (Programming and Relearning)for ECM replacement, setup, and programming

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