DTC P0130 (LPL or LPV)
Diagnostic Instructions
DTC Descriptor
| DTC P0130 00: HO2S Circuit Closed Loop
Performance Sensor 1 |
Diagnostic Fault Information
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
Heater Voltage Supply
|
P0135 00
|
P0135 00, P2243 00
|
P0135 00
|
P0135 00
|
Reference Voltage (Signal)
|
P0131 02, P0131 03
|
P0131 02, P0131 03
|
P0132 01, P2231 07
|
P0130 00, P0133 00, P0134 00
|
Heater Low Control
|
-
|
P0135 00, P2243 00
|
P0135 00
|
P0135 00
|
Low Reference (Ground)
|
P0131 02, P0131 03
|
P0131 02, P0131 03
|
P0131 02, P0131 03
|
-
|
|
| |
Typical Scan Tool Data
HO2S Bank 1 Sensor 1
HO2S Sensor Voltage Circuits
|
Normal Range
|
Short to Ground
|
Open
|
Short to Voltage
|
HO2S High Signal
|
0-1 000 mV
|
0-90 mV
|
350-550 mV
|
Approximately 1 100 mV
|
HO2S Low Signal
|
0-1 000 mV
|
0-1 000 mV
|
0-1 000 mV
|
0-1 100 mV
|
|
| |
Circuit/System Description
The wide band heated oxygen sensor (HO2S) measures the amount of
oxygen in the exhaust stream more quickly and accurately than the
switching style HO2S. The wide band sensor consists of an oxygen
sensing cell, an oxygen pumping cell, and a heater. The exhaust gas
sample passes through a diffusion gap between the sensing cell and
the pumping cell. The engine control module (ECM) supplies a signal
voltage to the HO2S and uses this voltage as a reference to the
amount of oxygen in the exhaust system. An electronic circuit
within the ECM controls the pump current through the oxygen pumping
cell in order to maintain a constant signal voltage. The ECM
monitors the voltage variation on the signal circuit and attempts
to keep the voltage constant by increasing or decreasing the amount
of current flow or reversing the direction of the current flow to
the pumping cell. By measuring the direction and amount of current
required to maintain the signal voltage, the ECM can determine the
concentration of oxygen in the exhaust. The signal voltage is
displayed as a lambda value. A lambda value of 1 is equal to a
stoichiometric air fuel ratio of 60:1. Under normal operating
conditions, the lambda value will remain around 1. When the system
is lean, the oxygen level will be high and the lambda value will be
high, or more than 1. When the system is rich, the oxygen level is
low and the lambda value will be low, or less than 1. The ECM uses
this information to maintain the proper air/fuel ratio.
Conditions for Running the DTC
| • |
The system voltage is between
10-18 V. |
| • |
The scan tool special
functions are not active |
| • |
The Throttle Position
Indicated Angle parameter is between 3-90%. |
| • |
The Loop Status parameter is
closed. |
| • |
The traction control is not
active. |
| • |
The above conditions must be
met for at least 5 s. |
Conditions for Setting the DTC
P0131
| • |
The ECM detects that the HO2S
1 signal voltage is not plausible for more than 2 s. |
| • |
This diagnostic runs
continuously. |
Action Taken When the DTC Sets
DTC P0130 is a Type C DTC.
Conditions for Clearing the DTC
DTC P0130 is a Type C DTC.
Reference Information
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
| 1. |
Clear the DTCs with a scan
tool. |
| 2. |
Operate the vehicle within the
conditions for running and setting the DTC. The DTC should not
set. |
| 3. |
Operate the vehicle within the
Conditions for Running the DTC. You may also operate the vehicle
within the conditions that you observed from the Freeze
Frame/Failure Records data. |
Circuit/System Testing
Note: All modules must be
powered down or misdiagnosis may result.
| 1. |
Ignition OFF, disconnect the
scan tool and wait 60 s to ensure all modules are powered
down. |
| 2. |
Disconnect the harness
connector at the B52 Heated Oxygen Sensor. |
| 3. |
Ignition ON, verify the scan
tool HO2S parameter is approximately 450 mV. |
| ⇒ |
If more than the specified value, test the signal
circuit for a short to voltage. If the circuit tests normal,
replace the K20 Engine Control Module. |
| ⇒ |
If less than the specified value, test the signal
circuit for a short to ground. If the circuit tests normal, replace
the K20 Engine Control Module. |
| 4. |
Ignition ON, install a 3 A
fused jumper wire at the B52 Heated Oxygen Sensor high signal
circuit terminal 3. Toggle the jumper wire between the B52 Heated
Oxygen Sensor low signal circuit terminal 4 and the battery. Verify
the appropriate scan tool HO2S parameter toggles between 0 mV and
approximately 1 000 mV. |
| ⇒ |
If the appropriate scan tool HO2S parameter does
not toggle correctly, test the HO2S high signal circuit for an
open/high resistance. If the circuits test normal, replace the K20
Engine Control Module. |
| 5. |
If all circuits test normal,
replace the B52 Heated Oxygen Sensor. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
|
