Exhaust System
- Specifications
- Description & Operation
- Diagnosis & Testing
- Special Service Tools
- Catalyst Monitoring
- Oxygen Sensors (O2) - Bank 1(A)
- DTC P0131 O2 sensor circuit low voltage (Bank 1 sensor 1)
- DTC P0132 O2 sensor circuit high voltage (Bank 1 sensor 1)
- DTC P0133 O2 sensor circuit slow response (Bank 1 sensor 1)
- DTC P0135 O2 sensor heater circuit malfunction (Bank 1 sensor 1)
- DTC P0137 O2 sensor circuit low voltage (Bank 1 sensor 2)
- DTC P0138 O2 sensor circuit high voltage (Bank 1 sensor 2)
- DTC P0140 O2 sensor circuit no activity detected (Bank 1 sensor 2)
- Oxygen Sensors (O2) - Bank 2 (B)
- DTC P0151 O2 sensor circuit low voltage (Bank 2 sensor 1)
- DTC P0152 O2 sensor circuit high voltage (Bank 2 sensor 1)
- DTC P0153 O2 sensor circuit slow response (Bank 2 sensor 1)
- DTC P0155 O2 sensor heater circuit malfunction (Bank 2 sensor 1)
- DTC P0157 O2 sensor circuit low voltage (Bank 2 sensor 2)
- DTC P0158 O2 sensor circuit high voltage (Bank 2 sensor 2)
- DTC P0160 O2 sensor circuit no activity detected (Bank 2 sensor 2)
- DTC P0430 Catalyst system efficiency below threshold (bank 2)
- Pinpoint Test A: P0131, P0132, P0135
- A1: Retrieve DTCS
- A2: Check O2 Sensor Heater Continuity
- A3: Check For O2 Sensor Failure
- A4: Check For O2 Sensor Failure
- A5: Check For O2 Sensor Failure
- A6: Stop
- A7: Heated O2 Sensor Short Circuit To Ground
- A8: Stop
- A9: Signal Ground 1 Continuity
- A10: Signal Ground 2 Continuity
- A11: Stop
- A12: Check For Heated O2 Sensor Continuity
- A13: Heated O2 Sensor Screen Ground Continuity
- A14: Check For Short To B+
- A15: Check For Short To B+
- A16: Check For Short To B+ At O2 Sensor Heater
- A17: Check B+ At O2 Sensor Heater Circuit
- A18: End
- Pinpoint Test B: P0133
- B1: Retrieve DTCS
- B2: Check For Low Exhaust Temperature
- B3: Check For O2 Sensor Heater Continuity
- B4: Check For O2 Sensor Failure
- B5: Check For O2 Sensor Failure
- B6: Check For O2 Sensor Failure
- B7: Check For O2 Sensor Failure
- B8: Stop
- B9: Heated O2 Sensor Short Circuit To Ground
- B10: Stop
- B11: Signal Ground 1 Continuity
- B12: Signal Ground 2 Continuity
- B13: Check For Heated O2 Sensor Continuity
- B14: Heated O2 Sensor Screen Ground Continuity
- B15: Check For Short To B+
- B16: Check For Short To B+
- B17: Check For Short To B+ At O2 Sensor Heater
- B18: Check B+ At O2 Sensor Heater Circuit
- B19: End
- Pinpoint Test C: P0137, P0138
- C1: Retrieve DTCS
- C2: Check For O2 Sensor Failure
- C3: Check For O2 Sensor Failure
- C4: Check For O2 Sensor Failure
- C5: Check For O2 Sensor Failure
- C6: Stop
- C7: Check For O2 Sensor Continuity
- C8: O2 Sensor Screen Ground Continuity
- C9: O2 Sensor Short Circuit To Ground
- C10: Stop
- C11: Signal Ground 1 Continuity
- C12: Signal Ground 2 Continuity
- C13: Stop
- C14: Check For O2 Sensor Continuity
- C15: O2 Sensor Screen Ground Continuity
- C16: Check For Short To B+
- C17: Check For Short To B+
- C18: Check Harness Short To Ground
- C19: Check Harness Short Core To Core
- C20: End
- Pinpoint Test D: P0140
- D1: Retrieve DTCS
- D2: Check For Low Exhaust Temperature
- D3: Check For O2 Sensor Failure
- D4: Check For O2 Sensor Failure
- D5: Check For O2 Sensor Failure
- D6: Check For O2 Sensor Failure
- D7: Stop
- D8: Check For O2 Sensor Continuity
- D9: O2 Sensor Screen Ground Continuity
- D10: O2 Sensor Short Circuit To Ground
- D11: Stop
- D12: Signal Ground 1 Continuity
- D13: Signal Ground 2 Continuity
- D14: Stop
- D15: Check For O2 Sensor Continuity
- D16: O2 Sensor Screen Ground Continuity
- D17: Check For Short To B+
- D18: Check For Short To B+
- D19: Check Harness Short To Ground
- D20: Check Harness Short Core To Core
- D21: End
- Pinpoint Test E: P0151, P0152, P0155
- E1: Retrieve DTCS
- E2: Check O2 Sensor Heater Continuity
- E3: Check For O2 Sensor Failure
- E4: Check For O2 Sensor Failure
- E5: Check For O2 Sensor Failure
- E6: Stop
- E7: Heated O2 Sensor Short Circuit To Ground
- E8: Stop
- E9: Signal Ground 1 Continuity
- E10: Signal Ground 2 Continuity
- E11: Stop
- E12: Check For Heated O2 Sensor Continuity
- E13: Heated O2 Sensor Screen Ground Continuity
- E14: Check For Short To B+
- E15: Check For Short To B+
- E16: Check For Short To B+ At O2 Sensor Heater
- E17: Check B+ At O2 Sensor Heater Circuit
- E18: End
- Pinpoint Test F: P0153
- F1: Retrieve DTCS
- F2: Check For Low Exhaust Temperature
- F3: Check For O2 Sensor Heater Continuity
- F4: Check For O2 Sensor Failure
- F5: Check For O2 Sensor Failure
- F6: Check For O2 Sensor Failure
- F7: Check For O2 Sensor Failure
- F8: Stop
- F9: Heated O2 Sensor Short Circuit To Ground
- F10: Stop
- F11: Signal Ground 1 Continuity
- F12: Signal Ground 2 Continuity
- F13: Check For Heated O2 Sensor Continuity
- F14: Heated O2 Sensor Screen Ground Continuity
- F15: Check For Short To B+
- F16: Check For Short To B+
- F17: Check For Short To B+ At O2 Sensor Heater
- F18: Check B+ At O2 Sensor Heater Circuit
- F19: End
- Pinpoint Test G: P0157, P0158
- G1: Retrieve DTCS
- G2: Check For O2 Sensor Failure
- G3: Check For O2 Sensor Failure
- G4: Check For O2 Sensor Failure
- G5: Check For O2 Sensor Failure
- G6: Stop
- G7: Check For O2 Sensor Continuity
- G8: O2 Sensor Screen Ground Continuity
- G9: O2 Sensor Short Circuit To Ground
- G10: Stop
- G11: Signal Ground 1 Continuity
- G12: Signal Ground 2 Continuity
- G13: Stop
- G14: Check For O2 Sensor Continuity
- G15: O2 Sensor Screen Ground Continuity
- G16: Check For Short To B+
- G17: Check For Short To B+
- G18: Check Harness Short To Ground
- G19: Check Harness Short Core To Core
- G20: End
- Pinpoint Test H: P0160
- H1: Retrieve DTCS
- H2: Check For Low Exhaust Temperature
- H3: Check For O2 Sensor Failure
- H4: Check For O2 Sensor Failure
- H5: Check For O2 Sensor Failure
- H6: Check For O2 Sensor Failure
- H7: Stop
- H8: Check For O2 Sensor Continuity
- H9: O2 Sensor Screen Ground Continuity
- H10: O2 Sensor Short Circuit To Ground
- H11: Stop
- H12: Signal Ground 1 Continuity
- H13: Signal Ground 2 Continuity
- H14: Stop
- H15: Check For O2 Sensor Continuity
- H16: O2 Sensor Screen Ground Continuity
- H17: Check For Short To B+
- H18: Check For Short To B+
- H19: Check Harness Short To Ground
- H20: Check Harness Short Core To Core
- H21: End
- Removal & Installation